Added: dev/hbase/2.5.3RC0/CHANGES.md ============================================================================== --- dev/hbase/2.5.3RC0/CHANGES.md (added) +++ dev/hbase/2.5.3RC0/CHANGES.md Wed Jan 25 09:43:02 2023 @@ -0,0 +1,8145 @@ + +<!--- +# 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 2023-01-25) + + + +### 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 | + + +### 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-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 | + + +### SUB-TASKS: + +| JIRA | Summary | Priority | Component | +|:---- |:---- | :--- |:---- | +| [HBASE-27557](https://issues.apache.org/jira/browse/HBASE-27557) | [JDK17] Update shade plugin version | 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-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 | + + +## 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 âcommons.crypto.stream.buffer.sizeâ 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) | AsyncNonMetaRegionLocatorï¼put 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 fileâs 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 âERROR NameError: uninitialized constant Shell::Commands::ListQuotaSnapshots::TABLEâ | 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 âhbase.mob.compaction.threads.maxâ 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 | +| [HBASE-26035](https://issues.apache.org/jira/browse/HBASE-26035) | Redundant null check in the compareTo function | Minor | metrics, Performance | +| [HBASE-25902](https://issues.apache.org/jira/browse/HBASE-25902) | Add missing CFs in meta during HBase 1 to 2.3+ Upgrade | Critical | meta, Operability | +| [HBASE-26028](https://issues.apache.org/jira/browse/HBASE-26028) | The view as json page shows exception when using TinyLfuBlockCache | Major | UI | +| [HBASE-26029](https://issues.apache.org/jira/browse/HBASE-26029) | It is not reliable to use nodeDeleted event to track region server's death | Critical | Replication, Zookeeper | +| [HBASE-26039](https://issues.apache.org/jira/browse/HBASE-26039) | TestReplicationKillRS is useless after HBASE-23956 | Major | Replication, test | +| [HBASE-25980](https://issues.apache.org/jira/browse/HBASE-25980) | Master table.jsp pointed at meta throws 500 when no all replicas are online | Major | master, meta replicas, UI | +| [HBASE-26013](https://issues.apache.org/jira/browse/HBASE-26013) | Get operations readRows metrics becomes zero after HBASE-25677 | Minor | metrics | +| [HBASE-25966](https://issues.apache.org/jira/browse/HBASE-25966) | Fix typo in NOTICE.vm | Major | build, community | +| [HBASE-25877](https://issues.apache.org/jira/browse/HBASE-25877) | Add access check for compactionSwitch | Major | security | +| [HBASE-25698](https://issues.apache.org/jira/browse/HBASE-25698) | Persistent IllegalReferenceCountException at scanner open when using TinyLfuBlockCache | Major | BucketCache, HFile, Scanners | +| [HBASE-25984](https://issues.apache.org/jira/browse/HBASE-25984) | FSHLog WAL lockup with sync future reuse [RS deadlock] | Critical | regionserver, wal | +| [HBASE-25994](https://issues.apache.org/jira/browse/HBASE-25994) | Active WAL tailing fails when WAL value compression is enabled | Major | . |
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