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The following commit(s) were added to refs/heads/master by this push:
     new 2eb70b1f82 ci: add typo ci check and fix typos (#4375)
2eb70b1f82 is described below

commit 2eb70b1f8216b2c6621d0e57cd491a2067824316
Author: ZhangJian He <[email protected]>
AuthorDate: Sun May 26 11:23:04 2024 +0800

    ci: add typo ci check and fix typos (#4375)
    
    ### Motivation
    Introduce typos ci to avoid typos. See 
https://lists.apache.org/thread/04hqqcnkfc5189zsxj0s5wm37t2x7bky
    
    Signed-off-by: ZhangJian He <[email protected]>
---
 .github/workflows/bk-ci.yml                        |  8 ++++
 .typos.toml                                        | 56 ++++++++++++++++++++++
 .../org/apache/bookkeeper/common/util/Retries.java |  2 +-
 .../org/apache/bookkeeper/bookie/BookieShell.java  |  4 +-
 .../EntryLogManagerForEntryLogPerLedger.java       |  2 +-
 .../bookkeeper/bookie/EntryLoggerAllocator.java    |  4 +-
 .../bookie/InterleavedLedgerStorage.java           |  2 +-
 .../bookkeeper/bookie/LedgerDirsManager.java       | 10 ++--
 .../bookkeeper/bookie/LedgerDirsMonitor.java       | 10 ++--
 .../bookkeeper/bookie/storage/ldb/ReadCache.java   |  2 +-
 .../org/apache/bookkeeper/client/BookKeeper.java   |  2 +-
 .../apache/bookkeeper/client/BookKeeperAdmin.java  |  6 +--
 .../bookkeeper/client/DistributionSchedule.java    |  2 +-
 .../bookkeeper/client/EnsemblePlacementPolicy.java |  2 +-
 .../client/LedgerFragmentReplicator.java           |  8 ++--
 .../org/apache/bookkeeper/client/LedgerHandle.java |  4 +-
 .../client/WeightedRandomSelectionImpl.java        | 12 ++---
 .../apache/bookkeeper/client/api/OpenBuilder.java  |  2 +-
 .../apache/bookkeeper/client/api/ReadHandle.java   |  2 +-
 .../bookkeeper/client/api/WriteAdvHandle.java      |  2 +-
 .../bookkeeper/conf/ClientConfiguration.java       | 14 +++---
 .../bookkeeper/conf/ServerConfiguration.java       |  4 +-
 .../bookkeeper/discover/ZKRegistrationClient.java  |  2 +-
 .../apache/bookkeeper/feature/SettableFeature.java |  8 ++--
 .../meta/AbstractHierarchicalLedgerManager.java    |  2 +-
 .../bookkeeper/meta/AbstractZkLedgerManager.java   |  2 +-
 .../org/apache/bookkeeper/meta/LedgerManager.java  |  8 ++--
 .../meta/LedgerUnderreplicationManager.java        |  2 +-
 .../bookkeeper/meta/MSLedgerManagerFactory.java    |  4 +-
 .../meta/ZkLedgerUnderreplicationManager.java      |  4 +-
 .../apache/bookkeeper/metastore/MSException.java   |  2 +-
 .../org/apache/bookkeeper/metastore/MetaStore.java |  2 +-
 .../java/org/apache/bookkeeper/net/NodeBase.java   |  2 +-
 .../bookkeeper/proto/BookieProtoEncoding.java      |  2 +-
 .../bookkeeper/proto/PerChannelBookieClient.java   |  4 +-
 .../bookkeeper/proto/ReadEntryProcessorV3.java     |  2 +-
 .../bookkeeper/proto/WriteEntryProcessorV3.java    |  2 +-
 .../bookkeeper/replication/ReplicationWorker.java  |  2 +-
 .../bookkeeper/streaming/LedgerOutputStream.java   |  2 +-
 .../apache/bookkeeper/tls/TLSContextFactory.java   |  4 +-
 .../tools/cli/commands/bookie/LedgerCommand.java   |  4 +-
 .../cli/commands/bookie/ReadLedgerCommand.java     |  6 +--
 ...generateInterleavedStorageIndexFileCommand.java |  2 +-
 .../cli/commands/client/LedgerMetaDataCommand.java |  2 +-
 .../util/AvailabilityOfEntriesOfLedger.java        |  6 +--
 .../org/apache/bookkeeper/util/DiskChecker.java    |  2 +-
 .../org/apache/bookkeeper/util/StringUtils.java    |  4 +-
 .../java/org/apache/bookkeeper/util/ZkUtils.java   |  2 +-
 .../util/collections/SynchronizedHashMultiMap.java |  2 +-
 .../bookkeeper/client/HandleFailuresTest.java      |  4 +-
 .../apache/bookkeeper/util/StaticDNSResolver.java  |  2 +-
 conf/bk_server.conf                                | 10 ++--
 conf/zookeeper.conf                                |  2 +-
 src/owasp-dependency-check-suppressions.xml        |  2 +-
 .../bookkeeper/stats/codahale/FastTimer.java       |  2 +-
 .../prometheus/DataSketchesOpStatsLogger.java      |  6 +--
 .../bookkeeper/api/kv/result/DeleteResult.java     |  2 +-
 .../bookkeeper/clients/StorageClientBuilder.java   |  2 +-
 .../clients/impl/kv/PByteBufTableImpl.java         |  2 +-
 .../apache/distributedlog/BKAsyncLogWriter.java    |  4 +-
 .../apache/distributedlog/BKLogReadHandler.java    |  2 +-
 .../apache/distributedlog/BKLogSegmentWriter.java  |  2 +-
 .../DistributedLogConfiguration.java               | 10 ++--
 .../org/apache/distributedlog/ZooKeeperClient.java |  2 +-
 .../distributedlog/ZooKeeperClientBuilder.java     | 16 +++----
 .../distributedlog/api/namespace/Namespace.java    |  2 +-
 .../impl/acl/ZKAccessControlManager.java           |  2 +-
 .../federated/FederatedZKLogMetadataStore.java     |  2 +-
 .../distributedlog/lock/ZKDistributedLock.java     |  2 +-
 .../apache/distributedlog/lock/ZKSessionLock.java  |  6 +--
 .../logsegment/LogSegmentEntryReader.java          |  2 +-
 .../distributedlog/namespace/NamespaceWatcher.java |  2 +-
 .../distributedlog/tools/DistributedLogTool.java   |  4 +-
 .../org/apache/distributedlog/zk/DefaultZKOp.java  |  2 +-
 .../apache/distributedlog/zk/ZKWatcherManager.java | 12 ++---
 .../core/src/test/resources/bk_server.conf         |  4 +-
 .../java/org/apache/distributedlog/LogRecord.java  |  2 +-
 stream/proto/src/main/proto/stream.proto           |  2 +-
 .../server/service/RegistrationStateService.java   |  2 +-
 .../bookkeeper/statelib/impl/mvcc/MVCCRecord.java  |  2 +-
 .../impl/rocksdb/checkpoint/CheckpointInfo.java    |  2 +-
 .../storage/api/cluster/ClusterInitializer.java    |  4 +-
 .../impl/cluster/ZkClusterMetadataStore.java       |  8 ++--
 .../bookkeeper/tools/perf/table/PerfClient.java    |  2 +-
 84 files changed, 222 insertions(+), 158 deletions(-)

diff --git a/.github/workflows/bk-ci.yml b/.github/workflows/bk-ci.yml
index 0dc2c7c5b3..3a21186376 100644
--- a/.github/workflows/bk-ci.yml
+++ b/.github/workflows/bk-ci.yml
@@ -483,6 +483,14 @@ jobs:
         if: cancelled()
         run: ./dev/ci-tool print_thread_dumps
 
+  typo-check:
+    name: Typo Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check typos
+        uses: crate-ci/typos@master
+
   owasp-dependency-check:
     name: OWASP Dependency Check
     runs-on: ubuntu-latest
diff --git a/.typos.toml b/.typos.toml
new file mode 100644
index 0000000000..e8ef1d3a28
--- /dev/null
+++ b/.typos.toml
@@ -0,0 +1,56 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+[default.extend-words]
+# abbr
+"ba" = "ba"
+"bve" = "bve"
+"cace" = "cace"
+"cann" = "cann"
+"dbe" = "dbe"
+"entrys" = "entrys"
+"fo" = "fo"
+"ine" = "ine"
+"isse" = "isse"
+"mor" = "mor"
+"nwe" = "nwe"
+"nd" = "nd"
+"nin" = "nin"
+"oce" = "oce"
+"ot" = "ot"
+"ser" = "ser"
+"shouldnot" = "shouldnot"
+"tio" = "tio"
+"ue" = "ue"
+# keep for comptability
+"deleteable" = "deleteable"
+"infinit" = "infinit"
+"explict" = "explict"
+"uninitalize" = "uninitalize"
+# keyword fp
+"guage" = "guage"
+"passin" = "passin"
+"testng" = "testng"
+"vertx" = "vertx"
+"verticle" = "verticle"
+
+[files]
+extend-exclude = [
+    
"bookkeeper-server/src/test/java/org/apache/bookkeeper/meta/TestLedgerMetadataSerDe.java",
+]
diff --git 
a/bookkeeper-common/src/main/java/org/apache/bookkeeper/common/util/Retries.java
 
b/bookkeeper-common/src/main/java/org/apache/bookkeeper/common/util/Retries.java
index 6a52ef597c..dff0075ac6 100644
--- 
a/bookkeeper-common/src/main/java/org/apache/bookkeeper/common/util/Retries.java
+++ 
b/bookkeeper-common/src/main/java/org/apache/bookkeeper/common/util/Retries.java
@@ -75,7 +75,7 @@ public final class Retries {
      * @param task           a task to execute.
      * @param scheduler      scheduler to schedule the task and complete the 
futures.
      * @param key            the submit key for the scheduler.
-     * @param <ReturnT>      the return tye.
+     * @param <ReturnT>      the return type.
      * @return future represents the result of the task with retries.
      */
     public static <ReturnT> CompletableFuture<ReturnT> run(
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java
index 663bea1709..00869c7fc8 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java
@@ -323,7 +323,7 @@ public class BookieShell implements Tool {
     }
 
     /**
-     * Intializes new cluster by creating required znodes for the cluster. If
+     * Initializes new cluster by creating required znodes for the cluster. If
      * ledgersrootpath is already existing then it will error out. If for any
      * reason it errors out while creating znodes for the cluster, then before
      * running initnewcluster again, try nuking existing cluster by running
@@ -704,7 +704,7 @@ public class BookieShell implements Tool {
 
             ReadLedgerCommand cmd = new ReadLedgerCommand(entryFormatter, 
ledgerIdFormatter);
             ReadLedgerCommand.ReadLedgerFlags flags = new 
ReadLedgerCommand.ReadLedgerFlags();
-            flags.bookieAddresss(bookieAddress);
+            flags.bookieAddress(bookieAddress);
             flags.firstEntryId(firstEntry);
             flags.forceRecovery(forceRecovery);
             flags.lastEntryId(lastEntry);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLogManagerForEntryLogPerLedger.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLogManagerForEntryLogPerLedger.java
index 6846b6b27f..ca6224ea83 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLogManagerForEntryLogPerLedger.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLogManagerForEntryLogPerLedger.java
@@ -152,7 +152,7 @@ class EntryLogManagerForEntryLogPerLedger extends 
EntryLogManagerBase {
          * 'expiry duration' and 'maximumSize' will be set to
          * entryLogPerLedgerCounterLimitsMultFactor times of
          * 'ledgerIdEntryLogMap' cache limits. This is needed because entries
-         * from 'ledgerIdEntryLogMap' can be removed from cache becasue of
+         * from 'ledgerIdEntryLogMap' can be removed from cache because of
          * accesstime expiry or cache size limits, but to know the actual 
number
          * of entrylogs per ledger, we should maintain this count for long 
time.
          */
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLoggerAllocator.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLoggerAllocator.java
index aec2fb1cd0..70b76aaf37 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLoggerAllocator.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/EntryLoggerAllocator.java
@@ -137,8 +137,8 @@ class EntryLoggerAllocator {
         }
     }
 
-    void setWritingLogId(long lodId) {
-        this.writingLogId = lodId;
+    void setWritingLogId(long logId) {
+        this.writingLogId = logId;
     }
 
     void setWritingCompactingLogId(long logId) {
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/InterleavedLedgerStorage.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/InterleavedLedgerStorage.java
index 323f7012bc..4c6b7a9ee4 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/InterleavedLedgerStorage.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/InterleavedLedgerStorage.java
@@ -569,7 +569,7 @@ public class InterleavedLedgerStorage implements 
CompactableLedgerStorage, Entry
         // for interleaved ledger storage, we request a checkpoint when 
rotating a entry log file.
         // the checkpoint represent the point that all the entries added 
before this point are already
         // in ledger storage and ready to be synced to disk.
-        // TODO: we could consider remove checkpointSource and 
checkpointSouce#newCheckpoint
+        // TODO: we could consider remove checkpointSource and 
checkpointSource#newCheckpoint
         // later if we provide kind of LSN (Log/Journal Squeuence Number)
         // mechanism when adding entry. {@link 
https://github.com/apache/bookkeeper/issues/279}
         Checkpoint checkpoint = checkpointSource.newCheckpoint();
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsManager.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsManager.java
index 42910b0248..6689c96df5 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsManager.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsManager.java
@@ -200,20 +200,20 @@ public class LedgerDirsManager {
 
     List<File> getDirsAboveUsableThresholdSize(long thresholdSize, boolean 
loggingNoWritable)
             throws NoWritableLedgerDirException {
-        List<File> fullLedgerDirsToAccomodate = new ArrayList<File>();
+        List<File> fullLedgerDirsToAccommodate = new ArrayList<File>();
         for (File dir: this.ledgerDirectories) {
             // Pick dirs which can accommodate little more than thresholdSize
             if (dir.getUsableSpace() > thresholdSize) {
-                fullLedgerDirsToAccomodate.add(dir);
+                fullLedgerDirsToAccommodate.add(dir);
             }
         }
 
-        if (!fullLedgerDirsToAccomodate.isEmpty()) {
+        if (!fullLedgerDirsToAccommodate.isEmpty()) {
             if (loggingNoWritable) {
                 LOG.info("No writable ledger dirs below diskUsageThreshold. "
-                    + "But Dirs that can accommodate {} are: {}", 
thresholdSize, fullLedgerDirsToAccomodate);
+                    + "But Dirs that can accommodate {} are: {}", 
thresholdSize, fullLedgerDirsToAccommodate);
             }
-            return fullLedgerDirsToAccomodate;
+            return fullLedgerDirsToAccommodate;
         }
 
         // We will reach here when we find no ledgerDir which has atleast
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsMonitor.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsMonitor.java
index 7ad8ba1e0c..32321aee27 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsMonitor.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/LedgerDirsMonitor.java
@@ -124,13 +124,13 @@ class LedgerDirsMonitor {
             }
         }
 
-        List<File> fullfilledDirs = new 
ArrayList<File>(ldm.getFullFilledLedgerDirs());
+        List<File> fulfilledDirs = new 
ArrayList<File>(ldm.getFullFilledLedgerDirs());
         boolean makeWritable = ldm.hasWritableLedgerDirs();
 
         // When bookie is in READONLY mode, i.e there are no 
writableLedgerDirs:
-        // - Update fullfilledDirs disk usage.
+        // - Update fulfilledDirs disk usage.
         // - If the total disk usage is below DiskLowWaterMarkUsageThreshold
-        // add fullfilledDirs back to writableLedgerDirs list if their usage 
is < conf.getDiskUsageThreshold.
+        // add fulfilledDirs back to writableLedgerDirs list if their usage is 
< conf.getDiskUsageThreshold.
         try {
             if (!makeWritable) {
                 float totalDiskUsage = 
diskChecker.getTotalDiskUsage(ldm.getAllLedgerDirs());
@@ -144,7 +144,7 @@ class LedgerDirsMonitor {
                 }
             }
             // Update all full-filled disk space usage
-            for (File dir : fullfilledDirs) {
+            for (File dir : fulfilledDirs) {
                 try {
                     diskUsages.put(dir, diskChecker.checkDir(dir));
                     if (makeWritable) {
@@ -254,7 +254,7 @@ class LedgerDirsMonitor {
 
     private void validateThreshold(float diskSpaceThreshold, float 
diskSpaceLwmThreshold) {
         if (diskSpaceThreshold <= 0 || diskSpaceThreshold >= 1 || 
diskSpaceLwmThreshold - diskSpaceThreshold > 1e-6) {
-            throw new IllegalArgumentException("Disk space threashold: "
+            throw new IllegalArgumentException("Disk space threshold: "
                     + diskSpaceThreshold + " and lwm threshold: " + 
diskSpaceLwmThreshold
                     + " are not valid. Should be > 0 and < 1 and 
diskSpaceThreshold >= diskSpaceLwmThreshold");
         }
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/ReadCache.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/ReadCache.java
index ab2bc33cb4..1d850c456c 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/ReadCache.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/ReadCache.java
@@ -41,7 +41,7 @@ import org.slf4j.LoggerFactory;
  *
  * <p>Uses the specified amount of memory and pairs it with a hashmap.
  *
- * <p>The memory is splitted in multiple segments that are used in a
+ * <p>The memory is split in multiple segments that are used in a
  * ring-buffer fashion. When the read cache is full, the oldest segment
  * is cleared and rotated to make space for new entries to be added to
  * the read cache.
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeper.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeper.java
index d7043dc8c9..751d40ef53 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeper.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeper.java
@@ -706,7 +706,7 @@ public class BookKeeper implements 
org.apache.bookkeeper.client.api.BookKeeper {
      * cheap to compute but does not protect against byzantine bookies (i.e., a
      * bookie might report fake bytes and a matching CRC32). The MAC code is 
more
      * expensive to compute, but is protected by a password, i.e., a bookie 
can't
-     * report fake bytes with a mathching MAC unless it knows the password.
+     * report fake bytes with a matching MAC unless it knows the password.
      * The CRC32C, which use SSE processor instruction, has better performance 
than CRC32.
      * Legacy DigestType for backward compatibility. If we want to add new 
DigestType,
      * we should add it in here, client.api.DigestType and DigestType in 
DataFormats.proto.
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeperAdmin.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeperAdmin.java
index 1df915f650..371c214532 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeperAdmin.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeperAdmin.java
@@ -1297,7 +1297,7 @@ public class BookKeeperAdmin implements AutoCloseable {
     }
 
     /**
-     * Intializes new cluster by creating required znodes for the cluster. If
+     * Initializes new cluster by creating required znodes for the cluster. If
      * ledgersrootpath is already existing then it will error out.
      *
      * @param conf
@@ -1569,7 +1569,7 @@ public class BookKeeperAdmin implements AutoCloseable {
      * Triggers AuditTask by resetting lostBookieRecoveryDelay and then make
      * sure the ledgers stored in the given decommissioning bookie are properly
      * replicated and they are not underreplicated because of the given bookie.
-     * This method waits untill there are no underreplicatedledgers because of 
this
+     * This method waits until there are no underreplicatedledgers because of 
this
      * bookie. If the given Bookie is not shutdown yet, then it will throw
      * BKIllegalOpException.
      *
@@ -1612,7 +1612,7 @@ public class BookKeeperAdmin implements AutoCloseable {
         Set<Long> ledgersStoredInThisBookie = 
bookieToLedgersMap.get(bookieAddress.toString());
         if ((ledgersStoredInThisBookie != null) && 
(!ledgersStoredInThisBookie.isEmpty())) {
             /*
-             * wait untill all the ledgers are replicated to other
+             * wait until all the ledgers are replicated to other
              * bookies by making sure that these ledgers metadata don't
              * contain this bookie as part of their ensemble.
              */
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/DistributionSchedule.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/DistributionSchedule.java
index 2646d3abc5..295cbd9faa 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/DistributionSchedule.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/DistributionSchedule.java
@@ -22,7 +22,7 @@ import java.util.Map;
 import org.apache.bookkeeper.net.BookieId;
 
 /**
- * This interface determins how entries are distributed among bookies.
+ * This interface determines how entries are distributed among bookies.
  *
  * <p>Every entry gets replicated to some number of replicas. The first 
replica for
  * an entry is given a replicaIndex of 0, and so on. To distribute write load,
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/EnsemblePlacementPolicy.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/EnsemblePlacementPolicy.java
index 05a687b964..58d2bc0fc4 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/EnsemblePlacementPolicy.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/EnsemblePlacementPolicy.java
@@ -369,7 +369,7 @@ public interface EnsemblePlacementPolicy {
      *
      * <p>The default implementation will pick a bookie randomly from the 
ensemble.
      * Other placement policies will be able to do better decisions based on
-     * additional informations (eg: rack or region awareness).
+     * additional information (eg: rack or region awareness).
      *
      * @param metadata
      *            the {@link LedgerMetadata} object
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerFragmentReplicator.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerFragmentReplicator.java
index 3d58bdae36..f6d54e1d02 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerFragmentReplicator.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerFragmentReplicator.java
@@ -233,11 +233,11 @@ public class LedgerFragmentReplicator {
             final Set<BookieId> targetBookieAddresses,
             final BiConsumer<Long, Long> onReadEntryFailureCallback)
             throws InterruptedException {
-        Set<LedgerFragment> partionedFragments = splitIntoSubFragments(lh, lf,
+        Set<LedgerFragment> partitionedFragments = splitIntoSubFragments(lh, 
lf,
                 bkc.getConf().getRereplicationEntryBatchSize());
         LOG.info("Replicating fragment {} in {} sub fragments.",
-                lf, partionedFragments.size());
-        replicateNextBatch(lh, partionedFragments.iterator(),
+                lf, partitionedFragments.size());
+        replicateNextBatch(lh, partitionedFragments.iterator(),
                 ledgerFragmentMcb, targetBookieAddresses, 
onReadEntryFailureCallback);
     }
 
@@ -559,7 +559,7 @@ public class LedgerFragmentReplicator {
     /**
      * Callback for recovery of a single ledger fragment. Once the fragment has
      * had all entries replicated, update the ensemble in zookeeper. Once
-     * finished propogate callback up to ledgerFragmentsMcb which should be a
+     * finished propagate callback up to ledgerFragmentsMcb which should be a
      * multicallback responsible for all fragments in a single ledger
      */
     static class SingleFragmentCallback implements AsyncCallback.VoidCallback {
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerHandle.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerHandle.java
index c49aa65616..6a15cb42f7 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerHandle.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerHandle.java
@@ -785,7 +785,7 @@ public class LedgerHandle implements WriteHandle {
      * Read a sequence of entries asynchronously, allowing to read after the 
LastAddConfirmed range.
      * <br>This is the same of
      * {@link #asyncReadEntries(long, long, ReadCallback, Object) }
-     * but it lets the client read without checking the local value of 
LastAddConfirmed, so that it is possibile to
+     * but it lets the client read without checking the local value of 
LastAddConfirmed, so that it is possible to
      * read entries for which the writer has not received the acknowledge yet. 
<br>
      * For entries which are within the range 0..LastAddConfirmed BookKeeper 
guarantees that the writer has successfully
      * received the acknowledge.<br>
@@ -1009,7 +1009,7 @@ public class LedgerHandle implements WriteHandle {
      * Read a sequence of entries asynchronously, allowing to read after the 
LastAddConfirmed range.
      * <br>This is the same of
      * {@link #asyncReadEntries(long, long, ReadCallback, Object) }
-     * but it lets the client read without checking the local value of 
LastAddConfirmed, so that it is possibile to
+     * but it lets the client read without checking the local value of 
LastAddConfirmed, so that it is possible to
      * read entries for which the writer has not received the acknowledge yet. 
<br>
      * For entries which are within the range 0..LastAddConfirmed BookKeeper 
guarantees that the writer has successfully
      * received the acknowledge.<br>
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/WeightedRandomSelectionImpl.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/WeightedRandomSelectionImpl.java
index 16443c63d2..1a2b9f0dcd 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/WeightedRandomSelectionImpl.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/WeightedRandomSelectionImpl.java
@@ -37,7 +37,7 @@ class WeightedRandomSelectionImpl<T> implements 
WeightedRandomSelection<T> {
     Double randomMax;
     int maxProbabilityMultiplier;
     Map<T, WeightedObject> map;
-    TreeMap<Double, T> cummulativeMap = new TreeMap<Double, T>();
+    TreeMap<Double, T> cumulativeMap = new TreeMap<Double, T>();
     ReadWriteLock rwLock = new ReentrantReadWriteLock(true);
 
     WeightedRandomSelectionImpl() {
@@ -120,10 +120,10 @@ class WeightedRandomSelectionImpl<T> implements 
WeightedRandomSelection<T> {
         // The probability of picking a bookie randomly is 
defaultPickProbability
         // but we change that priority by looking at the weight that each 
bookie
         // carries.
-        TreeMap<Double, T> tmpCummulativeMap = new TreeMap<Double, T>();
+        TreeMap<Double, T> tmpCumulativeMap = new TreeMap<Double, T>();
         Double key = 0.0;
         for (Map.Entry<T, Double> e : weightMap.entrySet()) {
-            tmpCummulativeMap.put(key, e.getKey());
+            tmpCumulativeMap.put(key, e.getKey());
             if (LOG.isDebugEnabled()) {
                 LOG.debug("Key: {} Value: {} AssignedKey: {} AssignedWeight: 
{}",
                         e.getKey(), e.getValue(), key, e.getValue());
@@ -134,7 +134,7 @@ class WeightedRandomSelectionImpl<T> implements 
WeightedRandomSelection<T> {
         rwLock.writeLock().lock();
         try {
             this.map = map;
-            cummulativeMap = tmpCummulativeMap;
+            cumulativeMap = tmpCumulativeMap;
             randomMax = key;
         } finally {
             rwLock.writeLock().unlock();
@@ -148,8 +148,8 @@ class WeightedRandomSelectionImpl<T> implements 
WeightedRandomSelection<T> {
             // pick a random number between 0 and randMax
             Double randomNum = randomMax * Math.random();
             // find the nearest key in the map corresponding to the randomNum
-            Double key = cummulativeMap.floorKey(randomNum);
-            return cummulativeMap.get(key);
+            Double key = cumulativeMap.floorKey(randomNum);
+            return cumulativeMap.get(key);
         } finally {
             rwLock.readLock().unlock();
         }
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/OpenBuilder.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/OpenBuilder.java
index a0c09a3c92..9b843a1711 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/OpenBuilder.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/OpenBuilder.java
@@ -53,7 +53,7 @@ public interface OpenBuilder extends OpBuilder<ReadHandle> {
     OpenBuilder withRecovery(boolean recovery);
 
     /**
-     * Sets the password to be used to open the ledger. It defauls to an empty 
password
+     * Sets the password to be used to open the ledger. It defaults to an 
empty password
      *
      * @param password the password to unlock the ledger
      *
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/ReadHandle.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/ReadHandle.java
index e9bcddd0b3..8e2e633a35 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/ReadHandle.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/ReadHandle.java
@@ -95,7 +95,7 @@ public interface ReadHandle extends Handle {
      * Read a sequence of entries asynchronously, allowing to read after the 
LastAddConfirmed range.
      * <br>This is the same of
      * {@link #read(long, long) }
-     * but it lets the client read without checking the local value of 
LastAddConfirmed, so that it is possibile to
+     * but it lets the client read without checking the local value of 
LastAddConfirmed, so that it is possible to
      * read entries for which the writer has not received the acknowledge yet. 
<br>
      * For entries which are within the range 0..LastAddConfirmed BookKeeper 
guarantees that the writer has successfully
      * received the acknowledge.<br>
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/WriteAdvHandle.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/WriteAdvHandle.java
index 7fd80a0637..9c33ecfbb1 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/WriteAdvHandle.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/api/WriteAdvHandle.java
@@ -29,7 +29,7 @@ import 
org.apache.bookkeeper.common.annotation.InterfaceStability.Unstable;
 import org.apache.bookkeeper.common.concurrent.FutureUtils;
 
 /**
- * Provide write access to a ledger. Using WriteAdvHandler the writer MUST 
explictly set an entryId. Beware that the
+ * Provide write access to a ledger. Using WriteAdvHandler the writer MUST 
explicitly set an entryId. Beware that the
  * write for a given entryId will be acknowledged if and only if all entries 
up to entryId - 1 have been acknowledged
  * too (expected from entryId 0)
  *
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
index feae692465..cb942d99b2 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ClientConfiguration.java
@@ -980,7 +980,7 @@ public class ClientConfiguration extends 
AbstractConfiguration<ClientConfigurati
     }
 
     /**
-     * Multipler to use when determining time between successive speculative 
read requests.
+     * Multiplier to use when determining time between successive speculative 
read requests.
      *
      * @return speculative read timeout backoff multiplier.
      */
@@ -989,10 +989,10 @@ public class ClientConfiguration extends 
AbstractConfiguration<ClientConfigurati
     }
 
     /**
-     * Set the multipler to use when determining time between successive 
speculative read requests.
+     * Set the multiplier to use when determining time between successive 
speculative read requests.
      *
      * @param speculativeReadTimeoutBackoffMultiplier
-     *          multipler to use when determining time between successive 
speculative read requests.
+     *          multiplier to use when determining time between successive 
speculative read requests.
      * @return client configuration.
      */
     public ClientConfiguration setSpeculativeReadTimeoutBackoffMultiplier(
@@ -1002,7 +1002,7 @@ public class ClientConfiguration extends 
AbstractConfiguration<ClientConfigurati
     }
 
     /**
-     * Multipler to use when determining time between successive speculative 
read LAC requests.
+     * Multiplier to use when determining time between successive speculative 
read LAC requests.
      *
      * @return speculative read LAC timeout backoff multiplier.
      */
@@ -1011,10 +1011,10 @@ public class ClientConfiguration extends 
AbstractConfiguration<ClientConfigurati
     }
 
     /**
-     * Set the multipler to use when determining time between successive 
speculative read LAC requests.
+     * Set the multiplier to use when determining time between successive 
speculative read LAC requests.
      *
      * @param speculativeReadLACTimeoutBackoffMultiplier
-     *          multipler to use when determining time between successive 
speculative read LAC requests.
+     *          multiplier to use when determining time between successive 
speculative read LAC requests.
      * @return client configuration.
      */
     public ClientConfiguration setSpeculativeReadLACTimeoutBackoffMultiplier(
@@ -1193,7 +1193,7 @@ public class ClientConfiguration extends 
AbstractConfiguration<ClientConfigurati
      * preference) to read all entries for a ledger.
      *
      * <p>Having all the read to one bookie will increase the chances that
-     * a read request will be fullfilled by Bookie read cache (or OS file
+     * a read request will be fulfilled by Bookie read cache (or OS file
      * system cache) when doing sequential reads.
      *
      * @param enabled the flag to enable/disable sticky reads.
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ServerConfiguration.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ServerConfiguration.java
index 51e45dc6f8..7785bfae0b 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ServerConfiguration.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ServerConfiguration.java
@@ -409,7 +409,7 @@ public class ServerConfiguration extends 
AbstractConfiguration<ServerConfigurati
     /**
      * Get Garbage collection wait time. Default value is 10 minutes.
      * The guideline is not to set a too low value for this, if using 
zookeeper based
-     * ledger manager. And it would be nice to align with the average lifecyle 
time of
+     * ledger manager. And it would be nice to align with the average 
lifecycle time of
      * ledgers in the system.
      *
      * @return gc wait time
@@ -1223,7 +1223,7 @@ public class ServerConfiguration extends 
AbstractConfiguration<ServerConfigurati
      * Configure the bookie to advertise a specific BookieId.
      *
      * <p>By default, a bookie will advertise a BookieId computed
-     * from the primary network endpoint addresss.
+     * from the primary network endpoint address.
      *
      * @see #getBookieId()
      * @see #setAdvertisedAddress(java.lang.String)
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/discover/ZKRegistrationClient.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/discover/ZKRegistrationClient.java
index 2f143c07f6..cca631086b 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/discover/ZKRegistrationClient.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/discover/ZKRegistrationClient.java
@@ -369,7 +369,7 @@ public class ZKRegistrationClient implements 
RegistrationClient {
                         .collect(bookieInfoUpdated)
                         .whenComplete((List<Versioned<BookieServiceInfo>> 
info, Throwable error) -> {
                             // we are ignoring errors intentionally
-                            // there could be bookies that publish unparseable 
information
+                            // there could be bookies that publish unparsable 
information
                             // or other temporary/permanent errors
                             future.complete(new Versioned<>(bookies, version));
                         });
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/feature/SettableFeature.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/feature/SettableFeature.java
index bb6d1db091..797f5badee 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/feature/SettableFeature.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/feature/SettableFeature.java
@@ -28,16 +28,16 @@ public class SettableFeature extends FixedValueFeature {
         super(name, initialAvailability);
     }
 
-    public SettableFeature(String name, boolean isAvailabile) {
-        super(name, isAvailabile);
+    public SettableFeature(String name, boolean isAvailable) {
+        super(name, isAvailable);
     }
 
     public void set(int availability) {
         this.availability = availability;
     }
 
-    public void set(boolean isAvailabile) {
-        this.availability = isAvailabile ? FEATURE_AVAILABILITY_MAX_VALUE : 0;
+    public void set(boolean isAvailable) {
+        this.availability = isAvailable ? FEATURE_AVAILABILITY_MAX_VALUE : 0;
     }
 
 }
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractHierarchicalLedgerManager.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractHierarchicalLedgerManager.java
index c7a730cc73..4a1ad27bb5 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractHierarchicalLedgerManager.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractHierarchicalLedgerManager.java
@@ -190,7 +190,7 @@ public abstract class AbstractHierarchicalLedgerManager 
extends AbstractZkLedger
         NavigableSet<Long> zkActiveLedgers = new TreeSet<Long>();
 
         if (!path.startsWith(ledgerRootPath)) {
-            LOG.warn("Ledger path [{}] is not a valid path name, it should 
start wth {}", path, ledgerRootPath);
+            LOG.warn("Ledger path [{}] is not a valid path name, it should 
start with {}", path, ledgerRootPath);
             return zkActiveLedgers;
         }
 
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractZkLedgerManager.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractZkLedgerManager.java
index 102c7d7792..59b17be922 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractZkLedgerManager.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractZkLedgerManager.java
@@ -553,7 +553,7 @@ public abstract class AbstractZkLedgerManager implements 
LedgerManager, Watcher
      * Process ledgers in a single zk node.
      *
      * <p>
-     * for each ledger found in this zk node, processor#process(ledgerId) will 
be triggerred
+     * for each ledger found in this zk node, processor#process(ledgerId) will 
be triggered
      * to process a specific ledger. after all ledgers has been processed, the 
finalCb will
      * be called with provided context object. The RC passed to finalCb is 
decided by :
      * <ul>
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerManager.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerManager.java
index 2f08c2e5b7..db197ce02e 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerManager.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerManager.java
@@ -97,7 +97,7 @@ public interface LedgerManager extends Closeable {
      * @param currentVersion
      *          The version of the metadata we expect to be overwriting.
      * @return Future which, when completed, contains the newly written 
metadata.
-     *         Comleted with an exceptione:<ul>
+     *         Completed with an exception:<ul>
      *          <li>{@link 
org.apache.bookkeeper.client.BKException.BKMetadataVersionException}
      *          if version in metadata doesn't match</li>
      *          <li>{@link 
org.apache.bookkeeper.client.BKException.ZKException} for other issue</li>
@@ -130,9 +130,9 @@ public interface LedgerManager extends Closeable {
      * Loop to process all ledgers.
      * <p>
      * <ul>
-     * After all ledgers were processed, finalCb will be triggerred:
+     * After all ledgers were processed, finalCb will be triggered:
      * <li> if all ledgers are processed done with OK, success rc will be 
passed to finalCb.
-     * <li> if some ledgers are prcoessed failed, failure rc will be passed to 
finalCb.
+     * <li> if some ledgers are processed failed, failure rc will be passed to 
finalCb.
      * </ul>
      * </p>
      *
@@ -145,7 +145,7 @@ public interface LedgerManager extends Closeable {
      * @param successRc
      *          Success RC code passed to finalCb when callback
      * @param failureRc
-     *          Failure RC code passed to finalCb when exceptions occured.
+     *          Failure RC code passed to finalCb when exceptions occurred.
      */
     void asyncProcessLedgers(Processor<Long> processor, 
AsyncCallback.VoidCallback finalCb,
                                     Object context, int successRc, int 
failureRc);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerUnderreplicationManager.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerUnderreplicationManager.java
index 256f7814d7..64548fbd13 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerUnderreplicationManager.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/LedgerUnderreplicationManager.java
@@ -49,7 +49,7 @@ public interface LedgerUnderreplicationManager extends 
AutoCloseable {
 
     /**
      * Mark a ledger as underreplicated with missing bookies. The replication 
should then
-     * check which fragements are underreplicated and rereplicate them.
+     * check which fragments are underreplicated and rereplicate them.
      *
      * @param ledgerId ledger id
      * @param missingReplicas missing replicas
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/MSLedgerManagerFactory.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/MSLedgerManagerFactory.java
index fa4776bd28..bc9ae3a35a 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/MSLedgerManagerFactory.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/MSLedgerManagerFactory.java
@@ -488,7 +488,7 @@ public class MSLedgerManagerFactory extends 
AbstractZkLedgerManagerFactory {
                 @Override
                 public void complete(int rc, Version version, Object ctx) {
                     if (MSException.Code.BadVersion.getCode() == rc) {
-                        LOG.info("Bad version provided to updat metadata for 
ledger {}", ledgerId);
+                        LOG.info("Bad version provided to update metadata for 
ledger {}", ledgerId);
                         promise.completeExceptionally(new 
BKException.BKMetadataVersionException());
                     } else if (MSException.Code.NoKey.getCode() == rc) {
                         LOG.warn("Ledger {} doesn't exist when writing its 
ledger metadata.", ledgerId);
@@ -761,7 +761,7 @@ public class MSLedgerManagerFactory extends 
AbstractZkLedgerManagerFactory {
         try {
             MetastoreUtils.cleanTable(ledgerTable, 
conf.getMetastoreMaxEntriesPerScan());
         } catch (MSException mse) {
-            throw new IOException("Exception when cleanning up table " + 
TABLE_NAME, mse);
+            throw new IOException("Exception when cleaning up table " + 
TABLE_NAME, mse);
         }
         LOG.info("Finished cleaning up table {}.", TABLE_NAME);
         // Delete and recreate the LAYOUT information.
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/ZkLedgerUnderreplicationManager.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/ZkLedgerUnderreplicationManager.java
index fd43fcfa3e..4118e19131 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/ZkLedgerUnderreplicationManager.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/ZkLedgerUnderreplicationManager.java
@@ -73,7 +73,7 @@ import org.slf4j.LoggerFactory;
 
 /**
  * ZooKeeper implementation of underreplication manager.
- * This is implemented in a heirarchical fashion, so it'll work with
+ * This is implemented in a hierarchical fashion, so it'll work with
  * FlatLedgerManagerFactory and HierarchicalLedgerManagerFactory.
  *
  * <p>Layout is:
@@ -82,7 +82,7 @@ import org.slf4j.LoggerFactory;
  *                         locks/(ledgerId)
  *
  * <p>The hierarchical path is created by splitting the ledger into 4 2byte
- * segments which are represented in hexidecimal.
+ * segments which are represented in hexadecimal.
  * e.g. For ledger id 0xcafebeef0000feed, the path is
  *  cafe/beef/0000/feed/
  */
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MSException.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MSException.java
index 3fbcf538d9..f0d2c3bc74 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MSException.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MSException.java
@@ -40,7 +40,7 @@ public abstract class MSException extends Exception {
         InterruptedException (-100, "Operation interrupted"),
         IllegalOp (-101, "Illegal operation"),
         ServiceDown (-102, "Metadata service is down"),
-        OperationFailure(-103, "Operaion failed on metadata storage server 
side");
+        OperationFailure(-103, "Operation failed on metadata storage server 
side");
 
         private static final Map<Integer, Code> codes = new HashMap<Integer, 
Code>();
 
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MetaStore.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MetaStore.java
index 8d7c5d4a7c..04eb74f2eb 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MetaStore.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/metastore/MetaStore.java
@@ -31,7 +31,7 @@ public interface MetaStore {
     String getName();
 
     /**
-     * Get the plugin verison.
+     * Get the plugin version.
      *
      * @return the plugin version.
      */
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/net/NodeBase.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/net/NodeBase.java
index 46442f50c1..8e0233ad16 100644
--- a/bookkeeper-server/src/main/java/org/apache/bookkeeper/net/NodeBase.java
+++ b/bookkeeper-server/src/main/java/org/apache/bookkeeper/net/NodeBase.java
@@ -48,7 +48,7 @@ public class NodeBase implements Node {
     /**
      * Construct a node from its path.
      * @param path
-     *   a concatenation of this node's location, the path seperator, and its 
name
+     *   a concatenation of this node's location, the path separator, and its 
name
      */
     public NodeBase(String path) {
         path = normalize(path);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/BookieProtoEncoding.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/BookieProtoEncoding.java
index d8bfb4257a..0c3b7bf8e8 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/BookieProtoEncoding.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/BookieProtoEncoding.java
@@ -475,7 +475,7 @@ public class BookieProtoEncoding {
         // a heap buffer while serializing and pass it down to netty library.
         // In AbstractChannel#filterOutboundMessage(), netty copies that data 
to a direct buffer if
         // it is currently in heap (otherwise skips it and uses it directly).
-        // Allocating a direct buffer reducing unncessary CPU cycles for 
buffer copies in BK client
+        // Allocating a direct buffer reducing unnecessary CPU cycles for 
buffer copies in BK client
         // and also helps alleviate pressure off the GC, since there is less 
memory churn.
         // Bookies aren't usually CPU bound. This change improves READ_ENTRY 
code paths by a small factor as well.
         ByteBuf buf = allocator.directBuffer(frameSize, frameSize);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/PerChannelBookieClient.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/PerChannelBookieClient.java
index 0e5335ca42..5fe1a6e2ef 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/PerChannelBookieClient.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/PerChannelBookieClient.java
@@ -588,7 +588,7 @@ public class PerChannelBookieClient extends 
ChannelInboundHandlerAdapter {
         }
 
         // In the netty pipeline, we need to split packets based on length, so 
we
-        // use the {@link LengthFieldBasedFramDecoder}. Other than that all 
actions
+        // use the {@link LengthFieldBasedFrameDecoder}. Other than that all 
actions
         // are carried out in this class, e.g., making sense of received 
messages,
         // prepending the length to outgoing packets etc.
         bootstrap.handler(new ChannelInitializer<Channel>() {
@@ -2373,7 +2373,7 @@ public class PerChannelBookieClient extends 
ChannelInboundHandlerAdapter {
         }
     }
 
-    // visable for testing
+    // visible for testing
     CompletionKey newCompletionKey(long txnId, OperationType operationType) {
         return new TxnCompletionKey(txnId, operationType);
     }
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/ReadEntryProcessorV3.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/ReadEntryProcessorV3.java
index fb0b4f62a8..3a85ca0949 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/ReadEntryProcessorV3.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/ReadEntryProcessorV3.java
@@ -200,7 +200,7 @@ class ReadEntryProcessorV3 extends PacketProcessorBaseV3 {
             .setLedgerId(ledgerId)
             .setEntryId(entryId);
         try {
-            // handle fence reqest
+            // handle fence request
             if (RequestUtils.isFenceRequest(readRequest)) {
                 LOG.info("Ledger fence request received for ledger: {} from 
address: {}", ledgerId,
                     channel.remoteAddress());
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/WriteEntryProcessorV3.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/WriteEntryProcessorV3.java
index 381b887a16..3aaa9219f9 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/WriteEntryProcessorV3.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/WriteEntryProcessorV3.java
@@ -126,7 +126,7 @@ class WriteEntryProcessorV3 extends PacketProcessorBaseV3 {
             status = StatusCode.EOK;
         } catch (OperationRejectedException e) {
             
requestProcessor.getRequestStats().getAddEntryRejectedCounter().inc();
-            // Avoid to log each occurence of this exception as this can 
happen when the ledger storage is
+            // Avoid to log each occurrence of this exception as this can 
happen when the ledger storage is
             // unable to keep up with the write rate.
             if (logger.isDebugEnabled()) {
                 logger.debug("Operation rejected while writing {}", request, 
e);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/replication/ReplicationWorker.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/replication/ReplicationWorker.java
index cf1f2f2f59..c32487a30b 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/replication/ReplicationWorker.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/replication/ReplicationWorker.java
@@ -558,7 +558,7 @@ public class ReplicationWorker implements Runnable {
      *
      * <p>To avoid this situation, we need to check if bookies in the final 
open ensemble
      * are unavailable, and take action if so. The action to take is to close 
the ledger,
-     * after a grace period as the writting client may replace the faulty 
bookie on its
+     * after a grace period as the writing client may replace the faulty 
bookie on its
      * own.
      *
      * <p>Missing bookies in closed ledgers are fine, as we know the last 
confirmed add, so
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/streaming/LedgerOutputStream.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/streaming/LedgerOutputStream.java
index ed73293a54..94866877dc 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/streaming/LedgerOutputStream.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/streaming/LedgerOutputStream.java
@@ -89,7 +89,7 @@ public class LedgerOutputStream extends OutputStream {
             try {
                 lh.addEntry(b);
             } catch (InterruptedException ie) {
-                LOG.warn("Interrupted while flusing " + ie);
+                LOG.warn("Interrupted while flushing " + ie);
                 Thread.currentThread().interrupt();
             } catch (BKException bke) {
                 LOG.warn("BookKeeper exception ", bke);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tls/TLSContextFactory.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tls/TLSContextFactory.java
index 03f9951d8c..7570436b95 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tls/TLSContextFactory.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tls/TLSContextFactory.java
@@ -263,7 +263,7 @@ public class TLSContextFactory implements 
SecurityHandlerFactory {
 
         // get key-file and trust-file locations and passwords
         if (!(config instanceof ClientConfiguration)) {
-            throw new SecurityException("Client configruation not provided");
+            throw new SecurityException("Client configuration not provided");
         }
 
         clientConf = (ClientConfiguration) config;
@@ -387,7 +387,7 @@ public class TLSContextFactory implements 
SecurityHandlerFactory {
 
         // get key-file and trust-file locations and passwords
         if (!(config instanceof ServerConfiguration)) {
-            throw new SecurityException("Server configruation not provided");
+            throw new SecurityException("Server configuration not provided");
         }
 
         serverConf = (ServerConfiguration) config;
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/LedgerCommand.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/LedgerCommand.java
index fa753e9f47..7434706b9f 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/LedgerCommand.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/LedgerCommand.java
@@ -136,8 +136,8 @@ public class LedgerCommand extends 
BookieCommand<LedgerCommand.LedgerFlags> {
 
     private boolean dumpLedgerInfo(long ledgerId, ServerConfiguration conf) {
         try {
-            DbLedgerStorage.readLedgerIndexEntries(ledgerId, conf, 
(currentEntry, entryLodId, position) -> System.out
-                    .println("entry " + currentEntry + "\t:\t(log: " + 
entryLodId + ", pos: " + position + ")"));
+            DbLedgerStorage.readLedgerIndexEntries(ledgerId, conf, 
(currentEntry, entryLogId, position) -> System.out
+                    .println("entry " + currentEntry + "\t:\t(log: " + 
entryLogId + ", pos: " + position + ")"));
         } catch (IOException e) {
             System.err.printf("ERROR: initializing dbLedgerStorage %s", 
e.getMessage());
             return false;
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/ReadLedgerCommand.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/ReadLedgerCommand.java
index 20b4232e31..e07dc9d9d9 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/ReadLedgerCommand.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/ReadLedgerCommand.java
@@ -109,7 +109,7 @@ public class ReadLedgerCommand extends 
BookieCommand<ReadLedgerCommand.ReadLedge
         private boolean forceRecovery;
 
         @Parameter(names = { "-b", "--bookie" }, description = "Only read from 
a specific bookie")
-        private String bookieAddresss;
+        private String bookieAddress;
 
         @Parameter(names = { "-lf", "--ledgeridformatter" }, description = 
"Set ledger id formatter")
         private String ledgerIdFormatter;
@@ -146,9 +146,9 @@ public class ReadLedgerCommand extends 
BookieCommand<ReadLedgerCommand.ReadLedge
         long lastEntry = flags.lastEntryId;
 
         final BookieId bookie;
-        if (flags.bookieAddresss != null) {
+        if (flags.bookieAddress != null) {
             // A particular bookie was specified
-            bookie = BookieId.parse(flags.bookieAddresss);
+            bookie = BookieId.parse(flags.bookieAddress);
         } else {
             bookie = null;
         }
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/RegenerateInterleavedStorageIndexFileCommand.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/RegenerateInterleavedStorageIndexFileCommand.java
index bbf933fda8..c50e808116 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/RegenerateInterleavedStorageIndexFileCommand.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/bookie/RegenerateInterleavedStorageIndexFileCommand.java
@@ -79,7 +79,7 @@ public class RegenerateInterleavedStorageIndexFileCommand
             description = "The password in base64 encoding, for cases where 
the password is not UTF-8.")
         private String b64Password = DEFAULT;
 
-        @Parameter(names = { "-d", "--dryrun" }, description = "Process the 
entryLogger, but don't write anthing.")
+        @Parameter(names = { "-d", "--dryrun" }, description = "Process the 
entryLogger, but don't write anything.")
         private boolean dryRun;
 
         @Parameter(names = { "-l", "--ledgerids" },
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/client/LedgerMetaDataCommand.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/client/LedgerMetaDataCommand.java
index 4bbb50e7cc..430c0dde21 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/client/LedgerMetaDataCommand.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/client/LedgerMetaDataCommand.java
@@ -137,7 +137,7 @@ public class LedgerMetaDataCommand extends 
BookieCommand<LedgerMetaDataCommand.L
                             throw be;
                         }
                         m.writeLedgerMetadata(flag.ledgerId, md, new 
LongVersion(-1L)).join();
-                        LOG.info("successsfully updated ledger metadata {}", 
flag.ledgerId);
+                        LOG.info("successfully updated ledger metadata {}", 
flag.ledgerId);
                     }
                 } else {
                     printLedgerMetadata(flag.ledgerId, 
m.readLedgerMetadata(flag.ledgerId).get().getValue(), true);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/AvailabilityOfEntriesOfLedger.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/AvailabilityOfEntriesOfLedger.java
index 24361cede9..cf221f5dda 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/AvailabilityOfEntriesOfLedger.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/AvailabilityOfEntriesOfLedger.java
@@ -178,14 +178,14 @@ public class AvailabilityOfEntriesOfLedger {
 
     public AvailabilityOfEntriesOfLedger(PrimitiveIterator.OfLong 
entriesOfLedgerItr) {
         while (entriesOfLedgerItr.hasNext()) {
-            
this.addEntryToAvailabileEntriesOfLedger(entriesOfLedgerItr.nextLong());
+            
this.addEntryToAvailableEntriesOfLedger(entriesOfLedgerItr.nextLong());
         }
         this.closeStateOfEntriesOfALedger();
     }
 
     public AvailabilityOfEntriesOfLedger(long[] entriesOfLedger) {
         for (long entry : entriesOfLedger) {
-            this.addEntryToAvailabileEntriesOfLedger(entry);
+            this.addEntryToAvailableEntriesOfLedger(entry);
         }
         this.closeStateOfEntriesOfALedger();
     }
@@ -310,7 +310,7 @@ public class AvailabilityOfEntriesOfLedger {
         }
     }
 
-    private void addEntryToAvailabileEntriesOfLedger(long entryId) {
+    private void addEntryToAvailableEntriesOfLedger(long entryId) {
         if (!isCurSequenceInitialized()) {
             initializeCurSequence(entryId);
         } else if (isEntryExistingInCurSequence(entryId)) {
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/DiskChecker.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/DiskChecker.java
index db8d350c97..0cac7b8043 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/DiskChecker.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/DiskChecker.java
@@ -276,7 +276,7 @@ public class DiskChecker {
 
     private void validateThreshold(float diskSpaceThreshold, float 
diskSpaceWarnThreshold) {
         if (diskSpaceThreshold <= 0 || diskSpaceThreshold >= 1 || 
diskSpaceWarnThreshold - diskSpaceThreshold > 1e-6) {
-            throw new IllegalArgumentException("Disk space threashold: "
+            throw new IllegalArgumentException("Disk space threshold: "
                     + diskSpaceThreshold + " and warn threshold: " + 
diskSpaceWarnThreshold
                     + " are not valid. Should be > 0 and < 1 and 
diskSpaceThreshold >= diskSpaceWarnThreshold");
         }
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/StringUtils.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/StringUtils.java
index 1a752003ef..edbe49989d 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/StringUtils.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/StringUtils.java
@@ -22,7 +22,7 @@ import java.io.IOException;
 import org.apache.bookkeeper.proto.BookkeeperProtocol;
 
 /**
- * Provided utilites for parsing network addresses, ledger-id from node paths
+ * Provided utilities for parsing network addresses, ledger-id from node paths
  * etc.
  *
  */
@@ -163,7 +163,7 @@ public class StringUtils {
     }
 
     /**
-     * Builds string representation of teh request without extra (i.e. binary) 
data
+     * Builds string representation of the request without extra (i.e. binary) 
data
      *
      * @param request
      * @return string representation of request
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/ZkUtils.java 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/ZkUtils.java
index 6b8ef86cc3..48ea04a3f4 100644
--- a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/ZkUtils.java
+++ b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/ZkUtils.java
@@ -41,7 +41,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
- * Provided utilites for zookeeper access, etc.
+ * Provided utilities for zookeeper access, etc.
  */
 public class ZkUtils {
     private static final Logger LOG = LoggerFactory.getLogger(ZkUtils.class);
diff --git 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/SynchronizedHashMultiMap.java
 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/SynchronizedHashMultiMap.java
index 942d6da281..db7bd0bf53 100644
--- 
a/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/SynchronizedHashMultiMap.java
+++ 
b/bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/SynchronizedHashMultiMap.java
@@ -33,7 +33,7 @@ import org.apache.commons.lang3.tuple.Pair;
  *
  * <p>Implementation is aimed at storing PerChannelBookieClient completions 
when there
  * are duplicates. If the key is a pooled object, it must not exist once the 
value
- * has been removed from the map, which can happen with guava multimap 
implemenations.
+ * has been removed from the map, which can happen with guava multimap 
implementations.
  *
  * <p>With this map is implemented with pretty heavy locking, but this 
shouldn't be an
  * issue as the multimap only needs to be used in rare cases, i.e. when a user 
tries
diff --git 
a/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/HandleFailuresTest.java
 
b/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/HandleFailuresTest.java
index 8e8f5649da..d1182668e9 100644
--- 
a/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/HandleFailuresTest.java
+++ 
b/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/HandleFailuresTest.java
@@ -171,7 +171,7 @@ public class HandleFailuresTest {
     }
 
     @Test(timeout = 30000)
-    public void 
testHandlingFailuresMultipleBookieFailImmediatelyNotEnoughToReplace() throws 
Exception {
+    public void 
testHandlingFailuresMultipleBookieFailImmediatelyNotEnoughoReplace() throws 
Exception {
         MockClientContext clientCtx = MockClientContext.create();
         Versioned<LedgerMetadata> md = ClientUtil.setupLedger(clientCtx, 10L,
                                                    
LedgerMetadataBuilder.create()
@@ -197,7 +197,7 @@ public class HandleFailuresTest {
     }
 
     @Test(timeout = 30000)
-    public void 
testHandlingFailuresMultipleBookieFailAfterOneEntryNotEnoughToReplace() throws 
Exception {
+    public void 
testHandlingFailuresMultipleBookieFailAfterOneEntryNotEnoughoReplace() throws 
Exception {
         MockClientContext clientCtx = MockClientContext.create();
         Versioned<LedgerMetadata> md = ClientUtil.setupLedger(clientCtx, 10L,
                                                    
LedgerMetadataBuilder.create()
diff --git 
a/bookkeeper-server/src/test/java/org/apache/bookkeeper/util/StaticDNSResolver.java
 
b/bookkeeper-server/src/test/java/org/apache/bookkeeper/util/StaticDNSResolver.java
index 72e61212fb..07da660a87 100644
--- 
a/bookkeeper-server/src/test/java/org/apache/bookkeeper/util/StaticDNSResolver.java
+++ 
b/bookkeeper-server/src/test/java/org/apache/bookkeeper/util/StaticDNSResolver.java
@@ -73,7 +73,7 @@ public class StaticDNSResolver extends 
AbstractDNSToSwitchMapping implements Rac
     @Override
     public List<String> resolve(List<String> names) {
         if (getBookieAddressResolver() == null) {
-            // test that this istance has been properly initialized
+            // test that this instance has been properly initialized
             throw new IllegalStateException("bookieAddressResolver was not 
set");
         }
         List<String> racks = new ArrayList<String>();
diff --git a/conf/bk_server.conf b/conf/bk_server.conf
index ebedf206eb..555e92034c 100644
--- a/conf/bk_server.conf
+++ b/conf/bk_server.conf
@@ -419,14 +419,14 @@ journalDirectories=/tmp/bk-txn
 
 # @Deprecated - `sortedLedgerStorageEnabled` is deprecated in favor of using 
`ledgerStorageClass`
 # Whether sorted-ledger storage enabled (default true)
-# sortedLedgerStorageEnabled=ture
+# sortedLedgerStorageEnabled=true
 
 # Directory Bookkeeper outputs ledger snapshots
 # could define multi directories to store snapshots, separated by ','
 # For example:
 # ledgerDirectories=/tmp/bk1-data,/tmp/bk2-data
 #
-# Ideally ledger dirs and journal dir are each in a differet device,
+# Ideally ledger dirs and journal dir are each in a different device,
 # which reduce the contention between random i/o and sequential write.
 # It is possible to run with a single disk, but performance will be 
significantly lower.
 ledgerDirectories=/tmp/bk-data
@@ -636,7 +636,7 @@ gcEntryLogMetadataCacheEnabled=false
 
 # For each ledger dir, maximum disk space which can be used.
 # Default is 0.95f. i.e. 95% of disk can be used at most after which nothing 
will
-# be written to that partition. If all ledger dir partions are full, then 
bookie
+# be written to that partition. If all ledger dir partitions are full, then 
bookie
 # will turn to readonly mode if 'readOnlyModeEnabled=true' is set, else it will
 # shutdown. Bookie will also suspend the minor and major compaction when usage 
threshold is exceed
 # if `isForceGCAllowWhenNoSpace` is disabled. When the usage becomes lower 
than the threshold, the major and minor
@@ -715,7 +715,7 @@ gcEntryLogMetadataCacheEnabled=false
 
 # Size of a index page in ledger cache, in bytes
 # A larger index page can improve performance writing page to disk,
-# which is efficent when you have small number of ledgers and these
+# which is efficient when you have small number of ledgers and these
 # ledgers have similar number of entries.
 # If you have large number of ledgers and each ledger has fewer entries,
 # smaller index page would improve memory usage.
@@ -728,7 +728,7 @@ gcEntryLogMetadataCacheEnabled=false
 # pageLimit*pageSize should not more than JVM max memory limitation,
 # otherwise you would got OutOfMemoryException.
 # In general, incrementing pageLimit, using smaller index page would
-# gain bettern performance in lager number of ledgers with fewer entries case
+# gain better performance in lager number of ledgers with fewer entries case
 # If pageLimit is -1, bookie server will use 1/3 of JVM memory to compute
 # the limitation of number of index pages.
 # pageLimit=-1
diff --git a/conf/zookeeper.conf b/conf/zookeeper.conf
index 89c985194c..77e3524079 100644
--- a/conf/zookeeper.conf
+++ b/conf/zookeeper.conf
@@ -58,7 +58,7 @@ maxClientCnxns=100
 electionAlg=3
 
 # Leader accepts client connections. Default value is "yes". The leader
-# machine coordinates updates. For higher update throughput at thes slight
+# machine coordinates updates. For higher update throughput at these slight
 # expense of read throughput the leader can be configured to not accept
 # clients and focus on coordination.
 leaderServes=yes
diff --git a/src/owasp-dependency-check-suppressions.xml 
b/src/owasp-dependency-check-suppressions.xml
index a141bb39be..337506b241 100644
--- a/src/owasp-dependency-check-suppressions.xml
+++ b/src/owasp-dependency-check-suppressions.xml
@@ -20,7 +20,7 @@
 
 -->
 <suppressions 
xmlns="https://jeremylong.github.io/DependencyCheck/dependency-suppression.1.3.xsd";>
-    <!-- add supressions for known vulnerabilities detected by OWASP 
Dependency Check -->
+    <!-- add suppressions for known vulnerabilities detected by OWASP 
Dependency Check -->
 
     <suppress>
         <notes>CVE-2021-43045 affects only .NET distro, see 
https://github.com/apache/avro/pull/1357</notes>
diff --git 
a/stats/bookkeeper-stats-providers/codahale-metrics-provider/src/main/java/org/apache/bookkeeper/stats/codahale/FastTimer.java
 
b/stats/bookkeeper-stats-providers/codahale-metrics-provider/src/main/java/org/apache/bookkeeper/stats/codahale/FastTimer.java
index f3a3374f35..e7a65afb3a 100644
--- 
a/stats/bookkeeper-stats-providers/codahale-metrics-provider/src/main/java/org/apache/bookkeeper/stats/codahale/FastTimer.java
+++ 
b/stats/bookkeeper-stats-providers/codahale-metrics-provider/src/main/java/org/apache/bookkeeper/stats/codahale/FastTimer.java
@@ -163,7 +163,7 @@ public class FastTimer extends Timer {
 
     /*
      * Buckets for percentiles store response times according to the 
definition in BUCKET_SPEC in the
-     * form of { numerOfBuckets , nanosecondResolutionPerBucket }.
+     * form of { numberOfBuckets , nanosecondResolutionPerBucket }.
      *
      * BUCKET_SPEC_FINE:
      * This bucket definition provides fine-grained timing for small values, 
and more coarse-grained timing
diff --git 
a/stats/bookkeeper-stats-providers/prometheus-metrics-provider/src/main/java/org/apache/bookkeeper/stats/prometheus/DataSketchesOpStatsLogger.java
 
b/stats/bookkeeper-stats-providers/prometheus-metrics-provider/src/main/java/org/apache/bookkeeper/stats/prometheus/DataSketchesOpStatsLogger.java
index 057fed65c1..1abe85088c 100644
--- 
a/stats/bookkeeper-stats-providers/prometheus-metrics-provider/src/main/java/org/apache/bookkeeper/stats/prometheus/DataSketchesOpStatsLogger.java
+++ 
b/stats/bookkeeper-stats-providers/prometheus-metrics-provider/src/main/java/org/apache/bookkeeper/stats/prometheus/DataSketchesOpStatsLogger.java
@@ -145,12 +145,12 @@ public class DataSketchesOpStatsLogger implements 
OpStatsLogger {
         current = replacement;
         replacement = local;
 
-        final DoublesUnion aggregateSuccesss = new 
DoublesUnionBuilder().build();
+        final DoublesUnion aggregateSuccess = new 
DoublesUnionBuilder().build();
         final DoublesUnion aggregateFail = new DoublesUnionBuilder().build();
         local.map.forEach((localData, b) -> {
             long stamp = localData.lock.writeLock();
             try {
-                aggregateSuccesss.update(localData.successSketch);
+                aggregateSuccess.update(localData.successSketch);
                 localData.successSketch.reset();
                 aggregateFail.update(localData.failSketch);
                 localData.failSketch.reset();
@@ -159,7 +159,7 @@ public class DataSketchesOpStatsLogger implements 
OpStatsLogger {
             }
         });
 
-        successResult = aggregateSuccesss.getResultAndReset();
+        successResult = aggregateSuccess.getResultAndReset();
         failResult = aggregateFail.getResultAndReset();
     }
 
diff --git 
a/stream/api/src/main/java/org/apache/bookkeeper/api/kv/result/DeleteResult.java
 
b/stream/api/src/main/java/org/apache/bookkeeper/api/kv/result/DeleteResult.java
index 5950c7e1e7..e49ed1f290 100644
--- 
a/stream/api/src/main/java/org/apache/bookkeeper/api/kv/result/DeleteResult.java
+++ 
b/stream/api/src/main/java/org/apache/bookkeeper/api/kv/result/DeleteResult.java
@@ -29,7 +29,7 @@ public interface DeleteResult<K, V> extends Result<K, V> {
 
     /**
      * Returns the list of previous kv pairs of the keys
-     * deleted in ths op.
+     * deleted in this op.
      *
      * @return the list of previous kv pairs.
      */
diff --git 
a/stream/clients/java/all/src/main/java/org/apache/bookkeeper/clients/StorageClientBuilder.java
 
b/stream/clients/java/all/src/main/java/org/apache/bookkeeper/clients/StorageClientBuilder.java
index f873e88a7c..572282e74d 100644
--- 
a/stream/clients/java/all/src/main/java/org/apache/bookkeeper/clients/StorageClientBuilder.java
+++ 
b/stream/clients/java/all/src/main/java/org/apache/bookkeeper/clients/StorageClientBuilder.java
@@ -67,7 +67,7 @@ public class StorageClientBuilder implements 
Supplier<StorageClient> {
      * <p>The namespace name will be used for building the stream client for 
interacting with streams
      * within the namespace.
      *
-     * @param colName colletion name
+     * @param colName collection name
      * @return stream client builder.
      * @see #build()
      */
diff --git 
a/stream/clients/java/kv/src/main/java/org/apache/bookkeeper/clients/impl/kv/PByteBufTableImpl.java
 
b/stream/clients/java/kv/src/main/java/org/apache/bookkeeper/clients/impl/kv/PByteBufTableImpl.java
index 1bda9716b3..8b84d96e14 100644
--- 
a/stream/clients/java/kv/src/main/java/org/apache/bookkeeper/clients/impl/kv/PByteBufTableImpl.java
+++ 
b/stream/clients/java/kv/src/main/java/org/apache/bookkeeper/clients/impl/kv/PByteBufTableImpl.java
@@ -53,7 +53,7 @@ import org.apache.bookkeeper.common.util.Backoff;
 import org.apache.bookkeeper.stream.proto.StreamProperties;
 
 /**
- * The default implemenation of {@link PTable}.
+ * The default implementation of {@link PTable}.
  */
 @Slf4j
 public class PByteBufTableImpl implements PTable<ByteBuf, ByteBuf> {
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKAsyncLogWriter.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKAsyncLogWriter.java
index 31cbab62d3..da7723a383 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKAsyncLogWriter.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKAsyncLogWriter.java
@@ -98,9 +98,9 @@ class BKAsyncLogWriter extends BKAbstractLogWriter implements 
AsyncLogWriter {
     }
 
     /**
-     * Last pending record in current log segment. After it is satisified, it 
would
+     * Last pending record in current log segment. After it is satisfied, it 
would
      * roll log segment.
-     * This implementation is based on the assumption that all future 
satisified in same
+     * This implementation is based on the assumption that all future 
satisfied in same
      * order future pool.
      */
     class LastPendingLogRecord extends PendingLogRecord {
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogReadHandler.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogReadHandler.java
index 777e6b1c76..167915a7f0 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogReadHandler.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogReadHandler.java
@@ -85,7 +85,7 @@ import org.slf4j.LoggerFactory;
  * <li> `readahead_worker`/notification_execution: opstats. stats on 
executions over the notifications received from
  * zookeeper.
  * <li> `readahead_worker`/metadata_reinitialization: opstats. stats on 
metadata reinitialization after receiving
- * notifcation from log segments updates.
+ * notification from log segments updates.
  * <li> `readahead_worker`/idle_reader_warn: counter. it increases each time 
the readahead worker detects itself
  * becoming idle.
  * </ul>
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogSegmentWriter.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogSegmentWriter.java
index 34c855a78f..fdf34e275d 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogSegmentWriter.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/BKLogSegmentWriter.java
@@ -1298,7 +1298,7 @@ class BKLogSegmentWriter implements LogSegmentWriter, 
AddCallback, Runnable, Siz
                 }
             }
 
-            // update last dlsn before satisifying future
+            // update last dlsn before satisfying future
             if (BKException.Code.OK == transmitResultUpdater.get(this)) {
                 DLSN lastDLSNInPacket = recordSet.finalizeTransmit(
                         logSegmentSequenceNumber, entryId);
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/DistributedLogConfiguration.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/DistributedLogConfiguration.java
index f6d84a908b..7a98fc0135 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/DistributedLogConfiguration.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/DistributedLogConfiguration.java
@@ -782,7 +782,7 @@ public class DistributedLogConfiguration extends 
CompositeConfiguration {
     //
 
     /**
-     * Get BK's zookeeper session timout in milliseconds.
+     * Get BK's zookeeper session timeout in milliseconds.
      *
      * <p>This is the session timeout applied for zookeeper client used by 
bookkeeper client.
      * Use {@link #getZKSessionTimeoutMilliseconds()} for zookeeper client used
@@ -1399,7 +1399,7 @@ public class DistributedLogConfiguration extends 
CompositeConfiguration {
      * Get timeout for shutting down schedulers in dl manager, in milliseconds.
      * By default, it is 5 seconds.
      *
-     * @return timeout for shutting down schedulers in dl manager, in 
miliseconds.
+     * @return timeout for shutting down schedulers in dl manager, in 
milliseconds.
      */
     public int getSchedulerShutdownTimeoutMs() {
         return getInt(BKDL_SCHEDULER_SHUTDOWN_TIMEOUT_MS, 
BKDL_SCHEDULER_SHUTDOWN_TIMEOUT_MS_DEFAULT);
@@ -1647,7 +1647,7 @@ public class DistributedLogConfiguration extends 
CompositeConfiguration {
      * </ul>
      * By default it is 1.
      *
-     * @return log segment name verison.
+     * @return log segment name version.
      */
     public int getLogSegmentNameVersion() {
         return getInt(BKDL_LOGSEGMENT_NAME_VERSION, 
BKDL_LOGSEGMENT_NAME_VERSION_DEFAULT);
@@ -3264,7 +3264,7 @@ public class DistributedLogConfiguration extends 
CompositeConfiguration {
     }
 
     /**
-     * Enable check existence of a log if quering local cache of a federated 
namespace missed.
+     * Enable check existence of a log if querying local cache of a federated 
namespace missed.
      *
      * @param enabled
      *          flag to enable/disable this feature.
@@ -3585,7 +3585,7 @@ public class DistributedLogConfiguration extends 
CompositeConfiguration {
         long readerIdleWarnThresholdMs = getReaderIdleWarnThresholdMillis();
         if (readerIdleWarnThresholdMs > 0) { // NOTE: some test cases set the 
idle warn threshold to 0
             checkArgument(readerIdleWarnThresholdMs > 2 * 
getReadLACLongPollTimeout(),
-                    "Invalid configuration: ReaderIdleWarnThreshold should be 
2x larget than readLACLongPollTimeout");
+                    "Invalid configuration: ReaderIdleWarnThreshold should be 
2x larger than readLACLongPollTimeout");
         }
     }
 
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClient.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClient.java
index 91af155a46..ff23ff0782 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClient.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClient.java
@@ -212,7 +212,7 @@ public class ZooKeeperClient {
                     + name + " failed on establishing zookeeper connection", 
ioe);
         }
 
-        // This indicates that the client was explictly closed
+        // This indicates that the client was explicitly closed
         if (closed) {
             throw new ZooKeeperConnectionException("Client " + name + " has 
already been closed");
         }
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClientBuilder.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClientBuilder.java
index 755cd82466..716cbc6e01 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClientBuilder.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/ZooKeeperClientBuilder.java
@@ -51,8 +51,8 @@ public class ZooKeeperClientBuilder {
     private String name = "default";
     // sessionTimeoutMs
     private int sessionTimeoutMs = -1;
-    // conectionTimeoutMs
-    private int conectionTimeoutMs = -1;
+    // connectionTimeoutMs
+    private int connectionTimeoutMs = -1;
     // zkServers
     private String zkServers = null;
     // retry policy
@@ -92,8 +92,8 @@ public class ZooKeeperClientBuilder {
      */
     public synchronized ZooKeeperClientBuilder sessionTimeoutMs(int 
sessionTimeoutMs) {
         this.sessionTimeoutMs = sessionTimeoutMs;
-        if (this.conectionTimeoutMs <= 0) {
-            this.conectionTimeoutMs = 2 * sessionTimeoutMs;
+        if (this.connectionTimeoutMs <= 0) {
+            this.connectionTimeoutMs = 2 * sessionTimeoutMs;
         }
         return this;
     }
@@ -116,7 +116,7 @@ public class ZooKeeperClientBuilder {
      * @return builder
      */
     public synchronized ZooKeeperClientBuilder connectionTimeoutMs(int 
connectionTimeoutMs) {
-        this.conectionTimeoutMs = connectionTimeoutMs;
+        this.connectionTimeoutMs = connectionTimeoutMs;
         return this;
     }
 
@@ -191,8 +191,8 @@ public class ZooKeeperClientBuilder {
 
     private void validateParameters() {
         checkNotNull(zkServers, "No zk servers provided.");
-        checkArgument(conectionTimeoutMs > 0,
-                "Invalid connection timeout : %d", conectionTimeoutMs);
+        checkArgument(connectionTimeoutMs > 0,
+                "Invalid connection timeout : %d", connectionTimeoutMs);
         checkArgument(sessionTimeoutMs > 0,
                 "Invalid session timeout : %d", sessionTimeoutMs);
         checkNotNull(statsLogger, "No stats logger provided.");
@@ -222,7 +222,7 @@ public class ZooKeeperClientBuilder {
         return new ZooKeeperClient(
                 name,
                 sessionTimeoutMs,
-                conectionTimeoutMs,
+                connectionTimeoutMs,
                 zkServers,
                 retryPolicy,
                 statsLogger,
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/api/namespace/Namespace.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/api/namespace/Namespace.java
index 1b2a7873e2..f018d8ce0a 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/api/namespace/Namespace.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/api/namespace/Namespace.java
@@ -139,7 +139,7 @@ public interface Namespace extends AutoCloseable{
      *
      * <p>This method allows the caller to override global configuration 
settings by
      * supplying log configuration overrides. Log config overrides come in two 
flavors,
-     * static and dynamic. Static config never changes in the lifecyle of 
<code>DistributedLogManager</code>,
+     * static and dynamic. Static config never changes in the lifecycle of 
<code>DistributedLogManager</code>,
      * dynamic config changes by reloading periodically and safe to access 
from any context.</p>
      *
      * @param logName
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/acl/ZKAccessControlManager.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/acl/ZKAccessControlManager.java
index 9ca3efc6cf..5906226407 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/acl/ZKAccessControlManager.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/acl/ZKAccessControlManager.java
@@ -185,7 +185,7 @@ public class ZKAccessControlManager implements 
AccessControlManager, Watcher {
                                     @Override
                                     public void onSuccess(ZKAccessControl 
accessControl) {
                                         streamEntries.put(streamName, 
accessControl);
-                                        logger.info("Added overrided access 
control for stream {} : {}",
+                                        logger.info("Added override access 
control for stream {} : {}",
                                                 streamName, 
accessControl.getAccessControlEntry());
                                         complete();
                                     }
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/federated/FederatedZKLogMetadataStore.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/federated/FederatedZKLogMetadataStore.java
index 028d329e40..79a746e743 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/federated/FederatedZKLogMetadataStore.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/impl/federated/FederatedZKLogMetadataStore.java
@@ -139,7 +139,7 @@ public class FederatedZKLogMetadataStore
                     try {
                         oldLogs = FutureUtils.result(logsFuture);
                     } catch (Exception e) {
-                        logger.error("Unexpected exception when getting logs 
from a satisified future of {} : ",
+                        logger.error("Unexpected exception when getting logs 
from a satisfied future of {} : ",
                                 uri, e);
                     }
                     logsFuture = new CompletableFuture<Set<String>>();
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKDistributedLock.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKDistributedLock.java
index 4d4c499eeb..3fc32d54c3 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKDistributedLock.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKDistributedLock.java
@@ -313,7 +313,7 @@ public class ZKDistributedLock implements LockListener, 
DistributedLock {
     /**
      * Check if lock is held.
      * If not, error out and do not reacquire. Use this in cases where there 
are many waiters by default
-     * and reacquire is unlikley to succeed.
+     * and reacquire is unlikely to succeed.
      *
      * @throws LockingException     if the lock attempt fails
      */
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKSessionLock.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKSessionLock.java
index 7d7a292681..a0ce6b5b9f 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKSessionLock.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/lock/ZKSessionLock.java
@@ -74,7 +74,7 @@ import org.slf4j.LoggerFactory;
  * 1. prepare: create a sequential znode to identify the lock.
  * 2. check lock waiters: get all lock waiters to check after prepare. if it 
is the first waiter, claim the ownership;
  *    if it is not the first waiter, but first waiter was itself (same client 
id and same session id)
- *    claim the ownership too; otherwise, it would set watcher on its sibling 
and wait it to disappared.
+ *    claim the ownership too; otherwise, it would set watcher on its sibling 
and wait it to disappeared.
  * </p>
  *
  * <pre>
@@ -187,7 +187,7 @@ class ZKSessionLock implements SessionLock {
     }
 
     /**
-     * Convenience class for state management. Provide debuggability features 
by tracing unxpected state
+     * Convenience class for state management. Provide debuggability features 
by tracing unexpected state
      * transitions.
      */
     static class StateManagement {
@@ -860,7 +860,7 @@ class ZKSessionLock implements SessionLock {
     CompletableFuture<Void> asyncUnlock(final Throwable cause) {
         final CompletableFuture<Void> promise = new CompletableFuture<Void>();
 
-        // Use lock executor here rather than lock action, because we want 
this opertaion to be applied
+        // Use lock executor here rather than lock action, because we want 
this operation to be applied
         // whether the epoch has changed or not. The member node is 
EPHEMERAL_SEQUENTIAL so there's no
         // risk of an ABA problem where we delete and recreate a node and then 
delete it again here.
         lockStateExecutor.executeOrdered(lockPath, () -> {
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/logsegment/LogSegmentEntryReader.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/logsegment/LogSegmentEntryReader.java
index decae9a850..2ec7445466 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/logsegment/LogSegmentEntryReader.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/logsegment/LogSegmentEntryReader.java
@@ -84,7 +84,7 @@ public interface LogSegmentEntryReader extends AsyncCloseable 
{
      *  <p><i>numEntries</i> will be best-effort.
      *
      * @param numEntries num entries to read from current log segment
-     * @return A promise that when satisified will contain a non-empty list of 
entries with their content.
+     * @return A promise that when satisfied will contain a non-empty list of 
entries with their content.
      * @throw {@link 
org.apache.distributedlog.exceptions.EndOfLogSegmentException} when
      *          read entries beyond the end of a <i>closed</i> log segment.
      */
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/namespace/NamespaceWatcher.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/namespace/NamespaceWatcher.java
index 49da3d4f75..e977040a46 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/namespace/NamespaceWatcher.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/namespace/NamespaceWatcher.java
@@ -53,7 +53,7 @@ public abstract class NamespaceWatcher {
 
     /**
      * Watch the namespace changes. It would be triggered each time
-     * a namspace listener is added. The implementation should handle
+     * a namespace listener is added. The implementation should handle
      * this.
      */
     protected abstract void watchNamespaceChanges();
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/tools/DistributedLogTool.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/tools/DistributedLogTool.java
index 9af7f6dff3..6588fc27c8 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/tools/DistributedLogTool.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/tools/DistributedLogTool.java
@@ -916,8 +916,8 @@ import org.slf4j.LoggerFactory;
             super("show", "show metadata of a given stream and list segments");
             options.addOption("ns", "no-log-segments", false, "Do not list log 
segment metadata");
             options.addOption("lp", "placement-stats", false, "Show ensemble 
placement stats");
-            options.addOption("fl", "first-ledger", true, "First log sement 
no");
-            options.addOption("ll", "last-ledger", true, "Last log sement no");
+            options.addOption("fl", "first-ledger", true, "First log segment 
no");
+            options.addOption("ll", "last-ledger", true, "Last log segment 
no");
         }
 
         @Override
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/DefaultZKOp.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/DefaultZKOp.java
index 22ae7cb9fd..75dab1650e 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/DefaultZKOp.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/DefaultZKOp.java
@@ -24,7 +24,7 @@ import org.apache.zookeeper.OpResult;
 
 
 /**
- * Default zookeeper operation. No action on commiting or aborting.
+ * Default zookeeper operation. No action on committing or aborting.
  */
 public class DefaultZKOp extends ZKOp {
 
diff --git 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/ZKWatcherManager.java
 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/ZKWatcherManager.java
index 1aabd59636..afd06c2f2a 100644
--- 
a/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/ZKWatcherManager.java
+++ 
b/stream/distributedlog/core/src/main/java/org/apache/distributedlog/zk/ZKWatcherManager.java
@@ -82,9 +82,9 @@ public class ZKWatcherManager implements Watcher {
     private final StatsLogger statsLogger;
     // Gauges and their labels
     private final Gauge<Number> totalWatchesGauge;
-    private static final String totalWatchesGauageLabel = "total_watches";
+    private static final String totalWatchesGaugeLabel = "total_watches";
     private final Gauge<Number> numChildWatchesGauge;
-    private static final String numChildWatchesGauageLabel = 
"num_child_watches";
+    private static final String numChildWatchesGaugeLabel = 
"num_child_watches";
 
     protected final ConcurrentMap<String, Set<Watcher>> childWatches;
     protected final LongAdder allWatchesGauge;
@@ -112,7 +112,7 @@ public class ZKWatcherManager implements Watcher {
                 return allWatchesGauge.sum();
             }
         };
-        this.statsLogger.registerGauge(totalWatchesGauageLabel, 
totalWatchesGauge);
+        this.statsLogger.registerGauge(totalWatchesGaugeLabel, 
totalWatchesGauge);
 
         numChildWatchesGauge = new Gauge<Number>() {
             @Override
@@ -126,7 +126,7 @@ public class ZKWatcherManager implements Watcher {
             }
         };
 
-        this.statsLogger.registerGauge(numChildWatchesGauageLabel, 
numChildWatchesGauge);
+        this.statsLogger.registerGauge(numChildWatchesGaugeLabel, 
numChildWatchesGauge);
     }
 
     public Watcher registerChildWatcher(String path, Watcher watcher) {
@@ -169,8 +169,8 @@ public class ZKWatcherManager implements Watcher {
     }
 
     public void unregisterGauges() {
-        this.statsLogger.unregisterGauge(totalWatchesGauageLabel, 
totalWatchesGauge);
-        this.statsLogger.unregisterGauge(numChildWatchesGauageLabel, 
numChildWatchesGauge);
+        this.statsLogger.unregisterGauge(totalWatchesGaugeLabel, 
totalWatchesGauge);
+        this.statsLogger.unregisterGauge(numChildWatchesGaugeLabel, 
numChildWatchesGauge);
     }
 
     @Override
diff --git a/stream/distributedlog/core/src/test/resources/bk_server.conf 
b/stream/distributedlog/core/src/test/resources/bk_server.conf
index 0d3cd56d4c..f094ef36b7 100644
--- a/stream/distributedlog/core/src/test/resources/bk_server.conf
+++ b/stream/distributedlog/core/src/test/resources/bk_server.conf
@@ -94,7 +94,7 @@ openFileLimit=20000
 
 # Size of a index page in ledger cache, in bytes
 # A larger index page can improve performance writing page to disk,
-# which is efficent when you have small number of ledgers and these
+# which is efficient when you have small number of ledgers and these
 # ledgers have similar number of entries.
 # If you have large number of ledgers and each ledger has fewer entries,
 # smaller index page would improve memory usage.
@@ -107,7 +107,7 @@ pageSize=8192
 # pageLimit*pageSize should not more than JVM max memory limitation,
 # otherwise you would got OutOfMemoryException.
 # In general, incrementing pageLimit, using smaller index page would
-# gain bettern performance in lager number of ledgers with fewer entries case
+# gain better performance in lager number of ledgers with fewer entries case
 # If pageLimit is -1, bookie server will use 1/3 of JVM memory to compute
 # the limitation of number of index pages.
 pageLimit=131072
diff --git 
a/stream/distributedlog/protocol/src/main/java/org/apache/distributedlog/LogRecord.java
 
b/stream/distributedlog/protocol/src/main/java/org/apache/distributedlog/LogRecord.java
index 4de2249677..7101420675 100644
--- 
a/stream/distributedlog/protocol/src/main/java/org/apache/distributedlog/LogRecord.java
+++ 
b/stream/distributedlog/protocol/src/main/java/org/apache/distributedlog/LogRecord.java
@@ -509,7 +509,7 @@ public class LogRecord {
                 try {
                     long metadata = in.readLong();
                     // Reading the first 8 bytes positions the record stream 
on the correct log record
-                    // By this time all components of the DLSN are valid so 
this is where we shoud
+                    // By this time all components of the DLSN are valid so 
this is where we should
                     // retrieve the currentDLSN and advance to the next
                     // Given that there are 20 bytes following the read 
position of the previous call
                     // to readLong, we should not have moved ahead in the 
stream.
diff --git a/stream/proto/src/main/proto/stream.proto 
b/stream/proto/src/main/proto/stream.proto
index b16bd22f29..accab87f2d 100644
--- a/stream/proto/src/main/proto/stream.proto
+++ b/stream/proto/src/main/proto/stream.proto
@@ -83,7 +83,7 @@ message ParentRangesList {
 // Stream
 //
 
-// since stream and table are similar and exchangable,
+// since stream and table are similar and exchangeable,
 // from the beginning, we shared the metadata management
 // between streams and tables and distinguish them using
 // a flag that recorded in metadata.
diff --git 
a/stream/server/src/main/java/org/apache/bookkeeper/stream/server/service/RegistrationStateService.java
 
b/stream/server/src/main/java/org/apache/bookkeeper/stream/server/service/RegistrationStateService.java
index afe33accc0..8d5ad8b007 100644
--- 
a/stream/server/src/main/java/org/apache/bookkeeper/stream/server/service/RegistrationStateService.java
+++ 
b/stream/server/src/main/java/org/apache/bookkeeper/stream/server/service/RegistrationStateService.java
@@ -88,7 +88,7 @@ public class RegistrationStateService
                 log.info("Successfully register myself under registration path 
{}/{}",
                     regServiceProvider.getRegistrationPath(), 
NetUtils.endpointToString(myEndpoint));
             } catch (Exception e) {
-                throw new RuntimeException("Failed to intiailize a 
registration state service", e);
+                throw new RuntimeException("Failed to initialize a 
registration state service", e);
             }
         }
     }
diff --git 
a/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/mvcc/MVCCRecord.java
 
b/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/mvcc/MVCCRecord.java
index 4e071c3625..c8a2c0d983 100644
--- 
a/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/mvcc/MVCCRecord.java
+++ 
b/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/mvcc/MVCCRecord.java
@@ -33,7 +33,7 @@ import org.apache.bookkeeper.common.util.Recycled;
 import org.apache.bookkeeper.stream.proto.kv.store.ValueType;
 
 /**
- * An object represents the mvcc metdata and value for a given key.
+ * An object represents the mvcc metadata and value for a given key.
  */
 @Data
 @Setter
diff --git 
a/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/rocksdb/checkpoint/CheckpointInfo.java
 
b/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/rocksdb/checkpoint/CheckpointInfo.java
index 49d06c956c..f38bf28b38 100644
--- 
a/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/rocksdb/checkpoint/CheckpointInfo.java
+++ 
b/stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/rocksdb/checkpoint/CheckpointInfo.java
@@ -38,7 +38,7 @@ import 
org.apache.bookkeeper.stream.proto.kv.store.CheckpointMetadata;
 
 
 /**
- * CheckpointInfo encapsulated information and operatation for a checkpoint.
+ * CheckpointInfo encapsulated information and operation for a checkpoint.
  */
 @Slf4j
 public class CheckpointInfo implements Comparable<CheckpointInfo> {
diff --git 
a/stream/storage/api/src/main/java/org/apache/bookkeeper/stream/storage/api/cluster/ClusterInitializer.java
 
b/stream/storage/api/src/main/java/org/apache/bookkeeper/stream/storage/api/cluster/ClusterInitializer.java
index 5808186bbe..f938dee7f7 100644
--- 
a/stream/storage/api/src/main/java/org/apache/bookkeeper/stream/storage/api/cluster/ClusterInitializer.java
+++ 
b/stream/storage/api/src/main/java/org/apache/bookkeeper/stream/storage/api/cluster/ClusterInitializer.java
@@ -31,10 +31,10 @@ public interface ClusterInitializer {
      * return <tt>true</tt> if they understand the subprotocol specified in 
the URI and
      * <tt>false</tt> if they do not.
      *
-     * @param metatadataServiceUri the metadata service uri
+     * @param metadataServiceUri the metadata service uri
      * @return <tt>true</tt> if the implementation understands the given URI; 
<tt>false</tt> otherwise.
      */
-    boolean acceptsURI(URI metatadataServiceUri);
+    boolean acceptsURI(URI metadataServiceUri);
 
     /**
      * Create a new cluster under metadata service specified by {@code 
metadataServiceUri}.
diff --git 
a/stream/storage/impl/src/main/java/org/apache/bookkeeper/stream/storage/impl/cluster/ZkClusterMetadataStore.java
 
b/stream/storage/impl/src/main/java/org/apache/bookkeeper/stream/storage/impl/cluster/ZkClusterMetadataStore.java
index 676da4e339..0d2fd45c47 100644
--- 
a/stream/storage/impl/src/main/java/org/apache/bookkeeper/stream/storage/impl/cluster/ZkClusterMetadataStore.java
+++ 
b/stream/storage/impl/src/main/java/org/apache/bookkeeper/stream/storage/impl/cluster/ZkClusterMetadataStore.java
@@ -98,7 +98,7 @@ public class ZkClusterMetadataStore implements 
ClusterMetadataStore {
         ClusterMetadata metadata = ClusterMetadata.newBuilder()
             .setNumStorageContainers(numStorageContainers)
             .build();
-        ClusterAssignmentData assigmentData = 
ClusterAssignmentData.newBuilder()
+        ClusterAssignmentData assignmentData = 
ClusterAssignmentData.newBuilder()
             .build();
         try {
             // we are using dlog for the storage backend, so we need to 
initialize the dlog namespace
@@ -110,7 +110,7 @@ public class ZkClusterMetadataStore implements 
ClusterMetadataStore {
                 .forOperations(
                     client.transactionOp().create().forPath(zkRootPath),
                     
client.transactionOp().create().forPath(zkClusterMetadataPath, 
metadata.toByteArray()),
-                    
client.transactionOp().create().forPath(zkClusterAssignmentPath, 
assigmentData.toByteArray()),
+                    
client.transactionOp().create().forPath(zkClusterAssignmentPath, 
assignmentData.toByteArray()),
                     
client.transactionOp().create().forPath(getServersPath(zkRootPath)),
                     
client.transactionOp().create().forPath(getWritableServersPath(zkRootPath)),
                     
client.transactionOp().create().forPath(getStoragePath(zkRootPath), 
dlogMetadata.serialize()));
@@ -141,8 +141,8 @@ public class ZkClusterMetadataStore implements 
ClusterMetadataStore {
     }
 
     @Override
-    public void updateClusterAssignmentData(ClusterAssignmentData 
assigmentData) {
-        byte[] data = assigmentData.toByteArray();
+    public void updateClusterAssignmentData(ClusterAssignmentData 
assignmentData) {
+        byte[] data = assignmentData.toByteArray();
         try {
             client.setData().forPath(zkClusterAssignmentPath, data);
         } catch (Exception e) {
diff --git 
a/tools/perf/src/main/java/org/apache/bookkeeper/tools/perf/table/PerfClient.java
 
b/tools/perf/src/main/java/org/apache/bookkeeper/tools/perf/table/PerfClient.java
index f8d7c2d02d..20b9422f21 100644
--- 
a/tools/perf/src/main/java/org/apache/bookkeeper/tools/perf/table/PerfClient.java
+++ 
b/tools/perf/src/main/java/org/apache/bookkeeper/tools/perf/table/PerfClient.java
@@ -144,7 +144,7 @@ public class PerfClient implements Runnable {
             names = {
                 "-b", "--benchmarks"
             },
-            description = "List of benchamrks to run")
+            description = "List of benchmarks to run")
         public List<String> benchmarks;
 
     }

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