Added: dev/hbase/2.5.3RC1/CHANGES.md
==============================================================================
--- dev/hbase/2.5.3RC1/CHANGES.md (added)
+++ dev/hbase/2.5.3RC1/CHANGES.md Sun Jan 29 20:52:49 2023
@@ -0,0 +1,8156 @@
+
+<!---
+# 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.
+-->
+# HBASE Changelog
+
+## Release 2.5.3 - Unreleased (as of 2023-01-29)
+
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27506](https://issues.apache.org/jira/browse/HBASE-27506) | 
Optionally disable sorting directories by size in CleanerChore |  Minor | . |
+| [HBASE-27503](https://issues.apache.org/jira/browse/HBASE-27503) | Support 
replace \<FILE-PATH\> in GC\_OPTS for ZGC |  Minor | scripts |
+| [HBASE-27512](https://issues.apache.org/jira/browse/HBASE-27512) | Add file 
\`.git-blame-ignore-revs\` for \`git blame\` |  Trivial | . |
+| [HBASE-27487](https://issues.apache.org/jira/browse/HBASE-27487) | Slow meta 
can create pathological feedback loop with multigets |  Major | . |
+| [HBASE-27466](https://issues.apache.org/jira/browse/HBASE-27466) | hbase 
client metrics per user specified identity on hconnections. |  Major | Client |
+| [HBASE-27490](https://issues.apache.org/jira/browse/HBASE-27490) | Locating 
regions for all actions of batch requests can exceed operation timeout |  Major 
| . |
+| [HBASE-22924](https://issues.apache.org/jira/browse/HBASE-22924) | GitHUB PR 
job should use when clause to filter to just PRs. |  Minor | build, community |
+| [HBASE-27491](https://issues.apache.org/jira/browse/HBASE-27491) | 
AsyncProcess should not clear meta cache for RejectedExecutionException |  
Major | . |
+| [HBASE-27459](https://issues.apache.org/jira/browse/HBASE-27459) | Improve 
our hbase\_docker to be able to build and start standalone clusters other than 
master branch |  Major | scripts |
+| [HBASE-27530](https://issues.apache.org/jira/browse/HBASE-27530) | Fix 
comment syntax errors |  Trivial | documentation |
+| [HBASE-27253](https://issues.apache.org/jira/browse/HBASE-27253) | Make slow 
log configs updatable with configuration observer |  Major | . |
+| [HBASE-27540](https://issues.apache.org/jira/browse/HBASE-27540) | Client 
metrics for success/failure counts. |  Major | Client |
+| [HBASE-27233](https://issues.apache.org/jira/browse/HBASE-27233) | Read 
blocks into off-heap if caching is disabled for read |  Major | . |
+| [HBASE-27531](https://issues.apache.org/jira/browse/HBASE-27531) | 
AsyncRequestFutureImpl unnecessarily clears meta cache for full server |  Major 
| . |
+| [HBASE-27565](https://issues.apache.org/jira/browse/HBASE-27565) | Make the 
initial corePoolSize configurable for ChoreService |  Major | conf |
+| [HBASE-27529](https://issues.apache.org/jira/browse/HBASE-27529) | Provide 
RS coproc ability to attach WAL extended attributes to mutations at replication 
sink |  Major | Coprocessors, Replication |
+| [HBASE-27562](https://issues.apache.org/jira/browse/HBASE-27562) | Publish 
SBOM artifacts |  Major | java |
+| [HBASE-27583](https://issues.apache.org/jira/browse/HBASE-27583) | Remove -X 
option when building protoc check in nightly and pre commit job |  Major | 
jenkins, scripts |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27463](https://issues.apache.org/jira/browse/HBASE-27463) | Reset 
sizeOfLogQueue when refresh replication source |  Minor | Replication |
+| [HBASE-27510](https://issues.apache.org/jira/browse/HBASE-27510) | Should 
use 'org.apache.hbase.thirdparty.io.netty.tryReflectionSetAccessible' |  Major 
| . |
+| [HBASE-27484](https://issues.apache.org/jira/browse/HBASE-27484) | FNFE on 
StoreFileScanner after a flush followed by a compaction |  Major | . |
+| [HBASE-27494](https://issues.apache.org/jira/browse/HBASE-27494) | Client 
meta cache clear by exception metrics are missing some cases |  Minor | . |
+| [HBASE-27519](https://issues.apache.org/jira/browse/HBASE-27519) | Another 
case for FNFE on StoreFileScanner after a flush followed by a compaction |  
Major | . |
+| [HBASE-27498](https://issues.apache.org/jira/browse/HBASE-27498) | Observed 
lot of threads blocked in ConnectionImplementation.getKeepAliveMasterService |  
Major | Client |
+| [HBASE-27524](https://issues.apache.org/jira/browse/HBASE-27524) | Fix 
python requirements problem |  Major | scripts, security |
+| [HBASE-27390](https://issues.apache.org/jira/browse/HBASE-27390) | 
getClusterMetrics NullPointerException when ServerTask status null |  Major | . 
|
+| [HBASE-27485](https://issues.apache.org/jira/browse/HBASE-27485) | 
HBaseTestingUtility minicluster requires log4j2 |  Major | test |
+| [HBASE-27566](https://issues.apache.org/jira/browse/HBASE-27566) | Bump 
gitpython from 3.1.29 to 3.1.30 in /dev-support |  Major | scripts, security |
+| [HBASE-27560](https://issues.apache.org/jira/browse/HBASE-27560) | 
CatalogJanitor consistencyCheck cannot report the hole on last region if next 
table is disabled in meta |  Minor | hbck2 |
+| [HBASE-27563](https://issues.apache.org/jira/browse/HBASE-27563) | 
ChaosMonkey sometimes generates invalid boundaries for random item selection |  
Minor | integration tests |
+| [HBASE-27561](https://issues.apache.org/jira/browse/HBASE-27561) | 
hbase.master.port is ignored in processing of hbase.masters |  Minor | Client |
+| [HBASE-27564](https://issues.apache.org/jira/browse/HBASE-27564) | Add 
default encryption type for MiniKDC to fix failed tests on JDK11+ |  Major | . |
+| [HBASE-27579](https://issues.apache.org/jira/browse/HBASE-27579) | 
CatalogJanitor can cause data loss due to errors during cleanMergeRegion |  
Blocker | . |
+| [HBASE-27589](https://issues.apache.org/jira/browse/HBASE-27589) | Rename 
TestConnectionImplementation in hbase-it to fix javadoc failure |  Blocker | 
Client, documentation |
+| [HBASE-27592](https://issues.apache.org/jira/browse/HBASE-27592) | Update 
hadoop netty version for hadoop-2.0 profile |  Major | . |
+| [HBASE-27586](https://issues.apache.org/jira/browse/HBASE-27586) | Bump up 
commons-codec to 1.15 |  Major | dependencies, security |
+| [HBASE-27585](https://issues.apache.org/jira/browse/HBASE-27585) | Bump up 
jruby to 9.3.9.0 and related joni and jcodings to 2.1.43 and 1.0.57 
respectively |  Major | jruby, security |
+| [HBASE-27547](https://issues.apache.org/jira/browse/HBASE-27547) | Close 
store file readers after region warmup |  Major | regionserver |
+| [HBASE-26967](https://issues.apache.org/jira/browse/HBASE-26967) | 
FilterList with FuzzyRowFilter and SingleColumnValueFilter evaluated with 
operator MUST\_PASS\_ONE doesn't work as expected |  Critical | Filters |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27557](https://issues.apache.org/jira/browse/HBASE-27557) | [JDK17] 
Update shade plugin version |  Minor | . |
+| [HBASE-25516](https://issues.apache.org/jira/browse/HBASE-25516) | [JDK17] 
reflective access Field.class.getDeclaredField("modifiers") not supported |  
Major | Filesystem Integration |
+| [HBASE-27591](https://issues.apache.org/jira/browse/HBASE-27591) | [JDK17] 
Fix failure TestImmutableScan#testScanCopyConstructor |  Minor | . |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27513](https://issues.apache.org/jira/browse/HBASE-27513) | Modify 
README.txt to mention how to contribue |  Major | community |
+| [HBASE-27548](https://issues.apache.org/jira/browse/HBASE-27548) | Bump 
jettison from 1.5.1 to 1.5.2 |  Major | dependabot, dependencies, security |
+| [HBASE-27567](https://issues.apache.org/jira/browse/HBASE-27567) | Introduce 
ChaosMonkey Action to print HDFS Cluster status |  Minor | integration tests |
+| [HBASE-27568](https://issues.apache.org/jira/browse/HBASE-27568) | 
ChaosMonkey add support for JournalNodes |  Major | integration tests |
+| [HBASE-27575](https://issues.apache.org/jira/browse/HBASE-27575) | Bump 
future from 0.18.2 to 0.18.3 in /dev-support |  Minor | . |
+| [HBASE-27578](https://issues.apache.org/jira/browse/HBASE-27578) | Upgrade 
hbase-thirdparty to 4.1.4 |  Blocker | dependencies, security |
+| [HBASE-27588](https://issues.apache.org/jira/browse/HBASE-27588) | 
"Instantiating StoreFileTracker impl" INFO level logging is too chatty |  Minor 
| . |
+
+
+## Release 2.5.2 - Unreleased (as of 2022-11-24)
+
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-26809](https://issues.apache.org/jira/browse/HBASE-26809) | Report 
client backoff time for server overloaded in ConnectionMetrics |  Major | . |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27434](https://issues.apache.org/jira/browse/HBASE-27434) | Use 
$revision as placeholder for maven version to make it easier to control the 
version from command line |  Major | build, pom |
+| [HBASE-27167](https://issues.apache.org/jira/browse/HBASE-27167) | s390x: 
Skip tests on unsupported compression libs |  Major | build, pom |
+| [HBASE-27450](https://issues.apache.org/jira/browse/HBASE-27450) | Update 
all our python scripts to use python3 |  Major | scripts |
+| [HBASE-27414](https://issues.apache.org/jira/browse/HBASE-27414) | Search 
order for locations in  HFileLink |  Minor | Performance |
+| [HBASE-27495](https://issues.apache.org/jira/browse/HBASE-27495) | Improve 
HFileLinkCleaner to validate back reference links ahead the next traverse |  
Major | master |
+| [HBASE-27408](https://issues.apache.org/jira/browse/HBASE-27408) | Improve 
BucketAllocatorException log to always include HFile name |  Major | . |
+| [HBASE-27496](https://issues.apache.org/jira/browse/HBASE-27496) | 
Optionally limit the amount of plans executed in the Normalizer |  Minor | 
Normalizer |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27433](https://issues.apache.org/jira/browse/HBASE-27433) | 
DefaultMobStoreCompactor should delete MobStoreFile cleanly when compaction is 
failed |  Major | mob |
+| [HBASE-27440](https://issues.apache.org/jira/browse/HBASE-27440) | metrics 
method removeHistogramMetrics trigger serious memory leak |  Major | metrics, 
regionserver |
+| [HBASE-25983](https://issues.apache.org/jira/browse/HBASE-25983) | javadoc 
generation fails on openjdk-11.0.11+9 |  Major | documentation, pom |
+| [HBASE-27446](https://issues.apache.org/jira/browse/HBASE-27446) | Spotbugs 
4.7.2 report a lot of logging errors when generating report |  Major | build, 
jenkins, scripts |
+| [HBASE-27437](https://issues.apache.org/jira/browse/HBASE-27437) | 
TestHeapSize is flaky |  Major | test |
+| [HBASE-27472](https://issues.apache.org/jira/browse/HBASE-27472) | The 
personality script set wrong hadoop2 check version for branch-2 |  Major | 
jenkins, scripts |
+| [HBASE-27473](https://issues.apache.org/jira/browse/HBASE-27473) | Fix 
spotbugs warnings in hbase-rest Client.getResponseBody |  Major | REST |
+| [HBASE-27480](https://issues.apache.org/jira/browse/HBASE-27480) | Skip 
error prone for hadoop2/3 checkes in our nightly jobs |  Major | jenkins, 
scripts |
+| [HBASE-27469](https://issues.apache.org/jira/browse/HBASE-27469) | 
IllegalArgumentException is thrown by SnapshotScannerHDFSAclController when 
dropping a table |  Major | snapshots |
+| [HBASE-27379](https://issues.apache.org/jira/browse/HBASE-27379) | 
numOpenConnections metric is one less than the actual |  Minor | metrics |
+| [HBASE-27423](https://issues.apache.org/jira/browse/HBASE-27423) | Upgrade 
hbase-thirdparty to 4.1.3 and upgrade Jackson for CVE-2022-42003/42004 |  Major 
| security |
+| [HBASE-27464](https://issues.apache.org/jira/browse/HBASE-27464) | In memory 
compaction 'COMPACT' may cause data corruption when adding cells large than 
maxAlloc(default 256k) size |  Critical | in-memory-compaction |
+| [HBASE-27501](https://issues.apache.org/jira/browse/HBASE-27501) | The 
.flattened-pom.xml for some modules are not installed |  Blocker | build, pom |
+| [HBASE-27445](https://issues.apache.org/jira/browse/HBASE-27445) | result of 
DirectMemoryUtils#getDirectMemorySize may be wrong |  Minor | UI |
+| [HBASE-27504](https://issues.apache.org/jira/browse/HBASE-27504) | Remove 
duplicated config 'hbase.normalizer.merge.min\_region\_age.days' in 
hbase-default.xml |  Minor | conf |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27479](https://issues.apache.org/jira/browse/HBASE-27479) | Flaky 
Test testClone in TestTaskMonitor |  Trivial | test |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27475](https://issues.apache.org/jira/browse/HBASE-27475) | Use 
different jdks when running hadoopcheck in personality scripts |  Critical | 
jenkins, scripts |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27425](https://issues.apache.org/jira/browse/HBASE-27425) | Run flaky 
test job more often |  Minor | test |
+| [HBASE-27460](https://issues.apache.org/jira/browse/HBASE-27460) | Fix the 
hadolint errors after HBASE-27456 |  Major | scripts |
+| [HBASE-27443](https://issues.apache.org/jira/browse/HBASE-27443) | Use 
java11 in the general check of our jenkins job |  Major | build, jenkins |
+
+
+## Release 2.5.1 - 2022-10-21
+
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27314](https://issues.apache.org/jira/browse/HBASE-27314) | Make 
index block be customized and configured |  Major | . |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27159](https://issues.apache.org/jira/browse/HBASE-27159) | Emit 
source metrics for BlockCacheExpressHitPercent |  Minor | BlockCache, metrics |
+| [HBASE-27339](https://issues.apache.org/jira/browse/HBASE-27339) | Improve 
sasl connection failure log message to include server |  Minor | Client |
+| [HBASE-27365](https://issues.apache.org/jira/browse/HBASE-27365) | Minimise 
block addition failures due to no space in bucket cache writers queue by 
introducing wait time |  Major | BucketCache |
+| [HBASE-27391](https://issues.apache.org/jira/browse/HBASE-27391) | Downgrade 
ERROR log to DEBUG in ConnectionUtils.updateStats |  Major | . |
+| [HBASE-27370](https://issues.apache.org/jira/browse/HBASE-27370) | Avoid 
decompressing blocks when reading from bucket cache prefetch threads |  Major | 
. |
+| [HBASE-27361](https://issues.apache.org/jira/browse/HBASE-27361) | Add 
.flattened-pom.xml to .gitignore |  Major | build |
+| [HBASE-27224](https://issues.apache.org/jira/browse/HBASE-27224) | HFile 
tool statistic sampling produces misleading results |  Major | . |
+| [HBASE-27340](https://issues.apache.org/jira/browse/HBASE-27340) | Artifacts 
with resolved profiles |  Minor | build, pom |
+| [HBASE-27332](https://issues.apache.org/jira/browse/HBASE-27332) | Remove 
RejectedExecutionHandler for long/short compaction thread pools |  Minor | 
Compaction |
+| [HBASE-27338](https://issues.apache.org/jira/browse/HBASE-27338) | brotli 
compression lib tests fail on arm64 |  Minor | . |
+| [HBASE-27320](https://issues.apache.org/jira/browse/HBASE-27320) | hide some 
sensitive configuration information in the UI |  Minor | security, UI |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27426](https://issues.apache.org/jira/browse/HBASE-27426) | Region 
server abort with failing to list region servers. |  Major | Zookeeper |
+| [HBASE-27432](https://issues.apache.org/jira/browse/HBASE-27432) | 
TestUsersOperationsWithSecureHadoop fails affter HBASE-27411 |  Major | . |
+| [HBASE-27420](https://issues.apache.org/jira/browse/HBASE-27420) | Failure 
while connecting to zk if HBase is running in standalone mode in a container |  
Minor | Zookeeper |
+| [HBASE-27424](https://issues.apache.org/jira/browse/HBASE-27424) | Upgrade 
Jettison for CVE-2022-40149/40150 |  Major | . |
+| [HBASE-27419](https://issues.apache.org/jira/browse/HBASE-27419) | Update to 
hbase-thirdparty 4.1.2 |  Major | dependencies |
+| [HBASE-27407](https://issues.apache.org/jira/browse/HBASE-27407) | Fixing 
check for "description" request param in JMXJsonServlet.java |  Minor | metrics 
|
+| [HBASE-27409](https://issues.apache.org/jira/browse/HBASE-27409) | Fix the 
javadoc for WARCRecord |  Major | documentation |
+| [HBASE-27381](https://issues.apache.org/jira/browse/HBASE-27381) | Still 
seeing 'Stuck' in static initialization creating RegionInfo instance |  Major | 
. |
+| [HBASE-27368](https://issues.apache.org/jira/browse/HBASE-27368) | Do not 
need to throw IllegalStateException when peer is not active in 
ReplicationSource.initialize |  Major | regionserver, Replication |
+| [HBASE-27352](https://issues.apache.org/jira/browse/HBASE-27352) | Quoted 
string argument with spaces passed from command line are propagated wrongly to 
the underlying java class |  Minor | shell |
+| [HBASE-27362](https://issues.apache.org/jira/browse/HBASE-27362) | Fix some 
tests hung by CompactSplit.requestCompactionInternal ignoring 
compactionsEnabled check |  Major | Compaction |
+| [HBASE-27353](https://issues.apache.org/jira/browse/HBASE-27353) | 
opentelemetry-context jar missing at runtime causes MR jobs to fail |  Minor | 
. |
+| [HBASE-22939](https://issues.apache.org/jira/browse/HBASE-22939) | 
SpaceQuotas- Bulkload from different hdfs failed when space quotas are turned 
on. |  Major | . |
+| [HBASE-27336](https://issues.apache.org/jira/browse/HBASE-27336) | The 
region visualizer shows 'undefined' region server |  Major | master, UI |
+| [HBASE-27335](https://issues.apache.org/jira/browse/HBASE-27335) | HBase 
shell hang for a minute when quiting |  Major | shell |
+| [HBASE-27152](https://issues.apache.org/jira/browse/HBASE-27152) | Under 
compaction mark may leak |  Major | Compaction |
+| [HBASE-25922](https://issues.apache.org/jira/browse/HBASE-25922) | Disabled 
sanity checks ignored on snapshot restore |  Minor | conf, snapshots |
+| [HBASE-27246](https://issues.apache.org/jira/browse/HBASE-27246) | 
RSGroupMappingScript#getRSGroup has thread safety problem |  Major | rsgroup |
+| [HBASE-25166](https://issues.apache.org/jira/browse/HBASE-25166) | 
MobFileCompactionChore is closing the master's shared cluster connection |  
Major | master |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27360](https://issues.apache.org/jira/browse/HBASE-27360) | The trace 
related assertions are flaky for async client tests |  Major | test, tracing |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27421](https://issues.apache.org/jira/browse/HBASE-27421) | Bump 
spotless plugin to 2.27.2 and reimplement the 'Remove unhelpful javadoc stubs' 
rule |  Major | documentation, pom |
+| [HBASE-27401](https://issues.apache.org/jira/browse/HBASE-27401) | Clean up 
current broken 'n's in our javadoc |  Major | documentation |
+| [HBASE-27403](https://issues.apache.org/jira/browse/HBASE-27403) | Remove 
'Remove unhelpful javadoc stubs' spotless rule for now |  Major | 
documentation, pom |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27431](https://issues.apache.org/jira/browse/HBASE-27431) | Remove 
TestRemoteTable.testLimitedScan |  Trivial | REST, test |
+| [HBASE-27411](https://issues.apache.org/jira/browse/HBASE-27411) |  Update 
and clean up bcprov-jdk15on dependency |  Minor | build |
+| [HBASE-27372](https://issues.apache.org/jira/browse/HBASE-27372) | Update 
java versions in our Dockerfiles |  Major | build, scripts |
+| [HBASE-27373](https://issues.apache.org/jira/browse/HBASE-27373) | Fix new 
spotbugs warnings after upgrading spotbugs to 4.7.2 |  Major | . |
+| [HBASE-27371](https://issues.apache.org/jira/browse/HBASE-27371) | Bump 
spotbugs version |  Major | build, pom |
+
+
+## Release 2.5.0 - Unreleased (as of 2022-08-23)
+
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27104](https://issues.apache.org/jira/browse/HBASE-27104) | Add a 
tool command list\_unknownservers |  Major | master |
+| [HBASE-27129](https://issues.apache.org/jira/browse/HBASE-27129) | Add a 
config that allows us to configure region-level storage policies |  Major | 
regionserver |
+| [HBASE-27028](https://issues.apache.org/jira/browse/HBASE-27028) | Add a 
shell command  for flushing master local region |  Minor | shell |
+| [HBASE-26826](https://issues.apache.org/jira/browse/HBASE-26826) | Backport 
StoreFileTracker (HBASE-26067, HBASE-26584, and others) to branch-2.5 |  Major 
| Operability, regionserver |
+| [HBASE-26342](https://issues.apache.org/jira/browse/HBASE-26342) | Support 
custom paths of independent configuration and pool for hfile cleaner |  Major | 
master |
+| [HBASE-27018](https://issues.apache.org/jira/browse/HBASE-27018) | Add a 
tool command list\_liveservers |  Major | . |
+| [HBASE-26617](https://issues.apache.org/jira/browse/HBASE-26617) | Use 
spotless to reduce the pain on fixing checkstyle issues |  Major | build, 
community |
+| [HBASE-26959](https://issues.apache.org/jira/browse/HBASE-26959) | Brotli 
compression support |  Minor | . |
+| [HBASE-25865](https://issues.apache.org/jira/browse/HBASE-25865) | Visualize 
current state of region assignment |  Blocker | master, Operability, Usability |
+| [HBASE-26703](https://issues.apache.org/jira/browse/HBASE-26703) | Allow 
configuration of IPC queue balancer |  Minor | . |
+| [HBASE-26576](https://issues.apache.org/jira/browse/HBASE-26576) | Allow 
Pluggable Queue to belong to FastPath or normal Balanced Executor |  Minor | 
regionserver, rpc |
+| [HBASE-26347](https://issues.apache.org/jira/browse/HBASE-26347) | Support 
detect and exclude slow DNs in fan-out of WAL |  Major | wal |
+| [HBASE-26284](https://issues.apache.org/jira/browse/HBASE-26284) | Add HBase 
Thrift API to get all table names along with whether it is enabled or not |  
Major | Thrift |
+| [HBASE-26141](https://issues.apache.org/jira/browse/HBASE-26141) | Add 
tracing support for HTable and sync connection on branch-2 |  Major | tracing |
+| [HBASE-6908](https://issues.apache.org/jira/browse/HBASE-6908) | Pluggable 
Call BlockingQueue for HBaseServer |  Major | IPC/RPC |
+| [HBASE-25841](https://issues.apache.org/jira/browse/HBASE-25841) | Add basic 
jshell support |  Minor | shell, Usability |
+| [HBASE-25756](https://issues.apache.org/jira/browse/HBASE-25756) | Support 
alternate compression for major and minor compactions |  Minor | Compaction |
+| [HBASE-25751](https://issues.apache.org/jira/browse/HBASE-25751) | Add 
writable TimeToPurgeDeletes to ScanOptions |  Major | . |
+| [HBASE-25665](https://issues.apache.org/jira/browse/HBASE-25665) | Disable 
reverse DNS lookup for SASL Kerberos client connection |  Major | . |
+| [HBASE-25587](https://issues.apache.org/jira/browse/HBASE-25587) | [hbck2] 
Schedule SCP for all unknown servers |  Major | hbase-operator-tools, hbck2 |
+| [HBASE-25460](https://issues.apache.org/jira/browse/HBASE-25460) | Expose 
drainingServers as cluster metric |  Major | metrics |
+| [HBASE-25496](https://issues.apache.org/jira/browse/HBASE-25496) | add 
get\_namespace\_rsgroup command |  Major | . |
+| [HBASE-24620](https://issues.apache.org/jira/browse/HBASE-24620) | Add a 
ClusterManager which submits command to ZooKeeper and its Agent which picks and 
execute those Commands. |  Major | integration tests |
+| [HBASE-22749](https://issues.apache.org/jira/browse/HBASE-22749) | 
Distributed MOB compactions |  Major | mob |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-27305](https://issues.apache.org/jira/browse/HBASE-27305) | add an 
option to skip file splitting when bulkload hfiles |  Minor | tooling |
+| [HBASE-27089](https://issues.apache.org/jira/browse/HBASE-27089) | Add 
“commons.crypto.stream.buffer.size” configuration |  Minor | io |
+| [HBASE-27268](https://issues.apache.org/jira/browse/HBASE-27268) | In trace 
log mode, the client does not print callId/startTime and the server does not 
print receiveTime |  Minor | logging |
+| [HBASE-26982](https://issues.apache.org/jira/browse/HBASE-26982) | Add index 
and bloom filter statistics of LruBlockCache on rs web UI |  Minor | 
BlockCache, UI |
+| [HBASE-27296](https://issues.apache.org/jira/browse/HBASE-27296) | Some 
Cell's implementation of toString() such as IndividualBytesFieldCell prints out 
value and tags which is too verbose |  Minor | logging |
+| [HBASE-27283](https://issues.apache.org/jira/browse/HBASE-27283) | Use 
readTO instead of hard coded RpcClient.DEFAULT\_SOCKET\_TIMEOUT\_READ when 
creating  ReadTimeoutHandler in NettyRpcConnection |  Major | IPC/RPC, test |
+| [HBASE-27273](https://issues.apache.org/jira/browse/HBASE-27273) | Should 
stop autoRead and skip all the bytes when rpc request too big |  Major | 
IPC/RPC |
+| [HBASE-27153](https://issues.apache.org/jira/browse/HBASE-27153) | 
Improvements to read-path tracing |  Major | Operability, regionserver |
+| [HBASE-27229](https://issues.apache.org/jira/browse/HBASE-27229) | 
BucketCache statistics should not count evictions by hfile |  Major | . |
+| [HBASE-27222](https://issues.apache.org/jira/browse/HBASE-27222) | Purge 
FutureReturnValueIgnored warnings from error prone |  Major | netty |
+| [HBASE-20499](https://issues.apache.org/jira/browse/HBASE-20499) | 
Replication/Priority executors can use specific max queue length as default 
value instead of general maxQueueLength |  Minor | rpc |
+| [HBASE-27208](https://issues.apache.org/jira/browse/HBASE-27208) | Use 
spotless to purge the missing summary warnings from error prone |  Major | pom |
+| [HBASE-27048](https://issues.apache.org/jira/browse/HBASE-27048) | Server 
side scanner time limit should account for time in queue |  Major | . |
+| [HBASE-27088](https://issues.apache.org/jira/browse/HBASE-27088) | 
IntegrationLoadTestCommonCrawl async load improvements |  Minor | integration 
tests, test |
+| [HBASE-27149](https://issues.apache.org/jira/browse/HBASE-27149) | Server 
should close scanner if client times out before results are ready |  Major | . |
+| [HBASE-27188](https://issues.apache.org/jira/browse/HBASE-27188) | Report 
maxStoreFileCount in jmx |  Minor | . |
+| [HBASE-27186](https://issues.apache.org/jira/browse/HBASE-27186) | Report 
block cache size metrics separately for L1 and L2 |  Minor | . |
+| [HBASE-26950](https://issues.apache.org/jira/browse/HBASE-26950) | Use 
AsyncConnection in ReplicationSink |  Major | . |
+| [HBASE-27078](https://issues.apache.org/jira/browse/HBASE-27078) | Allow 
configuring a separate timeout for meta scans |  Major | . |
+| [HBASE-27101](https://issues.apache.org/jira/browse/HBASE-27101) | support 
commons-crypto version 1.1.0 |  Minor | . |
+| [HBASE-26218](https://issues.apache.org/jira/browse/HBASE-26218) | Better 
logging in CanaryTool |  Minor | canary |
+| [HBASE-27146](https://issues.apache.org/jira/browse/HBASE-27146) | Avoid 
CellUtil.cloneRow in MetaCellComparator |  Major | meta, Offheaping, 
Performance |
+| [HBASE-27125](https://issues.apache.org/jira/browse/HBASE-27125) | The batch 
size of cleaning expired mob files should have an upper bound |  Minor | mob |
+| [HBASE-26923](https://issues.apache.org/jira/browse/HBASE-26923) | 
PerformanceEvaluation support encryption option |  Minor | PE |
+| [HBASE-27095](https://issues.apache.org/jira/browse/HBASE-27095) | HbckChore 
should produce a report |  Major | hbck2, master |
+| [HBASE-27046](https://issues.apache.org/jira/browse/HBASE-27046) | The 
filenum in AbstractFSWAL should be monotone increasing |  Major | . |
+| [HBASE-27093](https://issues.apache.org/jira/browse/HBASE-27093) | 
AsyncNonMetaRegionLocator:put Complete CompletableFuture outside lock block | 
 Major | asyncclient, Client |
+| [HBASE-27080](https://issues.apache.org/jira/browse/HBASE-27080) | Optimize 
debug output log of ConstantSizeRegionSplitPolicy class. |  Minor | logging |
+| [HBASE-26649](https://issues.apache.org/jira/browse/HBASE-26649) | Support 
meta replica LoadBalance mode for RegionLocator#getAllRegionLocations() |  
Major | meta replicas |
+| [HBASE-26320](https://issues.apache.org/jira/browse/HBASE-26320) | Separate 
Log Cleaner DirScanPool to prevent the OLDWALs from filling up the disk when 
archive is large |  Major | Operability |
+| [HBASE-27043](https://issues.apache.org/jira/browse/HBASE-27043) | Let lock 
wait timeout to improve performance of SnapshotHFileCleaner |  Major | 
snapshots |
+| [HBASE-25465](https://issues.apache.org/jira/browse/HBASE-25465) | Use javac 
--release option for supporting cross version compilation |  Minor | 
create-release |
+| [HBASE-27013](https://issues.apache.org/jira/browse/HBASE-27013) | Introduce 
read all bytes when using pread for prefetch |  Major | HFile, Performance |
+| [HBASE-27003](https://issues.apache.org/jira/browse/HBASE-27003) | Optimize 
log format for PerformanceEvaluation |  Minor | . |
+| [HBASE-26990](https://issues.apache.org/jira/browse/HBASE-26990) | Add 
default implementation for BufferedMutator interface setters |  Minor | . |
+| [HBASE-26419](https://issues.apache.org/jira/browse/HBASE-26419) | Tracing 
Spans of RPCs should follow otel semantic conventions |  Blocker | tracing |
+| [HBASE-26961](https://issues.apache.org/jira/browse/HBASE-26961) | cache 
region locations when getAllRegionLocations() for branch-2.4+ |  Minor | Client 
|
+| [HBASE-26975](https://issues.apache.org/jira/browse/HBASE-26975) | Add on 
heap and off heap memstore info in rs web UI |  Minor | UI |
+| [HBASE-26980](https://issues.apache.org/jira/browse/HBASE-26980) | Update 
javadoc of BucketCache.java |  Trivial | documentation |
+| [HBASE-26971](https://issues.apache.org/jira/browse/HBASE-26971) | 
SnapshotInfo --snapshot param is marked as required even when trying to list 
all snapshots |  Minor | . |
+| [HBASE-26807](https://issues.apache.org/jira/browse/HBASE-26807) | Unify 
CallQueueTooBigException special pause with CallDroppedException |  Major | . |
+| [HBASE-26891](https://issues.apache.org/jira/browse/HBASE-26891) | Make 
MetricsConnection scope configurable |  Minor | . |
+| [HBASE-26947](https://issues.apache.org/jira/browse/HBASE-26947) | Implement 
a special TestAppender to limit the size of test output |  Major | logging, 
test |
+| [HBASE-26618](https://issues.apache.org/jira/browse/HBASE-26618) | Involving 
primary meta region in meta scan with CatalogReplicaLoadBalanceSimpleSelector | 
 Minor | meta replicas |
+| [HBASE-26885](https://issues.apache.org/jira/browse/HBASE-26885) | The TRSP 
should not go on when it get a bogus server name from AM |  Major | proc-v2 |
+| [HBASE-26872](https://issues.apache.org/jira/browse/HBASE-26872) | Load rate 
calculator for cost functions should be more precise |  Major | Balancer |
+| [HBASE-26832](https://issues.apache.org/jira/browse/HBASE-26832) | Avoid 
repeated releasing of flushed wal entries in AsyncFSWAL#syncCompleted |  Major 
| wal |
+| [HBASE-26878](https://issues.apache.org/jira/browse/HBASE-26878) | 
TableInputFormatBase should cache RegionSizeCalculator |  Minor | . |
+| [HBASE-26175](https://issues.apache.org/jira/browse/HBASE-26175) | 
MetricsHBaseServer should record all kinds of Exceptions |  Minor | metrics |
+| [HBASE-21065](https://issues.apache.org/jira/browse/HBASE-21065) | Try 
ROW\_INDEX\_V1 encoding on meta table (fix bloomfilters on meta while we are at 
it) |  Major | meta, Performance |
+| [HBASE-26858](https://issues.apache.org/jira/browse/HBASE-26858) | Refactor 
TestMasterRegionOnTwoFileSystems to avoid dead loop |  Major | test |
+| [HBASE-26833](https://issues.apache.org/jira/browse/HBASE-26833) | Avoid 
waiting to clear buffer usage of ReplicationSourceShipper when aborting the RS 
|  Major | regionserver, Replication |
+| [HBASE-26848](https://issues.apache.org/jira/browse/HBASE-26848) | Set 
java.io.tmpdir on mvn command when running jenkins job |  Major | jenkins, test 
|
+| [HBASE-26828](https://issues.apache.org/jira/browse/HBASE-26828) | Increase 
the concurrency when running UTs in pre commit job |  Major | jenkins, test |
+| [HBASE-26680](https://issues.apache.org/jira/browse/HBASE-26680) | Close and 
do not write trailer for the broken WAL writer |  Major | wal |
+| [HBASE-26720](https://issues.apache.org/jira/browse/HBASE-26720) | 
ExportSnapshot should validate the source snapshot before copying files |  
Major | snapshots |
+| [HBASE-26275](https://issues.apache.org/jira/browse/HBASE-26275) | update 
error message when executing deleteall with ROWPREFIXFILTER in meta table |  
Minor | shell |
+| [HBASE-26835](https://issues.apache.org/jira/browse/HBASE-26835) | Rewrite 
TestLruAdaptiveBlockCache to make it more stable |  Major | test |
+| [HBASE-26830](https://issues.apache.org/jira/browse/HBASE-26830) | Rewrite 
TestLruBlockCache to make it more stable |  Major | test |
+| [HBASE-26814](https://issues.apache.org/jira/browse/HBASE-26814) | Default 
StoreHotnessProtector to off, with logs to guide when to turn it on |  Major | 
. |
+| [HBASE-26784](https://issues.apache.org/jira/browse/HBASE-26784) | Use 
HIGH\_QOS for ResultScanner.close requests |  Major | . |
+| [HBASE-26552](https://issues.apache.org/jira/browse/HBASE-26552) | Introduce 
retry to logroller to avoid abort |  Major | wal |
+| [HBASE-26792](https://issues.apache.org/jira/browse/HBASE-26792) | Implement 
ScanInfo#toString |  Minor | regionserver |
+| [HBASE-26731](https://issues.apache.org/jira/browse/HBASE-26731) | Metrics 
for tracking of active scanners |  Minor | . |
+| [HBASE-26789](https://issues.apache.org/jira/browse/HBASE-26789) | 
Automatically add default security headers to http/rest if SSL enabled |  Major 
| REST, UI |
+| [HBASE-26765](https://issues.apache.org/jira/browse/HBASE-26765) | Minor 
refactor of async scanning code |  Major | . |
+| [HBASE-26659](https://issues.apache.org/jira/browse/HBASE-26659) | The 
ByteBuffer of metadata in RAMQueueEntry in BucketCache could be reused. |  
Major | BucketCache, Performance |
+| [HBASE-26730](https://issues.apache.org/jira/browse/HBASE-26730) | Extend 
hbase shell 'status' command to support an option 'tasks' |  Minor | 
Operability, shell |
+| [HBASE-26709](https://issues.apache.org/jira/browse/HBASE-26709) | Ban the 
usage of junit 3 TestCase |  Major | test |
+| [HBASE-26724](https://issues.apache.org/jira/browse/HBASE-26724) | Backport 
the UT changes in HBASE-24510 to branch-2.x |  Major | test |
+| [HBASE-26702](https://issues.apache.org/jira/browse/HBASE-26702) | Make 
ageOfLastShip, ageOfLastApplied  extend TimeHistogram instead of plain 
histogram. |  Minor | metrics, Replication |
+| [HBASE-26726](https://issues.apache.org/jira/browse/HBASE-26726) | Allow 
disable of region warmup before graceful move |  Minor | master, Region 
Assignment |
+| [HBASE-26657](https://issues.apache.org/jira/browse/HBASE-26657) | 
ProfileServlet should move the output location to hbase specific directory |  
Minor | . |
+| [HBASE-26590](https://issues.apache.org/jira/browse/HBASE-26590) | 
Hbase-client Meta lookup performance regression between hbase-1 and hbase-2 |  
Major | meta |
+| [HBASE-26567](https://issues.apache.org/jira/browse/HBASE-26567) | Remove 
IndexType from ChunkCreator |  Major | in-memory-compaction |
+| [HBASE-26641](https://issues.apache.org/jira/browse/HBASE-26641) | Split 
TestMasterFailoverWithProcedures |  Major | proc-v2, test |
+| [HBASE-26629](https://issues.apache.org/jira/browse/HBASE-26629) | Add 
expiration for long time vacant scanners in Thrift2 |  Major | Performance, 
Thrift |
+| [HBASE-26638](https://issues.apache.org/jira/browse/HBASE-26638) | 
Cherry-pick the ReflectionUtils improvements in HBASE-21515 to branch-2 |  
Major | util |
+| [HBASE-26635](https://issues.apache.org/jira/browse/HBASE-26635) | Optimize 
decodeNumeric in OrderedBytes |  Major | Performance |
+| [HBASE-26623](https://issues.apache.org/jira/browse/HBASE-26623) | Report 
CallDroppedException in exception metrics |  Minor | IPC/RPC, metrics, rpc |
+| [HBASE-26609](https://issues.apache.org/jira/browse/HBASE-26609) | Round the 
size to MB or KB at the end of calculation in HRegionServer.createRegionLoad |  
Major | regionserver |
+| [HBASE-26598](https://issues.apache.org/jira/browse/HBASE-26598) | Fix 
excessive connections in MajorCompactor |  Major | Compaction, tooling |
+| [HBASE-26579](https://issues.apache.org/jira/browse/HBASE-26579) | Set 
storage policy of recovered edits  when wal storage type is configured |  Major 
| Recovery |
+| [HBASE-26601](https://issues.apache.org/jira/browse/HBASE-26601) | 
maven-gpg-plugin failing with "Inappropriate ioctl for device" |  Major | build 
|
+| [HBASE-26556](https://issues.apache.org/jira/browse/HBASE-26556) | IT and 
Chaos Monkey improvements |  Minor | integration tests |
+| [HBASE-25547](https://issues.apache.org/jira/browse/HBASE-25547) | Thread 
pools should release unused resources |  Minor | master, regionserver |
+| [HBASE-26525](https://issues.apache.org/jira/browse/HBASE-26525) | Use 
unique thread name for group WALs |  Major | wal |
+| [HBASE-26517](https://issues.apache.org/jira/browse/HBASE-26517) | Add auth 
method information to AccessChecker audit log |  Trivial | security |
+| [HBASE-26512](https://issues.apache.org/jira/browse/HBASE-26512) | Make 
timestamp format configurable in HBase shell scan output |  Major | shell |
+| [HBASE-26485](https://issues.apache.org/jira/browse/HBASE-26485) | Introduce 
a method to clean restore directory after Snapshot Scan |  Minor | snapshots |
+| [HBASE-26479](https://issues.apache.org/jira/browse/HBASE-26479) | Print too 
slow/big scan's operation\_id in region server log |  Minor | regionserver, 
scan |
+| [HBASE-26475](https://issues.apache.org/jira/browse/HBASE-26475) | The flush 
and compact methods in HTU should skip processing secondary replicas |  Major | 
test |
+| [HBASE-26249](https://issues.apache.org/jira/browse/HBASE-26249) | 
Ameliorate compaction made by bulk-loading files |  Major | . |
+| [HBASE-26421](https://issues.apache.org/jira/browse/HBASE-26421) | Use 
HFileLink file to replace entire file‘s reference when splitting |  Major | . 
|
+| [HBASE-26267](https://issues.apache.org/jira/browse/HBASE-26267) | Master 
initialization fails if Master Region WAL dir is missing |  Major | master |
+| [HBASE-26446](https://issues.apache.org/jira/browse/HBASE-26446) | 
CellCounter should report serialized cell size counts too |  Minor | . |
+| [HBASE-26432](https://issues.apache.org/jira/browse/HBASE-26432) | Add 
tracing support in hbase shell |  Minor | shell, tracing |
+| [HBASE-26337](https://issues.apache.org/jira/browse/HBASE-26337) | 
Optimization for weighted random generators |  Major | Balancer |
+| [HBASE-26363](https://issues.apache.org/jira/browse/HBASE-26363) | 
OpenTelemetry configuration support for per-process service names |  Major | 
tracing |
+| [HBASE-26309](https://issues.apache.org/jira/browse/HBASE-26309) | Balancer 
tends to move regions to the server at the end of list |  Major | Balancer |
+| [HBASE-26305](https://issues.apache.org/jira/browse/HBASE-26305) | Move 
NavigableSet add operation to writer thread in BucketCache |  Minor | 
BucketCache, Performance |
+| [HBASE-26251](https://issues.apache.org/jira/browse/HBASE-26251) | 
StochasticLoadBalancer metrics should update even if balancer doesn't run |  
Minor | Balancer |
+| [HBASE-26270](https://issues.apache.org/jira/browse/HBASE-26270) | Provide 
getConfiguration method for Region and Store interface |  Minor | . |
+| [HBASE-26273](https://issues.apache.org/jira/browse/HBASE-26273) | 
TableSnapshotInputFormat/TableSnapshotInputFormatImpl should use 
ReadType.STREAM for scanning HFiles |  Major | mapreduce |
+| [HBASE-26276](https://issues.apache.org/jira/browse/HBASE-26276) | Allow 
HashTable/SyncTable to perform rawScan when comparing cells |  Major | . |
+| [HBASE-26229](https://issues.apache.org/jira/browse/HBASE-26229) | Limit 
count and size of L0 files compaction in StripeCompactionPolicy |  Major | 
Compaction |
+| [HBASE-26243](https://issues.apache.org/jira/browse/HBASE-26243) | Fix typo 
for file 
'hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java' |  
Trivial | . |
+| [HBASE-25773](https://issues.apache.org/jira/browse/HBASE-25773) | 
TestSnapshotScannerHDFSAclController.setupBeforeClass is flaky |  Major | . |
+| [HBASE-26147](https://issues.apache.org/jira/browse/HBASE-26147) | Add dry 
run mode to hbase balancer |  Major | Balancer, master |
+| [HBASE-25642](https://issues.apache.org/jira/browse/HBASE-25642) | Fix or 
stop warning about already cached block |  Major | BlockCache, Operability, 
regionserver |
+| [HBASE-26212](https://issues.apache.org/jira/browse/HBASE-26212) | Allow 
AuthUtil automatic renewal to be disabled |  Minor | Client, security |
+| [HBASE-26187](https://issues.apache.org/jira/browse/HBASE-26187) | Write 
straight into the store directory when Splitting and Merging |  Major | . |
+| [HBASE-26193](https://issues.apache.org/jira/browse/HBASE-26193) | Do not 
store meta region location as permanent state on zookeeper |  Major | meta, 
Zookeeper |
+| [HBASE-24652](https://issues.apache.org/jira/browse/HBASE-24652) | 
master-status UI make date type fields sortable |  Minor | master, Operability, 
UI, Usability |
+| [HBASE-25680](https://issues.apache.org/jira/browse/HBASE-25680) | 
Non-idempotent test in TestReplicationHFileCleaner |  Minor | test |
+| [HBASE-26179](https://issues.apache.org/jira/browse/HBASE-26179) | 
TestRequestTooBigException spends too much time to finish |  Major | test |
+| [HBASE-26160](https://issues.apache.org/jira/browse/HBASE-26160) | 
Configurable disallowlist for live editing of loglevels |  Minor | . |
+| [HBASE-25469](https://issues.apache.org/jira/browse/HBASE-25469) | Add 
detailed RIT info in JSON format for consumption as metrics |  Minor | master |
+| [HBASE-26154](https://issues.apache.org/jira/browse/HBASE-26154) | Provide 
exception metric for quota exceeded and throttling |  Minor | . |
+| [HBASE-26144](https://issues.apache.org/jira/browse/HBASE-26144) | The 
HStore.snapshot method is never called in main code |  Major | regionserver |
+| [HBASE-26105](https://issues.apache.org/jira/browse/HBASE-26105) | Rectify 
the expired TODO comment in CombinedBC |  Trivial | BlockCache |
+| [HBASE-26146](https://issues.apache.org/jira/browse/HBASE-26146) | Allow 
custom opts for hbck in hbase bin |  Minor | . |
+| [HBASE-26118](https://issues.apache.org/jira/browse/HBASE-26118) | The 
HStore.commitFile and HStore.moveFileIntoPlace almost have the same logic |  
Major | Compaction, regionserver |
+| [HBASE-26119](https://issues.apache.org/jira/browse/HBASE-26119) | Polish 
TestAsyncNonMetaRegionLocator |  Major | meta replicas, test |
+| [HBASE-21946](https://issues.apache.org/jira/browse/HBASE-21946) | Use 
ByteBuffer pread instead of byte[] pread in HFileBlock when applicable |  
Critical | Offheaping |
+| [HBASE-26025](https://issues.apache.org/jira/browse/HBASE-26025) | Add a 
flag to mark if the IOError can be solved by retry in thrift IOError |  Major | 
Thrift |
+| [HBASE-25986](https://issues.apache.org/jira/browse/HBASE-25986) | Expose 
the NORMALIZARION\_ENABLED table descriptor through a property in hbase-site |  
Minor | Normalizer |
+| [HBASE-25700](https://issues.apache.org/jira/browse/HBASE-25700) | Enhance 
znode parent validation when add\_peer |  Minor | Replication |
+| [HBASE-26069](https://issues.apache.org/jira/browse/HBASE-26069) | Remove 
HStore.compactRecentForTestingAssumingDefaultPolicy and 
DefaultCompactor.compactForTesting |  Major | Compaction, test |
+| [HBASE-26065](https://issues.apache.org/jira/browse/HBASE-26065) | 
StripeStoreFileManager does not need to throw IOException for most methods |  
Major | Compaction, HFile |
+| [HBASE-25914](https://issues.apache.org/jira/browse/HBASE-25914) | Provide 
slow/large logs on RegionServer UI |  Major | regionserver, UI |
+| [HBASE-26012](https://issues.apache.org/jira/browse/HBASE-26012) | Improve 
logging and dequeue logic in DelayQueue |  Minor | . |
+| [HBASE-26020](https://issues.apache.org/jira/browse/HBASE-26020) | Split 
TestWALEntryStream.testDifferentCounts out |  Major | Replication, test |
+| [HBASE-25937](https://issues.apache.org/jira/browse/HBASE-25937) | Clarify 
UnknownRegionException |  Minor | Client |
+| [HBASE-25998](https://issues.apache.org/jira/browse/HBASE-25998) | Revisit 
synchronization in SyncFuture |  Major | Performance, regionserver, wal |
+| [HBASE-26000](https://issues.apache.org/jira/browse/HBASE-26000) | Optimize 
the display of ZK dump in the master web UI |  Minor | . |
+| [HBASE-25995](https://issues.apache.org/jira/browse/HBASE-25995) | Change 
the method name for DoubleArrayCost.setCosts |  Major | Balancer |
+| [HBASE-26002](https://issues.apache.org/jira/browse/HBASE-26002) | 
MultiRowMutationEndpoint should return the result of the conditional update |  
Major | Coprocessors |
+| [HBASE-25993](https://issues.apache.org/jira/browse/HBASE-25993) | Make 
excluded SSL cipher suites configurable for all Web UIs |  Major | . |
+| [HBASE-25987](https://issues.apache.org/jira/browse/HBASE-25987) | Make SSL 
keystore type configurable for HBase ThriftServer |  Major | Thrift |
+| [HBASE-25666](https://issues.apache.org/jira/browse/HBASE-25666) | Explain 
why balancer is skipping runs |  Major | Balancer, master, UI |
+| [HBASE-25942](https://issues.apache.org/jira/browse/HBASE-25942) | Get rid 
of null regioninfo in wrapped connection exceptions |  Trivial | logging |
+| [HBASE-25745](https://issues.apache.org/jira/browse/HBASE-25745) | 
Deprecate/Rename config \`hbase.normalizer.min.region.count\` to 
\`hbase.normalizer.merge.min.region.count\` |  Minor | master, Normalizer |
+| [HBASE-25908](https://issues.apache.org/jira/browse/HBASE-25908) | Exclude 
jakarta.activation-api |  Major | hadoop3, shading |
+| [HBASE-25933](https://issues.apache.org/jira/browse/HBASE-25933) | Log trace 
raw exception, instead of cause message in NettyRpcServerRequestDecoder |  
Minor | . |
+| [HBASE-25534](https://issues.apache.org/jira/browse/HBASE-25534) | Honor 
TableDescriptor settings earlier in normalization |  Major | Normalizer |
+| [HBASE-25906](https://issues.apache.org/jira/browse/HBASE-25906) | UI of 
master-status to show recent history of balancer desicion |  Major | Balancer, 
master, UI |
+| [HBASE-25899](https://issues.apache.org/jira/browse/HBASE-25899) | Improve 
efficiency of SnapshotHFileCleaner |  Major | master |
+| [HBASE-25682](https://issues.apache.org/jira/browse/HBASE-25682) | Add a new 
command to update the configuration of all RSs in a RSGroup |  Major | Admin, 
shell |
+| [HBASE-25032](https://issues.apache.org/jira/browse/HBASE-25032) | Do not 
assign regions to region server which has not called regionServerReport yet |  
Major | . |
+| [HBASE-25860](https://issues.apache.org/jira/browse/HBASE-25860) | Add 
metric for successful wal roll requests. |  Major | metrics, wal |
+| [HBASE-25754](https://issues.apache.org/jira/browse/HBASE-25754) | 
StripeCompactionPolicy should support compacting cold regions |  Minor | 
Compaction |
+| [HBASE-25766](https://issues.apache.org/jira/browse/HBASE-25766) | Introduce 
RegionSplitRestriction that restricts the pattern of the split point |  Major | 
. |
+| [HBASE-25798](https://issues.apache.org/jira/browse/HBASE-25798) | typo in 
MetricsAssertHelper |  Minor | . |
+| [HBASE-25770](https://issues.apache.org/jira/browse/HBASE-25770) | Http 
InfoServers should honor gzip encoding when requested |  Major | UI |
+| [HBASE-25776](https://issues.apache.org/jira/browse/HBASE-25776) | Use 
Class.asSubclass to fix the warning in 
StochasticLoadBalancer.loadCustomCostFunctions |  Minor | Balancer |
+| [HBASE-25767](https://issues.apache.org/jira/browse/HBASE-25767) | 
CandidateGenerator.getRandomIterationOrder is too slow on large cluster |  
Major | Balancer, Performance |
+| [HBASE-25762](https://issues.apache.org/jira/browse/HBASE-25762) | 
Improvement for some debug-logging guards |  Minor | logging, Performance |
+| [HBASE-25653](https://issues.apache.org/jira/browse/HBASE-25653) | Add units 
and round off region size to 2 digits after decimal |  Major | master, 
Normalizer |
+| [HBASE-25482](https://issues.apache.org/jira/browse/HBASE-25482) | Improve 
SimpleRegionNormalizer#getAverageRegionSizeMb |  Minor | Normalizer |
+| [HBASE-25759](https://issues.apache.org/jira/browse/HBASE-25759) | The 
master services field in LocalityBasedCostFunction is never used |  Major | 
Balancer |
+| [HBASE-25744](https://issues.apache.org/jira/browse/HBASE-25744) | Change 
default of \`hbase.normalizer.merge.min\_region\_size.mb\` to \`0\` |  Major | 
master, Normalizer |
+| [HBASE-25747](https://issues.apache.org/jira/browse/HBASE-25747) | Remove 
unused getWriteAvailable method in OperationQuota |  Minor | Quotas |
+| [HBASE-25558](https://issues.apache.org/jira/browse/HBASE-25558) | Adding 
audit log for execMasterService |  Major | . |
+| [HBASE-25703](https://issues.apache.org/jira/browse/HBASE-25703) | Support 
conditional update in MultiRowMutationEndpoint |  Major | Coprocessors |
+| [HBASE-25686](https://issues.apache.org/jira/browse/HBASE-25686) | [hbtop] 
Add some javadoc |  Minor | hbtop |
+| [HBASE-25627](https://issues.apache.org/jira/browse/HBASE-25627) | HBase 
replication should have a metric to represent if the source is stuck getting 
initialized |  Major | Replication |
+| [HBASE-25688](https://issues.apache.org/jira/browse/HBASE-25688) | Use 
CustomRequestLog instead of Slf4jRequestLog for jetty |  Major | logging, UI |
+| [HBASE-25678](https://issues.apache.org/jira/browse/HBASE-25678) | Support 
nonce operations for Increment/Append in RowMutations and CheckAndMutate |  
Major | . |
+| [HBASE-25679](https://issues.apache.org/jira/browse/HBASE-25679) | Size of 
log queue metric is incorrect in branch-1/branch-2 |  Major | . |
+| [HBASE-25518](https://issues.apache.org/jira/browse/HBASE-25518) | Support 
separate child regions to different region servers |  Major | . |
+| [HBASE-25643](https://issues.apache.org/jira/browse/HBASE-25643) | The 
delayed FlushRegionEntry should be removed when we need a non-delayed one |  
Major | regionserver |
+| [HBASE-25621](https://issues.apache.org/jira/browse/HBASE-25621) | Balancer 
should check region plan source to avoid misplace region groups |  Major | 
Balancer |
+| [HBASE-25374](https://issues.apache.org/jira/browse/HBASE-25374) | Make REST 
Client connection and socket time out configurable |  Minor | REST |
+| [HBASE-25597](https://issues.apache.org/jira/browse/HBASE-25597) | Add row 
info in Exception when cell size exceeds maxCellSize |  Minor | . |
+| [HBASE-25660](https://issues.apache.org/jira/browse/HBASE-25660) | Print 
split policy in use on Region open (as well as split policy vitals) |  Trivial 
| . |
+| [HBASE-25635](https://issues.apache.org/jira/browse/HBASE-25635) | 
CandidateGenerator may miss some region balance actions |  Major | Balancer |
+| [HBASE-25622](https://issues.apache.org/jira/browse/HBASE-25622) | 
Result#compareResults should compare tags. |  Major | Client |
+| [HBASE-25570](https://issues.apache.org/jira/browse/HBASE-25570) | On 
largish cluster, "CleanerChore: Could not delete dir..." makes master log 
unreadable |  Major | . |
+| [HBASE-25566](https://issues.apache.org/jira/browse/HBASE-25566) | 
RoundRobinTableInputFormat |  Major | mapreduce |
+| [HBASE-25636](https://issues.apache.org/jira/browse/HBASE-25636) | Expose 
HBCK report as metrics |  Minor | metrics |
+| [HBASE-25548](https://issues.apache.org/jira/browse/HBASE-25548) | 
Optionally allow snapshots to preserve cluster's max filesize config by setting 
it into table descriptor |  Major | . |
+| [HBASE-25582](https://issues.apache.org/jira/browse/HBASE-25582) | Support 
setting scan ReadType to be STREAM at cluster level |  Major | . |
+| [HBASE-23578](https://issues.apache.org/jira/browse/HBASE-23578) | [UI] 
Master UI shows long stack traces when table is broken |  Minor | master, UI |
+| [HBASE-25637](https://issues.apache.org/jira/browse/HBASE-25637) | Rename 
method completeCompaction to refreshStoreSizeCount |  Minor | . |
+| [HBASE-25492](https://issues.apache.org/jira/browse/HBASE-25492) | Create 
table with rsgroup info in branch-2 |  Major | rsgroup |
+| [HBASE-25603](https://issues.apache.org/jira/browse/HBASE-25603) | Add 
switch for compaction after bulkload |  Major | Compaction |
+| [HBASE-25539](https://issues.apache.org/jira/browse/HBASE-25539) | Add 
metric for age of oldest wal. |  Major | metrics, regionserver |
+| [HBASE-25574](https://issues.apache.org/jira/browse/HBASE-25574) | Revisit 
put/delete/increment/append related RegionObserver methods |  Major | 
Coprocessors |
+| [HBASE-25541](https://issues.apache.org/jira/browse/HBASE-25541) | In 
WALEntryStream, set the current path to null while dequeing the log |  Major | 
. |
+| [HBASE-23887](https://issues.apache.org/jira/browse/HBASE-23887) | New L1 
cache : AdaptiveLRU |  Major | BlockCache, Performance |
+| [HBASE-25364](https://issues.apache.org/jira/browse/HBASE-25364) | Redo the 
getMidPoint() in HFileWriterImpl to get rid of the double comparison process |  
Minor | . |
+| [HBASE-25519](https://issues.apache.org/jira/browse/HBASE-25519) | BLOCKSIZE 
needs to support pretty print |  Major | . |
+| [HBASE-24772](https://issues.apache.org/jira/browse/HBASE-24772) | Use 
GetoptLong or OptionParser in hbase-shell |  Minor | shell |
+| [HBASE-25542](https://issues.apache.org/jira/browse/HBASE-25542) | Add 
client detail to scan name so when lease expires, we have clue on who was 
scanning |  Major | scan |
+| [HBASE-25553](https://issues.apache.org/jira/browse/HBASE-25553) | It is 
better for ReplicationTracker.getListOfRegionServers to return ServerName 
instead of String |  Major | . |
+| [HBASE-25528](https://issues.apache.org/jira/browse/HBASE-25528) | Dedicated 
merge dispatch threadpool on master |  Minor | master |
+| [HBASE-25536](https://issues.apache.org/jira/browse/HBASE-25536) | Remove 0 
length wal file from logQueue if it belongs to old sources. |  Major | 
Replication |
+| [HBASE-25329](https://issues.apache.org/jira/browse/HBASE-25329) | Dump 
region hashes in logs for the regions that are stuck in transition for more 
than a configured amount of time |  Minor | . |
+| [HBASE-25475](https://issues.apache.org/jira/browse/HBASE-25475) | Improve 
unit test for HBASE-25445 : SplitWALRemoteProcedure failed to archive split WAL 
|  Minor | wal |
+| [HBASE-25431](https://issues.apache.org/jira/browse/HBASE-25431) | 
MAX\_FILESIZE and MEMSTORE\_FLUSHSIZE should not be set negative number |  
Major | . |
+| [HBASE-25439](https://issues.apache.org/jira/browse/HBASE-25439) | Add BYTE 
unit in PrettyPrinter.Unit |  Major | . |
+| [HBASE-25249](https://issues.apache.org/jira/browse/HBASE-25249) | Adding 
StoreContext |  Major | . |
+| [HBASE-23340](https://issues.apache.org/jira/browse/HBASE-23340) | hmaster  
/hbase/replication/rs  session expired (hbase replication default value is 
true, we don't use ) causes logcleaner can not clean oldWALs, which resulits in 
oldWALs too large (more than 2TB) |  Major | master |
+| [HBASE-25449](https://issues.apache.org/jira/browse/HBASE-25449) | 
'dfs.client.read.shortcircuit' should not be set in hbase-default.xml |  Major 
| conf |
+| [HBASE-25476](https://issues.apache.org/jira/browse/HBASE-25476) | Enable 
error prone check in pre commit |  Major | build |
+| [HBASE-25211](https://issues.apache.org/jira/browse/HBASE-25211) | Rack 
awareness in region\_mover |  Major | . |
+| [HBASE-25483](https://issues.apache.org/jira/browse/HBASE-25483) | set the 
loadMeta log level to debug. |  Major | MTTR, Region Assignment |
+| [HBASE-25471](https://issues.apache.org/jira/browse/HBASE-25471) | Move 
RegionScannerImpl out of HRegion |  Major | regionserver |
+| [HBASE-25458](https://issues.apache.org/jira/browse/HBASE-25458) | HRegion 
methods cleanup |  Major | regionserver |
+| [HBASE-25435](https://issues.apache.org/jira/browse/HBASE-25435) | Slow 
metric value can be configured |  Minor | metrics |
+| [HBASE-25318](https://issues.apache.org/jira/browse/HBASE-25318) | Configure 
where IntegrationTestImportTsv generates HFiles |  Minor | integration tests |
+| [HBASE-25450](https://issues.apache.org/jira/browse/HBASE-25450) | The 
parameter "hbase.bucketcache.size" is misdescribed |  Major | conf |
+| [HBASE-24751](https://issues.apache.org/jira/browse/HBASE-24751) | Display 
Task completion time and/or processing duration on Web UI |  Minor | UI |
+| [HBASE-25379](https://issues.apache.org/jira/browse/HBASE-25379) | Make 
retry pause time configurable for regionserver short operation RPC 
(reportRegionStateTransition/reportProcedureDone) |  Minor | regionserver |
+| [HBASE-24850](https://issues.apache.org/jira/browse/HBASE-24850) | 
CellComparator perf improvement |  Critical | Performance, scan |
+| [HBASE-25443](https://issues.apache.org/jira/browse/HBASE-25443) | Improve 
the experience of using the Master webpage by change the loading process of 
snapshot list to asynchronous |  Minor | master, UI |
+| [HBASE-25425](https://issues.apache.org/jira/browse/HBASE-25425) | Some 
notes on RawCell |  Trivial | . |
+| [HBASE-25084](https://issues.apache.org/jira/browse/HBASE-25084) | 
RegexStringComparator in ParseFilter should support case-insensitive regexes |  
Major | Thrift |
+| [HBASE-25420](https://issues.apache.org/jira/browse/HBASE-25420) | Some 
minor improvements in rpc implementation |  Minor | rpc |
+| [HBASE-25246](https://issues.apache.org/jira/browse/HBASE-25246) | 
Backup/Restore hbase cell tags. |  Major | backup&restore |
+| [HBASE-25363](https://issues.apache.org/jira/browse/HBASE-25363) | Improve 
performance of HFileLinkCleaner by using ReadWriteLock instead of synchronize | 
 Major | master |
+| [HBASE-25328](https://issues.apache.org/jira/browse/HBASE-25328) | Add 
builder method to create Tags. |  Minor | . |
+| [HBASE-25187](https://issues.apache.org/jira/browse/HBASE-25187) | Improve 
SizeCachedKV variants initialization |  Minor | . |
+| [HBASE-23303](https://issues.apache.org/jira/browse/HBASE-23303) | Add 
security headers to REST server/info page |  Major | REST |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-25970](https://issues.apache.org/jira/browse/HBASE-25970) | MOB data 
loss - incorrect concatenation of MOB\_FILE\_REFS |  Critical | mob |
+| [HBASE-24163](https://issues.apache.org/jira/browse/HBASE-24163) | MOB 
compactor implementations should use format specifiers when calling 
String.format |  Major | Compaction, mob |
+| [HBASE-27292](https://issues.apache.org/jira/browse/HBASE-27292) | Fix build 
failure against Hadoop 3.3.4 due to added dependency on okhttp |  Major | 
build, hadoop3, pom |
+| [HBASE-27275](https://issues.apache.org/jira/browse/HBASE-27275) | 
graceful\_stop.sh unable to restore the balance state |  Blocker | regionserver 
|
+| [HBASE-27282](https://issues.apache.org/jira/browse/HBASE-27282) | CME in 
AuthManager causes region server crash |  Major | acl |
+| [HBASE-26775](https://issues.apache.org/jira/browse/HBASE-26775) | 
TestProcedureSchedulerConcurrency fails in pre commit |  Major | proc-v2, test |
+| [HBASE-27269](https://issues.apache.org/jira/browse/HBASE-27269) | The 
implementation of TestReplicationStatus.waitOnMetricsReport is incorrect |  
Major | Replication, test |
+| [HBASE-27271](https://issues.apache.org/jira/browse/HBASE-27271) | 
BufferCallBeforeInitHandler should ignore the flush request |  Major | IPC/RPC |
+| [HBASE-26977](https://issues.apache.org/jira/browse/HBASE-26977) | HMaster's 
ShutdownHook does not take effect, if tablesOnMaster is false |  Major | master 
|
+| [HBASE-27247](https://issues.apache.org/jira/browse/HBASE-27247) | 
TestPerTableCFReplication.testParseTableCFsFromConfig is broken because of  
ReplicationPeerConfigUtil.parseTableCFsFromConfig |  Major | Replication |
+| [HBASE-27087](https://issues.apache.org/jira/browse/HBASE-27087) | 
TestQuotaThrottle times out |  Major | test |
+| [HBASE-27179](https://issues.apache.org/jira/browse/HBASE-27179) | Issues 
building with OpenJDK 17 |  Minor | build |
+| [HBASE-27204](https://issues.apache.org/jira/browse/HBASE-27204) | 
BlockingRpcClient will hang for 20 seconds when SASL is enabled after finishing 
negotiation |  Critical | rpc, sasl, security |
+| [HBASE-27075](https://issues.apache.org/jira/browse/HBASE-27075) | 
TestUpdateRSGroupConfiguration.testCustomOnlineConfigChangeInRSGroup is flaky | 
 Minor | rsgroup, test |
+| [HBASE-27219](https://issues.apache.org/jira/browse/HBASE-27219) | Change 
JONI encoding in RegexStringComparator |  Minor | Filters |
+| [HBASE-27195](https://issues.apache.org/jira/browse/HBASE-27195) | Clean up 
netty worker/thread pool configuration |  Major | . |
+| [HBASE-27211](https://issues.apache.org/jira/browse/HBASE-27211) | Data race 
in MonitoredTaskImpl could cause split wal failure |  Critical | monitoring, 
wal |
+| [HBASE-27053](https://issues.apache.org/jira/browse/HBASE-27053) | 
IOException during caching of uncompressed block to the block cache. |  Major | 
BlockCache |
+| [HBASE-27192](https://issues.apache.org/jira/browse/HBASE-27192) | The retry 
number for TestSeparateClientZKCluster is too small |  Major | test, Zookeeper |
+| [HBASE-27193](https://issues.apache.org/jira/browse/HBASE-27193) | 
TestZooKeeper is flaky |  Major | test, Zookeeper |
+| [HBASE-27097](https://issues.apache.org/jira/browse/HBASE-27097) | 
SimpleRpcServer is broken |  Blocker | rpc |
+| [HBASE-27189](https://issues.apache.org/jira/browse/HBASE-27189) | 
NettyServerRpcConnection is not properly closed when the netty channel is 
closed |  Blocker | netty, rpc |
+| [HBASE-27169](https://issues.apache.org/jira/browse/HBASE-27169) | 
TestSeparateClientZKCluster is flaky |  Major | test |
+| [HBASE-27180](https://issues.apache.org/jira/browse/HBASE-27180) | Multiple 
possible buffer leaks |  Major | netty, regionserver |
+| [HBASE-26708](https://issues.apache.org/jira/browse/HBASE-26708) | Netty 
"leak detected" and OutOfDirectMemoryError due to direct memory buffering with 
SASL implementation |  Blocker | netty, rpc, sasl |
+| [HBASE-27171](https://issues.apache.org/jira/browse/HBASE-27171) | Fix 
Annotation Error in HRegionFileSystem |  Trivial | . |
+| [HBASE-27170](https://issues.apache.org/jira/browse/HBASE-27170) | 
ByteBuffAllocator leak when decompressing blocks near minSizeForReservoirUse |  
Major | . |
+| [HBASE-27160](https://issues.apache.org/jira/browse/HBASE-27160) | 
ClientZKSyncer.deleteDataForClientZkUntilSuccess should break from the loop 
when deletion is succeeded |  Major | Client, Zookeeper |
+| [HBASE-27001](https://issues.apache.org/jira/browse/HBASE-27001) | The 
deleted variable cannot be printed out |  Minor | . |
+| [HBASE-27105](https://issues.apache.org/jira/browse/HBASE-27105) | 
HBaseInterClusterReplicationEndpoint should honor replication adaptive timeout 
|  Major | Replication |
+| [HBASE-27098](https://issues.apache.org/jira/browse/HBASE-27098) | Fix link 
for field comments |  Minor | . |
+| [HBASE-27143](https://issues.apache.org/jira/browse/HBASE-27143) | Add 
hbase-unsafe as a dependency for a MR job triggered by hbase shell |  Major | 
integration tests, mapreduce |
+| [HBASE-27099](https://issues.apache.org/jira/browse/HBASE-27099) | In the 
HFileBlock class, the log printing fspread/fsread cost time unit should be 
milliseconds |  Minor | HFile |
+| [HBASE-27128](https://issues.apache.org/jira/browse/HBASE-27128) | when open 
archiveRetries totalLogSize calculation mistake |  Minor | wal |
+| [HBASE-27117](https://issues.apache.org/jira/browse/HBASE-27117) | Update 
the method comments for RegionServerAccounting |  Minor | . |
+| [HBASE-27103](https://issues.apache.org/jira/browse/HBASE-27103) | All MR 
UTs are broken because of ClassNotFound |  Critical | hadoop3, test |
+| [HBASE-27066](https://issues.apache.org/jira/browse/HBASE-27066) | The 
Region Visualizer display failed |  Major | . |
+| [HBASE-27038](https://issues.apache.org/jira/browse/HBASE-27038) | 
CellComparator should extend Serializable |  Minor | . |
+| [HBASE-27017](https://issues.apache.org/jira/browse/HBASE-27017) | MOB 
snapshot is broken when FileBased SFT is used |  Major | mob |
+| [HBASE-26985](https://issues.apache.org/jira/browse/HBASE-26985) | 
SecureBulkLoadManager will set wrong permission if umask too strict |  Major | 
regionserver |
+| [HBASE-27081](https://issues.apache.org/jira/browse/HBASE-27081) | Fix 
disallowed compatibility breaks on branch-2.5 and branch-2 |  Blocker | . |
+| [HBASE-27079](https://issues.apache.org/jira/browse/HBASE-27079) | Lower 
some DEBUG level logs in ReplicationSourceWALReader to TRACE |  Minor | . |
+| [HBASE-27068](https://issues.apache.org/jira/browse/HBASE-27068) | NPE 
occurs when the active master has not yet been elected |  Major | . |
+| [HBASE-27064](https://issues.apache.org/jira/browse/HBASE-27064) | CME in 
TestRegionNormalizerWorkQueue |  Minor | test |
+| [HBASE-27069](https://issues.apache.org/jira/browse/HBASE-27069) | Hbase 
SecureBulkload permission regression |  Major | . |
+| [HBASE-27065](https://issues.apache.org/jira/browse/HBASE-27065) | Build 
against Hadoop 3.3.3 |  Major | build |
+| [HBASE-26854](https://issues.apache.org/jira/browse/HBASE-26854) | Shell 
startup logs a bunch of noise |  Major | . |
+| [HBASE-27061](https://issues.apache.org/jira/browse/HBASE-27061) | two phase 
bulkload is broken when SFT is in use. |  Major | . |
+| [HBASE-27055](https://issues.apache.org/jira/browse/HBASE-27055) | Add 
additional comments when using HBASE\_TRACE\_OPTS with standalone mode |  Minor 
| tracing |
+| [HBASE-27030](https://issues.apache.org/jira/browse/HBASE-27030) | Fix 
undefined local variable error in draining\_servers.rb |  Major | jruby, shell |
+| [HBASE-27047](https://issues.apache.org/jira/browse/HBASE-27047) | Fix typo 
for metric drainingRegionServers |  Minor | metrics |
+| [HBASE-27027](https://issues.apache.org/jira/browse/HBASE-27027) | 
Deprecated jetty SslContextFactory cause HMaster startup failure due to 
multiple certificates in KeyStores |  Major | security |
+| [HBASE-27032](https://issues.apache.org/jira/browse/HBASE-27032) | The 
draining region servers metric description is incorrect |  Minor | . |
+| [HBASE-27019](https://issues.apache.org/jira/browse/HBASE-27019) | Minor 
compression performance improvements |  Trivial | . |
+| [HBASE-26905](https://issues.apache.org/jira/browse/HBASE-26905) | 
ReplicationPeerManager#checkPeerExists should throw 
ReplicationPeerNotFoundException if peer doesn't exists |  Major | Replication |
+| [HBASE-27021](https://issues.apache.org/jira/browse/HBASE-27021) | 
StoreFileInfo should set its initialPath in a consistent way |  Major | . |
+| [HBASE-26994](https://issues.apache.org/jira/browse/HBASE-26994) | 
MasterFileSystem create directory without permission check |  Major | master |
+| [HBASE-26963](https://issues.apache.org/jira/browse/HBASE-26963) | 
ReplicationSource#removePeer hangs if we try to remove bad peer. |  Major | 
regionserver, Replication |
+| [HBASE-27000](https://issues.apache.org/jira/browse/HBASE-27000) | Block 
cache stats (Misses Caching) display error in RS web UI |  Major | . |
+| [HBASE-26984](https://issues.apache.org/jira/browse/HBASE-26984) | Chaos 
Monkey thread dies in ITBLL Chaos GracefulRollingRestartRsAction |  Major | 
integration tests |
+| [HBASE-26992](https://issues.apache.org/jira/browse/HBASE-26992) | Brotli 
compressor has unexpected behavior during reinitialization |  Minor | . |
+| [HBASE-26988](https://issues.apache.org/jira/browse/HBASE-26988) | Balancer 
should reset to default setting for hbase.master.loadbalance.bytable if 
dynamically reloading configuration |  Minor | Balancer |
+| [HBASE-26917](https://issues.apache.org/jira/browse/HBASE-26917) | Do not 
add --threads when running 'mvn site' |  Major | build, scripts |
+| [HBASE-22349](https://issues.apache.org/jira/browse/HBASE-22349) | 
Stochastic Load Balancer skips balancing when node is replaced in cluster |  
Major | Balancer |
+| [HBASE-26979](https://issues.apache.org/jira/browse/HBASE-26979) | 
StoreFileListFile logs frequent stacktraces at INFO level |  Minor | . |
+| [HBASE-26941](https://issues.apache.org/jira/browse/HBASE-26941) | 
LocalHBaseCluster.waitOnRegionServer should not call join while interrupted |  
Critical | test |
+| [HBASE-26938](https://issues.apache.org/jira/browse/HBASE-26938) | 
Compaction failures after StoreFileTracker integration |  Blocker | Compaction |
+| [HBASE-26944](https://issues.apache.org/jira/browse/HBASE-26944) | Possible 
resource leak while creating new region scanner |  Major | . |
+| [HBASE-26895](https://issues.apache.org/jira/browse/HBASE-26895) | on hbase 
shell, 'delete/deleteall' for a columnfamily is not working |  Major | shell |
+| [HBASE-26901](https://issues.apache.org/jira/browse/HBASE-26901) | delete 
with null columnQualifier occurs NullPointerException when NewVersionBehavior 
is on |  Major | Deletes, Scanners |
+| [HBASE-26880](https://issues.apache.org/jira/browse/HBASE-26880) | 
Misspelling commands in hbase shell will crash the shell |  Minor | shell |
+| [HBASE-26939](https://issues.apache.org/jira/browse/HBASE-26939) | Typo in 
admin.rb "COMPRESSION\_COMPACT\_MAJPR" |  Trivial | . |
+| [HBASE-26924](https://issues.apache.org/jira/browse/HBASE-26924) | 
[Documentation] Fix log parameter error and spelling error |  Trivial | logging 
|
+| [HBASE-26811](https://issues.apache.org/jira/browse/HBASE-26811) | Secondary 
replica may be disabled for read incorrectly forever |  Major | read replicas |
+| [HBASE-26812](https://issues.apache.org/jira/browse/HBASE-26812) | 
ShortCircuitingClusterConnection fails to close RegionScanners when making 
short-circuited calls |  Critical | . |
+| [HBASE-26838](https://issues.apache.org/jira/browse/HBASE-26838) | Junit jar 
is not included in the hbase tar ball, causing issues for some  hbase tools 
that do rely on it |  Major | integration tests, tooling |
+| [HBASE-26871](https://issues.apache.org/jira/browse/HBASE-26871) | shaded 
mapreduce and shaded byo-hadoop client artifacts contains no classes |  Blocker 
| integration tests, jenkins, mapreduce |
+| [HBASE-26896](https://issues.apache.org/jira/browse/HBASE-26896) | 
list\_quota\_snapshots fails with ‘ERROR NameError: uninitialized constant 
Shell::Commands::ListQuotaSnapshots::TABLE’ |  Major | shell |
+| [HBASE-26718](https://issues.apache.org/jira/browse/HBASE-26718) | 
HFileArchiver can remove referenced StoreFiles from the archive |  Major | 
Compaction, HFile, snapshots |
+| [HBASE-26864](https://issues.apache.org/jira/browse/HBASE-26864) | 
SplitTableRegionProcedure calls openParentRegions() at a wrong state during 
rollback. |  Major | Region Assignment |
+| [HBASE-26876](https://issues.apache.org/jira/browse/HBASE-26876) | Use 
toStringBinary for rowkey in RegionServerCallable error string |  Minor | . |
+| [HBASE-26875](https://issues.apache.org/jira/browse/HBASE-26875) | 
RpcRetryingCallerImpl translateException ignores return value of recursive call 
|  Minor | . |
+| [HBASE-26869](https://issues.apache.org/jira/browse/HBASE-26869) | 
RSRpcServices.scan should deep clone cells when RpcCallContext is null |  Major 
| regionserver |
+| [HBASE-26870](https://issues.apache.org/jira/browse/HBASE-26870) | Log4j2 
integration is incorrect in nighly's client integration test |  Critical | 
jenkins, logging |
+| [HBASE-26840](https://issues.apache.org/jira/browse/HBASE-26840) | Fix NPE 
in the retry of logroller |  Minor | wal |
+| [HBASE-26670](https://issues.apache.org/jira/browse/HBASE-26670) | 
HFileLinkCleaner should be added even if snapshot is disabled |  Critical | 
snapshots |
+| [HBASE-26761](https://issues.apache.org/jira/browse/HBASE-26761) | 
TestMobStoreScanner (testGetMassive) can OOME |  Minor | mob, test |
+| [HBASE-26816](https://issues.apache.org/jira/browse/HBASE-26816) | Fix CME 
in ReplicationSourceManager |  Minor | Replication |
+| [HBASE-26715](https://issues.apache.org/jira/browse/HBASE-26715) | Blocked 
on SyncFuture in AsyncProtobufLogWriter#write |  Major | . |
+| [HBASE-26804](https://issues.apache.org/jira/browse/HBASE-26804) | Missing 
opentelemetry agent in hadoop-two-compat.xml |  Blocker | tracing |
+| [HBASE-26815](https://issues.apache.org/jira/browse/HBASE-26815) | 
TestFanOutOneBlockAsyncDFSOutput is flakey |  Major | test |
+| [HBASE-26783](https://issues.apache.org/jira/browse/HBASE-26783) | 
ScannerCallable doubly clears meta cache on retries |  Major | . |
+| [HBASE-26777](https://issues.apache.org/jira/browse/HBASE-26777) | 
BufferedDataBlockEncoder$OffheapDecodedExtendedCell.deepClone throws 
UnsupportedOperationException |  Major | regionserver |
+| [HBASE-26745](https://issues.apache.org/jira/browse/HBASE-26745) | 
MetricsStochasticBalancerSource metrics don't render in /jmx endpoint |  Minor 
| . |
+| [HBASE-26776](https://issues.apache.org/jira/browse/HBASE-26776) | RpcServer 
failure to SASL handshake always logs user "unknown" to audit log |  Major | 
security |
+| [HBASE-26772](https://issues.apache.org/jira/browse/HBASE-26772) | Shell 
suspended in background |  Minor | shell |
+| [HBASE-26767](https://issues.apache.org/jira/browse/HBASE-26767) | Rest 
server should not use a large Header Cache. |  Major | REST |
+| [HBASE-26546](https://issues.apache.org/jira/browse/HBASE-26546) | 
hbase-shaded-client missing required thirdparty classes under hadoop 3.3.1 |  
Major | Client, hadoop3, shading |
+| [HBASE-26727](https://issues.apache.org/jira/browse/HBASE-26727) | Fix 
CallDroppedException reporting |  Minor | . |
+| [HBASE-26712](https://issues.apache.org/jira/browse/HBASE-26712) | Balancer 
encounters NPE in rare case |  Major | . |
+| [HBASE-26742](https://issues.apache.org/jira/browse/HBASE-26742) | 
Comparator of NOT\_EQUAL NULL is invalid for checkAndMutate |  Major | . |
+| [HBASE-26688](https://issues.apache.org/jira/browse/HBASE-26688) | Threads 
shared EMPTY\_RESULT may lead to unexpected client job down. |  Major | Client |
+| [HBASE-26741](https://issues.apache.org/jira/browse/HBASE-26741) | Incorrect 
exception handling in shell |  Critical | shell |
+| [HBASE-26729](https://issues.apache.org/jira/browse/HBASE-26729) | Backport 
"HBASE-26714 Introduce path configuration for system coprocessors" to branch-2 
|  Major | Coprocessors |
+| [HBASE-26713](https://issues.apache.org/jira/browse/HBASE-26713) | 
Increments submitted by 1.x clients will be stored with timestamp 0 on 2.x+ 
clusters |  Major | . |
+| [HBASE-26679](https://issues.apache.org/jira/browse/HBASE-26679) | Wait on 
the future returned by FanOutOneBlockAsyncDFSOutput.flush would stuck |  
Critical | wal |
+| [HBASE-26662](https://issues.apache.org/jira/browse/HBASE-26662) | 
User.createUserForTesting should not reset UserProvider.groups every time if 
hbase.group.service.for.test.only is true |  Major | . |
+| [HBASE-26671](https://issues.apache.org/jira/browse/HBASE-26671) | 
Misspellings of hbck usage |  Minor | hbck |
+| [HBASE-26469](https://issues.apache.org/jira/browse/HBASE-26469) | correct 
HBase shell exit behavior to match code passed to exit |  Critical | shell |
+| [HBASE-26543](https://issues.apache.org/jira/browse/HBASE-26543) | correct 
parsing of hbase shell args with GetoptLong |  Blocker | shell |
+| [HBASE-26643](https://issues.apache.org/jira/browse/HBASE-26643) | 
LoadBalancer should not return empty map |  Critical | proc-v2, Region 
Assignment, test |
+| [HBASE-26646](https://issues.apache.org/jira/browse/HBASE-26646) | WALPlayer 
should obtain token from filesystem |  Minor | . |
+| [HBASE-26494](https://issues.apache.org/jira/browse/HBASE-26494) | Using 
RefCnt to fix the flawed MemStoreLABImpl |  Major | regionserver |
+| [HBASE-26625](https://issues.apache.org/jira/browse/HBASE-26625) | 
ExportSnapshot tool failed to copy data files for tables with merge region |  
Minor | . |
+| [HBASE-26615](https://issues.apache.org/jira/browse/HBASE-26615) | Snapshot 
referenced data files are deleted when delete a table with merge regions |  
Major | . |
+| [HBASE-26613](https://issues.apache.org/jira/browse/HBASE-26613) | The logic 
of the method incrementIV in Encryption class has problem |  Major | 
Performance, security |
+| [HBASE-26488](https://issues.apache.org/jira/browse/HBASE-26488) | Memory 
leak when MemStore retry flushing |  Major | regionserver |
+| [HBASE-26340](https://issues.apache.org/jira/browse/HBASE-26340) | 
TableSplit returns false size under 1MB |  Major | mapreduce, regionserver |
+| [HBASE-26537](https://issues.apache.org/jira/browse/HBASE-26537) | 
FuzzyRowFilter backwards compatibility |  Major | . |
+| [HBASE-26550](https://issues.apache.org/jira/browse/HBASE-26550) | Make sure 
the master is running normally before accepting a balance command |  Minor | 
Balancer, master |
+| [HBASE-26541](https://issues.apache.org/jira/browse/HBASE-26541) | 
hbase-protocol-shaded not buildable on M1 MacOSX |  Major | . |
+| [HBASE-26527](https://issues.apache.org/jira/browse/HBASE-26527) | 
ArrayIndexOutOfBoundsException in KeyValueUtil.copyToNewKeyValue() |  Major | 
wal |
+| [HBASE-26462](https://issues.apache.org/jira/browse/HBASE-26462) | Should 
persist restoreAcl flag in the procedure state for CloneSnapshotProcedure and 
RestoreSnapshotProcedure |  Critical | proc-v2, snapshots |
+| [HBASE-26535](https://issues.apache.org/jira/browse/HBASE-26535) | [site, 
branch-2] DependencyManagement report is broken |  Blocker | build, pom |
+| [HBASE-26533](https://issues.apache.org/jira/browse/HBASE-26533) | 
KeyValueScanner might not be properly closed when using 
InternalScan.checkOnlyMemStore() |  Minor | . |
+| [HBASE-26482](https://issues.apache.org/jira/browse/HBASE-26482) | HMaster 
may clean wals that is replicating in rare cases |  Critical | Replication |
+| [HBASE-26468](https://issues.apache.org/jira/browse/HBASE-26468) | Region 
Server doesn't exit cleanly incase it crashes. |  Major | regionserver |
+| [HBASE-25905](https://issues.apache.org/jira/browse/HBASE-25905) | Shutdown 
of WAL stuck at waitForSafePoint |  Blocker | regionserver, wal |
+| [HBASE-26455](https://issues.apache.org/jira/browse/HBASE-26455) | 
TestStochasticLoadBalancerRegionReplicaWithRacks fails consistently |  Major | 
Balancer |
+| [HBASE-26450](https://issues.apache.org/jira/browse/HBASE-26450) | Server 
configuration will overwrite HStore configuration after using shell command 
'update\_config' |  Minor | Compaction, conf, regionserver |
+| [HBASE-26476](https://issues.apache.org/jira/browse/HBASE-26476) | Make 
DefaultMemStore extensible for HStore.memstore |  Major | regionserver |
+| [HBASE-26465](https://issues.apache.org/jira/browse/HBASE-26465) | 
MemStoreLAB may be released early when its SegmentScanner is scanning |  
Critical | regionserver |
+| [HBASE-26467](https://issues.apache.org/jira/browse/HBASE-26467) | Wrong 
Cell Generated by MemStoreLABImpl.forceCopyOfBigCellInto when Cell size bigger 
than data chunk size |  Critical | in-memory-compaction |
+| [HBASE-26463](https://issues.apache.org/jira/browse/HBASE-26463) | 
Unreadable table names after HBASE-24605 |  Trivial | UI |
+| [HBASE-26438](https://issues.apache.org/jira/browse/HBASE-26438) | Fix  
flaky test TestHStore.testCompactingMemStoreCellExceedInmemoryFlushSize |  
Major | test |
+| [HBASE-26436](https://issues.apache.org/jira/browse/HBASE-26436) | 
check-aggregate-license error related to javadns after HADOOP-17317 |  Major | 
build, hadoop3 |
+| [HBASE-26311](https://issues.apache.org/jira/browse/HBASE-26311) | Balancer 
gets stuck in cohosted replica distribution |  Major | Balancer |
+| [HBASE-26384](https://issues.apache.org/jira/browse/HBASE-26384) | Segment 
already flushed to hfile may still be remained in CompactingMemStore |  Major | 
in-memory-compaction |
+| [HBASE-26414](https://issues.apache.org/jira/browse/HBASE-26414) | Tracing 
INSTRUMENTATION\_NAME is incorrect |  Blocker | tracing |
+| [HBASE-26410](https://issues.apache.org/jira/browse/HBASE-26410) | Fix HBase 
TestCanaryTool for Java17 |  Major | java |
+| [HBASE-26429](https://issues.apache.org/jira/browse/HBASE-26429) | 
HeapMemoryManager fails memstore flushes with NPE if enabled |  Major | 
Operability, regionserver |
+| [HBASE-26404](https://issues.apache.org/jira/browse/HBASE-26404) | Update 
javadoc for CellUtil#createCell  with tags methods. |  Major | . |
+| [HBASE-26398](https://issues.apache.org/jira/browse/HBASE-26398) | 
CellCounter fails for large tables filling up local disk |  Minor | mapreduce |
+| [HBASE-26190](https://issues.apache.org/jira/browse/HBASE-26190) | High rate 
logging of BucketAllocatorException: Allocation too big |  Major | BucketCache, 
Operability |
+| [HBASE-26392](https://issues.apache.org/jira/browse/HBASE-26392) | Update 
ClassSize.BYTE\_BUFFER for JDK17 |  Major | java, util |
+| [HBASE-26394](https://issues.apache.org/jira/browse/HBASE-26394) | Cache in 
RSRpcServices.executeProcedures does not take effect |  Major | . |
+| [HBASE-26385](https://issues.apache.org/jira/browse/HBASE-26385) | Clear 
CellScanner when replay |  Major | regionserver, rpc |
+| [HBASE-26383](https://issues.apache.org/jira/browse/HBASE-26383) | HBCK 
incorrectly reports inconsistencies for recently split regions following a 
master failover |  Critical | master |
+| [HBASE-26371](https://issues.apache.org/jira/browse/HBASE-26371) | 
Prioritize meta region move over other region moves in region\_mover |  Major | 
. |
+| [HBASE-26361](https://issues.apache.org/jira/browse/HBASE-26361) | Enable 
OpenTelemetry to be used from developer sandbox |  Major | tracing |
+| [HBASE-26364](https://issues.apache.org/jira/browse/HBASE-26364) | 
TestThriftServer is failing 100% in our flaky test job |  Major | test, Thrift |
+| [HBASE-26350](https://issues.apache.org/jira/browse/HBASE-26350) | Missing 
server side debugging on failed SASL handshake |  Minor | . |
+| [HBASE-26344](https://issues.apache.org/jira/browse/HBASE-26344) | Fix Bug 
for MultiByteBuff.put(int, byte) |  Major | . |
+| [HBASE-26312](https://issues.apache.org/jira/browse/HBASE-26312) | Shell 
scan fails with timestamp |  Major | shell, test |
+| [HBASE-24601](https://issues.apache.org/jira/browse/HBASE-24601) | Change 
default Hfile storage policy from HOT to NONE for HDFS |  Major | HFile |
+| [HBASE-26295](https://issues.apache.org/jira/browse/HBASE-26295) | 
BucketCache could not free BucketEntry which restored from persistence file |  
Major | BucketCache |
+| [HBASE-26289](https://issues.apache.org/jira/browse/HBASE-26289) | Hbase 
scan setMaxResultsPerColumnFamily not giving right results |  Major | 
regionserver |
+| [HBASE-26299](https://issues.apache.org/jira/browse/HBASE-26299) | Fix 
TestHTableTracing.testTableClose for nightly build of branch-2 |  Major | test, 
tracing |
+| [HBASE-26238](https://issues.apache.org/jira/browse/HBASE-26238) | OOME in 
VerifyReplication for the table contains rows with 10M+ cells |  Major | 
Client, Replication |
+| [HBASE-26297](https://issues.apache.org/jira/browse/HBASE-26297) | Balancer 
run is improperly triggered by accuracy error of double comparison |  Major | 
Balancer |
+| [HBASE-26178](https://issues.apache.org/jira/browse/HBASE-26178) | Improve 
data structure and algorithm for BalanceClusterState to improve computation 
speed for large cluster |  Major | Balancer, Performance |
+| [HBASE-26274](https://issues.apache.org/jira/browse/HBASE-26274) | Create an 
option to reintroduce BlockCache to mapreduce job |  Major | BlockCache, HFile, 
mapreduce |
+| [HBASE-26261](https://issues.apache.org/jira/browse/HBASE-26261) | Store 
configuration loss when use update\_config |  Minor | . |
+| [HBASE-26281](https://issues.apache.org/jira/browse/HBASE-26281) | DBB got 
from BucketCache would be freed unexpectedly before RPC completed |  Critical | 
BucketCache |
+| [HBASE-26197](https://issues.apache.org/jira/browse/HBASE-26197) | Fix some 
obvious bugs in MultiByteBuff.put |  Major | . |
+| [HBASE-26106](https://issues.apache.org/jira/browse/HBASE-26106) | 
AbstractFSWALProvider#getArchivedLogPath doesn't look for wal file in all 
oldWALs directory. |  Critical | wal |
+| [HBASE-26205](https://issues.apache.org/jira/browse/HBASE-26205) | 
TableMRUtil#initCredentialsForCluster should use specified conf for 
UserProvider |  Major | mapreduce |
+| [HBASE-26210](https://issues.apache.org/jira/browse/HBASE-26210) | HBase 
Write should be doomed to hang when cell size exceeds InmemoryFlushSize for 
CompactingMemStore |  Critical | in-memory-compaction |
+| [HBASE-26244](https://issues.apache.org/jira/browse/HBASE-26244) | Avoid 
trim the error stack trace when running UT with maven |  Major | . |
+| [HBASE-25588](https://issues.apache.org/jira/browse/HBASE-25588) | Excessive 
logging of "hbase.zookeeper.useMulti is deprecated. Default to true always." |  
Minor | logging, Operability, Replication |
+| [HBASE-26232](https://issues.apache.org/jira/browse/HBASE-26232) | 
SEEK\_NEXT\_USING\_HINT is ignored on reversed Scans |  Critical | Filters, 
scan |
+| [HBASE-26204](https://issues.apache.org/jira/browse/HBASE-26204) | 
VerifyReplication should obtain token for peerQuorumAddress too |  Major | . |
+| [HBASE-26219](https://issues.apache.org/jira/browse/HBASE-26219) | Negative 
time is logged while waiting on regionservers |  Trivial | . |
+| [HBASE-26087](https://issues.apache.org/jira/browse/HBASE-26087) | JVM crash 
when displaying RPC params by MonitoredRPCHandler |  Major | UI |
+| [HBASE-24570](https://issues.apache.org/jira/browse/HBASE-24570) | 
connection#close throws NPE |  Minor | Client |
+| [HBASE-26200](https://issues.apache.org/jira/browse/HBASE-26200) | Undo 
'HBASE-25165 Change 'State time' in UI so sorts (#2508)' in favor of 
HBASE-24652 |  Major | UI |
+| [HBASE-26196](https://issues.apache.org/jira/browse/HBASE-26196) | Support 
configuration override for remote cluster of HFileOutputFormat locality 
sensitive |  Major | mapreduce |
+| [HBASE-26026](https://issues.apache.org/jira/browse/HBASE-26026) | HBase 
Write may be stuck forever when using CompactingMemStore |  Critical | 
in-memory-compaction |
+| [HBASE-26155](https://issues.apache.org/jira/browse/HBASE-26155) | JVM crash 
when scan |  Major | Scanners |
+| [HBASE-26176](https://issues.apache.org/jira/browse/HBASE-26176) | Correct 
regex in hbase-personality.sh |  Minor | build |
+| [HBASE-26142](https://issues.apache.org/jira/browse/HBASE-26142) | 
NullPointerException when set 
'hbase.hregion.memstore.mslab.indexchunksize.percent' to zero |  Critical | . |
+| [HBASE-25651](https://issues.apache.org/jira/browse/HBASE-25651) | 
NORMALIZER\_TARGET\_REGION\_SIZE needs a unit in its name |  Major | Normalizer 
|
+| [HBASE-26166](https://issues.apache.org/jira/browse/HBASE-26166) | table 
list in master ui has a minor bug |  Minor | UI |
+| [HBASE-26114](https://issues.apache.org/jira/browse/HBASE-26114) | when 
“hbase.mob.compaction.threads.max” is set to a negative number, HMaster 
cannot start normally |  Minor | master |
+| [HBASE-26120](https://issues.apache.org/jira/browse/HBASE-26120) | New 
replication gets stuck or data loss when multiwal groups more than 10 |  
Critical | Replication |
+| [HBASE-26001](https://issues.apache.org/jira/browse/HBASE-26001) | When turn 
on access control, the cell level TTL of Increment and Append operations is 
invalid. |  Minor | Coprocessors |
+| [HBASE-24984](https://issues.apache.org/jira/browse/HBASE-24984) | WAL 
corruption due to early DBBs re-use when Durability.ASYNC\_WAL is used with 
multi operation |  Critical | rpc, wal |
+| [HBASE-26088](https://issues.apache.org/jira/browse/HBASE-26088) | 
conn.getBufferedMutator(tableName) leaks thread executors and other problems |  
Critical | Client |
+| [HBASE-25973](https://issues.apache.org/jira/browse/HBASE-25973) | Balancer 
should explain progress in a better way in log |  Major | Balancer |
+| [HBASE-26086](https://issues.apache.org/jira/browse/HBASE-26086) | 
TestHRegionReplayEvents do not pass in branch-2 and throws NullPointerException 
|  Minor | . |
+| [HBASE-26036](https://issues.apache.org/jira/browse/HBASE-26036) | DBB 
released too early and dirty data for some operations |  Critical | rpc |
+| [HBASE-26068](https://issues.apache.org/jira/browse/HBASE-26068) | The last 
assertion in TestHStore.testRefreshStoreFilesNotChanged is wrong |  Major | 
test |
+| [HBASE-22923](https://issues.apache.org/jira/browse/HBASE-22923) | 
hbase:meta is assigned to localhost when we downgrade the hbase version |  
Major | . |
+| [HBASE-26063](https://issues.apache.org/jira/browse/HBASE-26063) | The 
current checkcompatibility.py script can not compare master and rel/2.0.0 |  
Blocker | scripts |
+| [HBASE-26030](https://issues.apache.org/jira/browse/HBASE-26030) | 
hbase-cleanup.sh did not clean the wal dir if hbase.wal.dir configured 
individually |  Major | scripts |

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