CDH 5.13.2 Release Notes

Changes Not In Apache HBase 1.2.0

HBase

Bug

• [HBASE-18625] - Splitting of region with replica, doesn't update region list in serverHolding. A server crash leads to overlap.
• [HBASE-14252] - RegionServers fail to start when setting hbase.ipc.server.callqueue.scan.ratio to 0
• [HBASE-16980] - TestRowProcessorEndpoint failing consistently
• [HBASE-19215] - Incorrect exception handling on the client causes incorrect call timeouts and byte buffer allocations on the server
• [HBASE-18505] - Our build/yetus personality will run tests on individual modules and then on all (i.e. 'root'). Should do one or other
• [HBASE-18568] - Correct metric of numRegions
• [HBASE-18577] - shaded client includes several non-relocated third party dependencies
• [HBASE-18212] - In Standalone mode with local filesystem HBase logs Warning message:Failed to invoke 'unbuffer' method in class class org.apache.hadoop.fs.FSDataInputStream
• [HBASE-18665] - ReversedScannerCallable invokes getRegionLocations incorrectly
• [HBASE-18487] - Minor fixes in row lock implementation
• [HBASE-16090] - ResultScanner is not closed in SyncTable#finishRemainingHashRanges()
• [HBASE-18099] - FlushSnapshotSubprocedure should wait for concurrent Region#flush() to finish
• [HBASE-17341] - Add a timeout during replication endpoint termination
• [HBASE-18024] - HRegion#initializeRegionInternals should not re-create .hregioninfo file when the region directory no longer exists
• [HBASE-18390] - Sleep too long when finding region location failed
• [HBASE-18230] - Generated LICENSE file includes unsubstituted Velocity variables
• [HBASE-18005] - read replica: handle the case that region server hosting both primary replica and meta region is down
• [HBASE-18025] - CatalogJanitor should collect outdated RegionStates from the AM
• [HBASE-18081] - The way we process connection preamble in SimpleRpcServer is broken
• [HBASE-17352] - Fix hbase-assembly build with bash 4
• [HBASE-18137] - Replication gets stuck for empty WALs
• [HBASE-18255] - Time-Delayed HBase Performance Degradation with Java 7
• [HBASE-18066] - Get with closest_row_before on "hbase:meta" can return empty Cell during region merge/split
• [HBASE-17904] - Get runs into NoSuchElementException when using Read Replica, with hbase. ipc.client.specificThreadForWriting to be true and hbase.rpc.client.impl to be org.apache.hadoop.hbase.ipc.RpcClientImpl
• [HBASE-18122] - Scanner id should include ServerName of region server
• [HBASE-18192] - Replication drops recovered queues on region server shutdown
• [HBASE-17287] - Master becomes a zombie if filesystem object closes
• [HBASE-18030] - Per Cell TTL tags may get duplicated with increments/Append causing tags length overflow
• [HBASE-18036] - HBase 1.x : Data locality is not maintained after cluster restart or SSH
• [HBASE-17698] - ReplicationEndpoint choosing sinks
• [HBASE-17534] - SecureBulkLoadClient squashes DoNotRetryIOExceptions from the server
• [HBASE-17648] - HBase Table-level synchronization fails between two secured(kerberized) clusters
• [HBASE-15548] - SyncTable: sourceHashDir is supposed to be optional but won't work without
• [HBASE-18035] - Meta replica does not give any primaryOperationTimeout to primary meta region
• [HBASE-18077] - Update JUnit license to EPL from CPL
• [HBASE-9393] - Hbase does not closing a closed socket resulting in many CLOSE_WAIT
• [HBASE-18247] - Hbck to fix the case that replica region shows as key in the meta table
• [HBASE-18362] - hbck should not report split replica parent region from meta as errors
• [HBASE-18185] - IntegrationTestTimeBoundedRequestsWithRegionReplicas unbalanced tests fails with AssertionError
• [HBASE-17131] - Avoid livelock caused by HRegion#processRowsWithLocks
• [HBASE-17587] - Do not Rethrow DoNotRetryIOException as UnknownScannerException
• [HBASE-16739] - Timed out exception message should include encoded region name
• [HBASE-17773] - VerifyReplication tool wrongly emits warning "ERROR: Invalid argument '--recomparesleep=xx'"
• [HBASE-16409] - Row key for bad row should be properly delimited in VerifyReplication
• [HBASE-16045] - endtime argument for VerifyReplication was incorrectly specified in usage
• [HBASE-17574] - Clean up how to run tests under hbase-spark module
• [HBASE-17501] - NullPointerException after Datanodes Decommissioned and Terminated
• [HBASE-17736] - Some options can't be configured by the shell
• [HBASE-17970] - Set yarn.app.mapreduce.am.staging-dir when starting MiniMRCluster
• [HBASE-16775] - Flakey test with TestExportSnapshot#testExportRetry and TestMobExportSnapshot#testExportRetry
• [HBASE-17682] - Region stuck in merging_new state indefinitely
• [HBASE-17798] - RpcServer.Listener.Reader can abort due to CancelledKeyException
• [HBASE-16630] - Fragmentation in long running Bucket Cache
• [HBASE-17764] - Solve TestMultiSlaveReplication flakiness
• [HBASE-17673] - Monitored RPC Handler not shown in the WebUI
• [HBASE-17803] - PE always re-creates table when we specify the split policy
• [HBASE-17710] - HBase in standalone mode creates directories with 777 permission
• [HBASE-17688] - MultiRowRangeFilter not working correctly if given same start and stop RowKey
• [HBASE-17729] - Missing shortcuts for some useful HCD options
• [HBASE-17712] - Remove/Simplify the logic of RegionScannerImpl.handleFileNotFound
• [HBASE-17761] - Test TestRemoveRegionMetrics.testMoveRegion fails intermittently because of race condition
• [HBASE-17722] - Metrics subsystem stop/start messages add a lot of useless bulk to operational logging
• [HBASE-17780] - BoundedByteBufferPool "At capacity" messages are not actionable
• [HBASE-17717] - Incorrect ZK ACL set for HBase superuser
• [HBASE-17779] - disable_table_replication returns misleading message and does not turn off replication
• [HBASE-17460] - enable_table_replication can not perform cyclic replication of a table
• [HBASE-17772] - IntegrationTestRSGroup won't run
• [HBASE-14968] - ConcurrentModificationException in region close resulting in the region staying in closing state
• [HBASE-17792] - Use a shared thread pool for AtomicityWriter, AtomicGetReader, AtomicScanReader's connections in TestAcidGuarantees
• [HBASE-16368] - test*WhenRegionMove in TestPartialResultsFromClientSide is flaky
• [HBASE-16754] - Regions failing compaction due to referencing non-existent store file
• [HBASE-16931] - Setting cell's seqId to zero in compaction flow might cause RS down.
• [HBASE-17328] - Properly dispose of looped replication peers
• [HBASE-16960] - RegionServer hang when aborting
• [HBASE-16663] - JMX ConnectorServer stopped when unauthorized user try to stop HM/RS/cluster
• [HBASE-16721] - Concurrency issue in WAL unflushed seqId tracking
• [HBASE-15955] - Disable action in CatalogJanitor#setEnabled should wait for active cleanup scan to finish
• [HBASE-15125] - HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary
• [HBASE-16032] - Possible memory leak in StoreScanner
• [HBASE-16604] - Scanner retries on IOException can cause the scans to miss data
• [HBASE-17265] - Region left unassigned in master failover when region failed to open
• [HBASE-12949] - Scanner can be stuck in infinite loop if the HFile is corrupted
• [HBASE-16238] - It's useless to catch SESSIONEXPIRED exception and retry in RecoverableZooKeeper
• [HBASE-16807] - RegionServer will fail to report new active Hmaster until HMaster/RegionServer failover
• [HBASE-17675] - ReplicationEndpoint should choose new sinks if a SaslException occurs
• [HBASE-17069] - RegionServer writes invalid META entries for split daughters in some circumstances
• [HBASE-16289] - AsyncProcess stuck messages need to print region/server
• [HBASE-16765] - New SteppingRegionSplitPolicy, avoid too aggressive spread of regions for small tables.
• [HBASE-16429] - FSHLog: deadlock if rollWriter called when ring buffer filled with appends
• [HBASE-16304] - HRegion#RegionScannerImpl#handleFileNotFoundException may lead to deadlock when trying to obtain write lock on updatesLock
• [HBASE-16062] - Improper error handling in WAL Reader/Writer creation
• [HBASE-17023] - Region left unassigned due to AM and SSH each thinking others would do the assignment work
• [HBASE-15587] - FSTableDescriptors.getDescriptor() logs stack trace erronously
• [HBASE-15613] - TestNamespaceCommand times out
• [HBASE-17044] - Fix merge failed before creating merged region leaves meta inconsistent
• [HBASE-17206] - FSHLog may roll a new writer successfully with unflushed entries
• [HBASE-15325] - ResultScanner allowing partial result will miss the rest of the row if the region is moved between two rpc requests
• [HBASE-15645] - hbase.rpc.timeout is not used in operations of HTable
• [HBASE-16662] - Fix open POODLE vulnerabilities
• [HBASE-17624] - Address late review of HBASE-6721, rsgroups feature
• [HBASE-15441] - Fix WAL splitting when region has moved multiple times
• [HBASE-15322] - Operations using Unsafe path broken for platforms not having sun.misc.Unsafe
• [HBASE-16649] - Truncate table with splits preserved can cause both data loss and truncated data appeared again
• [HBASE-16527] - IOExceptions from DFS client still can cause CatalogJanitor to delete referenced files
• [HBASE-17238] - Wrong in-memory hbase:meta location causing SSH failure
• [HBASE-16165] - Decrease RpcServer.callQueueSize before writeResponse causes OOM
• [HBASE-17275] - Assign timeout may cause region to be unassigned forever
• [HBASE-17381] - ReplicationSourceWorkerThread can die due to unhandled exceptions
• [HBASE-15295] - MutateTableAccess.multiMutate() does not get high priority causing a deadlock
• [HBASE-17677] - ServerName parsing from directory name should be more robust to errors from guava's HostAndPort
• [HBASE-16460] - Can't rebuild the BucketAllocator's data structures when BucketCache uses FileIOEngine
• [HBASE-17020] - keylen in midkey() dont computed correctly
• [HBASE-16237] - Blocks for hbase:meta table are not cached in L1 cache
• [HBASE-15328] - Unvalidated Redirect in HMaster
• [HBASE-17640] - Unittest error in TestMobCompactor with different timezone
• [HBASE-17558] - ZK dumping jsp should escape html
• [HBASE-15378] - Scanner cannot handle heartbeat message with no results
• [HBASE-17522] - RuntimeExceptions from MemoryMXBean should not take down server process
• [HBASE-17452] - Failed taking snapshot - region Manifest proto-message too large
• [HBASE-17309] - Fix connection leaks in TestAcidGuarantees
• [HBASE-16841] - Data loss in MOB files after cloning a snapshot and deleting that snapshot
• [HBASE-17072] - CPU usage starts to climb up to 90-100% when using G1GC; purge ThreadLocal usage
• [HBASE-15769] - Perform validation on cluster key for add_peer
• [HBASE-15393] - Enable table replication command will fail when parent znode is not default in peer cluster
• [HBASE-15324] - Jitter may cause desiredMaxFileSize overflow in ConstantSizeRegionSplitPolicy and trigger unexpected split
• [HBASE-15430] - Failed taking snapshot - Manifest proto-message too large
• [HBASE-16345] - RpcRetryingCallerWithReadReplicas#call() should catch some RegionServer Exceptions
• [HBASE-16172] - Unify the retry logic in ScannerCallableWithReplicas and RpcRetryingCallerWithReadReplicas
• [HBASE-16270] - Handle duplicate clearing of snapshot in region replicas
• [HBASE-16824] - Writer.flush() can be called on already closed streams in WAL roll
• [HBASE-16699] - Overflows in AverageIntervalRateLimiter's refill() and getWaitInterval()
• [HBASE-16767] - Mob compaction needs to clean up files in /hbase/mobdir/.tmp and /hbase/mobdir/.tmp/.bulkload when running into IO exceptions
• [HBASE-16294] - hbck reporting "No HDFS region dir found" for replicas
• [HBASE-15297] - error message is wrong when a wrong namspace is specified in grant in hbase shell
• [HBASE-15856] - Cached Connection instances can wind up with addresses never resolved
• [HBASE-16490] - Fix race condition between SnapshotManager and SnapshotCleaner
• [HBASE-16195] - Should not add chunk into chunkQueue if not using chunk pool in HeapMemStoreLAB
• [HBASE-16194] - Should count in MSLAB chunk allocation into heap size change when adding duplicate cells
• [HBASE-16464] - archive folder grows bigger and bigger due to corrupt snapshot under tmp dir
• [HBASE-16284] - Unauthorized client can shutdown the cluster
• [HBASE-16360] - TableMapReduceUtil addHBaseDependencyJars has the wrong class name for PrefixTreeCodec
• [HBASE-16135] - PeerClusterZnode under rs of removed peer may never be deleted
• [HBASE-16288] - HFile intermediate block level indexes might recurse forever creating multi TB files
• [HBASE-16096] - Replication keeps accumulating znodes
• [HBASE-16207] - can't restore snapshot without "Admin" permission
• [HBASE-16227] - [Shell] Column value formatter not working in scans
• [HBASE-14818] - user_permission does not list namespace permissions
• [HBASE-15465] - userPermission returned by getUserPermission() for the selected namespace does not have namespace set
• [HBASE-16093] - Splits failed before creating daughter regions leave meta inconsistent
• [HBASE-16035] - Nested AutoCloseables might not all get closed
• [HBASE-15891] - Closeable resources potentially not getting closed if exception is thrown
• [HBASE-14644] - Region in transition metric is broken
• [HBASE-15746] - Remove extra RegionCoprocessor preClose() in RSRpcServices#closeRegion
• [HBASE-15873] - ACL for snapshot restore / clone is not enforced
• [HBASE-15946] - Eliminate possible security concerns in RS web UI's store file metrics
• [HBASE-15925] - compat-module maven variable not evaluated
• [HBASE-15889] - String case conversions are locale-sensitive, used without locale
• [HBASE-15698] - Increment TimeRange not serialized to server
• [HBASE-15621] - Suppress Hbase SnapshotHFile cleaner error messages when a snaphot is going on
• [HBASE-11625] - Reading datablock throws "Invalid HFile block magic" and can not switch to hdfs checksum
• [HBASE-15236] - Inconsistent cell reads over multiple bulk-loaded HFiles
• [HBASE-15622] - Superusers does not consider the keytab credentials
• [HBASE-11403] - Fix race conditions around Object#notify
• [HBASE-15439] - getMaximumAllowedTimeBetweenRuns in ScheduledChore ignores the TimeUnit
• [HBASE-15707] - ImportTSV bulk output does not support tags with hfile.format.version=3
• [HBASE-15673] - [PE tool] Fix latency metrics for multiGet
• [HBASE-15405] - Synchronize final results logging single thread in PE, fix wrong defaults in help message
• [HBASE-15591] - ServerCrashProcedure not yielding
• [HBASE-15582] - SnapshotManifestV1 too verbose when there are no regions
• [HBASE-15234] - ReplicationLogCleaner can abort due to transient ZK issues
• [HBASE-15271] - Spark Bulk Load: Need to write HFiles to tmp location then rename to protect from Spark Executor Failures
• [HBASE-15184] - SparkSQL Scan operation doesn't work on kerberos cluster
• [HBASE-15310] - hbase-spark module has compilation failures with clover profile
• [HBASE-14991] - Fix the feature warning in scala code
• [HBASE-14894] - Fix misspellings of threshold in log4j.properties files for tests
• [HBASE-14406] - The dataframe datasource filter is wrong, and will result in data loss or unexpected behavior
• [HBASE-14377] - JavaHBaseContextSuite not being run
• [HBASE-12749] - Tighten HFileLink api to enable non-snapshot uses
• [HBASE-14302] - TableSnapshotInputFormat should not create back references when restoring snapshot
• [HBASE-6778] - Deprecate Chore; its a thread per task when we should have one thread to do all tasks
• [HBASE-14098] - Allow dropping caches behind compactions
• [HBASE-13737] - [HBase MOB] MOBTable cloned from a snapshot leads to data loss, when that actual snapshot and main table is deleted.
• [HBASE-13230] - [mob] reads hang when trying to read rows with large mobs (>10MB)
• [HBASE-12540] - TestRegionServerMetrics#testMobMetrics test failure
• [HBASE-12201] - Close the writers in the MOB sweep tool
• [HBASE-12030] - Wrong compaction report and assert when MOB compaction switches to minor
• [HBASE-12027] - The ZooKeeperWatcher in HMobStore only uses the default conf
• [HBASE-11968] - If MOB is enabled, it should make sure hfile v3 is being used.
• [HBASE-10018] - Remove region location prefetching
• [HBASE-10123] - Change default ports; move them out of linux ephemeral port range
• [HBASE-15095] - isReturnResult=false on fast path in branch-1.1 and branch-1.0 is not respected

Improvement

• [HBASE-18675] - Making {max,min}SessionTimeout configurable for MiniZooKeeperCluster
• [HBASE-17047] - Add an API to get HBase connection cache statistics
• [HBASE-16638] - Reduce the number of Connection's created in classes of hbase-spark module
• [HBASE-16351] - do dependency license check via enforcer plugin
• [HBASE-12770] - Don't transfer all the queued hlogs of a dead server to the same alive server
• [HBASE-18021] - Add more info in timed out RetriesExhaustedException for read replica client get processing,
• [HBASE-15720] - Print row locks at the debug dump page
• [HBASE-16033] - Add more details in logging of responseTooSlow/TooLarge
• [HBASE-16772] - Add verbose option to VerifyReplication for logging good rows
• [HBASE-16423] - Add re-compare option to VerifyReplication to avoid occasional inconsistent rows
• [HBASE-15837] - Memstore size accounting is wrong if postBatchMutate() throws exception
• [HBASE-16977] - VerifyReplication should log a printable representation of the row keys
• [HBASE-17731] - Fractional latency reporting in MultiThreadedAction
• [HBASE-17877] - Improve HBase's byte[] comparator
• [HBASE-15941] - HBCK repair should not unsplit healthy splitted region
• [HBASE-16052] - Improve HBaseFsck Scalability
• [HBASE-16561] - Add metrics about read/write/scan queue length and active read/write/scan handler count
• [HBASE-15353] - Add metric for number of CallQueueTooBigException's
• [HBASE-14983] - Create metrics for per block type hit/miss ratios
• [HBASE-16266] - Do not throw ScannerTimeoutException when catch UnknownScannerException
• [HBASE-17654] - RSGroup code refactoring
• [HBASE-15315] - Remove always set super user call as high priority
• [HBASE-17561] - table status page should escape values that may contain arbitrary characters.
• [HBASE-17409] - Re-fix XSS request issue in JMXJsonServlet
• [HBASE-17243] - Reuse CompactionPartitionId and avoid creating MobFileName in PartitionedMobCompactor to avoid unnecessary new objects
• [HBASE-17437] - Support specifying a WAL directory outside of the root directory
• [HBASE-17241] - Avoid compacting already compacted mob files with _del files
• [HBASE-12940] - Expose listPeerConfigs and getPeerConfig to the HBase shell
• [HBASE-15507] - Online modification of enabled ReplicationPeerConfig
• [HBASE-15396] - Enhance mapreduce.TableSplit to add encoded region name
• [HBASE-15526] - Make SnapshotManager accessible through MasterServices
• [HBASE-16450] - Shell tool to dump replication queues
• [HBASE-16379] - [replication] Minor improvement to replication/copy_tables_desc.rb
• [HBASE-15808] - Reduce potential bulk load intermediate space usage and waste
• [HBASE-14963] - Remove use of Guava Stopwatch from HBase client code
• [HBASE-16140] - bump owasp.esapi from 2.1.0 to 2.1.0.1
• [HBASE-15496] - Throw RowTooBigException only for user scan/get
• [HBASE-15663] - Hook up JvmPauseMonitor to ThriftServer
• [HBASE-15662] - Hook up JvmPauseMonitor to REST server
• [HBASE-15614] - Report metrics from JvmPauseMonitor
• [HBASE-15222] - Use less contended classes for metrics
• [HBASE-13532] - Make UnknownScannerException logging less scary
• [HBASE-15415] - Improve Master WebUI snapshot information
• [HBASE-15791] - Improve javadoc in ScheduledChore
• [HBASE-15456] - CreateTableProcedure/ModifyTableProcedure needs to fail when there is no family in table descriptor
• [HBASE-15479] - No more garbage or beware of autoboxing
• [HBASE-15413] - Procedure-V2: print out ProcedureInfo during trace
• [HBASE-15349] - Update surefire version to 2.19.1
• [HBASE-14719] - Add metric for number of MasterProcWALs
• [HBASE-12769] - Replication fails to delete all corresponding zk nodes when peer is removed
• [HBASE-15282] - Bump hbase-spark to use Spark 1.6.0
• [HBASE-15201] - Add hbase-spark to hbase assembly
• [HBASE-14159] - Resolve warning introduced by HBase-Spark module
• [HBASE-14796] - Enhance the Gets in the connector
• [HBASE-14795] - Enhance the spark-hbase scan operations
• [HBASE-14158] - Add documentation for Initial Release for HBase-Spark Module integration
• [HBASE-14515] - Allow spark module unit tests to be skipped with a profile
• [HBASE-14865] - Support passing multiple QOPs to SaslClient/Server via hbase.rpc.protection
• [HBASE-14684] - Try to remove all MiniMapReduceCluster in unit tests
• [HBASE-8329] - Limit compaction speed
• [HBASE-13109] - Make better SEEK vs SKIP decisions during scanning
• [HBASE-13670] - [HBase MOB] ExpiredMobFileCleaner tool deletes mob files later for one more day after they are expired
• [HBASE-10471] - Remove HTD.isAsyncLogFlush() from trunk
• [HBASE-12220] - Add hedgedReads and hedgedReadWins metrics

New Feature

• [HBASE-15780] - Expose AuthUtil as IA.Public
• [HBASE-16981] - Expand Mob Compaction Partition policy from daily to weekly, monthly
• [HBASE-6721] - RegionServer Group based Assignment
• [HBASE-12133] - Add FastLongHistogram for metric computation
• [HBASE-15481] - Add pre/post roll to WALObserver
• [HBASE-15592] - Print Procedure WAL content
• [HBASE-15036] - Update HBase Spark documentation to include bulk load with thin records
• [HBASE-14849] - Add option to set block cache to false on SparkSQL executions
• [HBASE-14340] - Add second bulk load option to Spark Bulk Load to send puts as the value
• [HBASE-14181] - Add Spark DataFrame DataSource to HBase-Spark Module
• [HBASE-14150] - Add BulkLoad functionality to HBase-Spark Module
• [HBASE-13992] - Integrate SparkOnHBase into HBase
• [HBASE-12363] - Improve how KEEP_DELETED_CELLS works with MIN_VERSIONS

Task

• [HBASE-18096] - Limit HFileUtil visibility and add missing annotations
• [HBASE-11393] - Replication TableCfs should be a PB object rather than a string
• [HBASE-16318] - fail build if license isn't in whitelist
• [HBASE-16340] - ensure no Xerces jars included
• [HBASE-16321] - Ensure findbugs jsr305 jar isn't present
• [HBASE-16317] - revert all ESAPI changes
• [HBASE-16056] - Procedure v2 - fix master crash for FileNotFound
• [HBASE-16034] - Fix ProcedureTestingUtility#LoadCounter.setMaxProcId()
• [HBASE-15872] - Split TestWALProcedureStore
• [HBASE-15113] - Procedure v2 - Speedup eviction of sys operation results
• [HBASE-15422] - Procedure v2 - Avoid double yield
• [HBASE-15144] - Procedure v2 - Web UI displaying Store state
• [HBASE-15142] - Procedure v2 - Basic WebUI listing the procedures
• [HBASE-5697] - Audit HBase for usage of deprecated hadoop 0.20.x property names.

Umbrella

• [HBASE-15354] - Use same criteria for clearing meta cache for all operations
• [HBASE-15691] - Port HBASE-10205 (ConcurrentModificationException in BucketAllocator) to branch-1
• [HBASE-15464] - Flush / Compaction metrics revisited
• [HBASE-15377] - Per-RS Get metric is time based, per-region metric is size-based
• [HBASE-15376] - ScanNext metric is size-based while every other per-operation metric is time based
• [HBASE-15435] - Add WAL (in bytes) written metric
• [HBASE-16146] - Counters are expensive...
• [HBASE-15683] - Min latency in latency histograms are emitted as Long.MAX_VALUE
• [HBASE-16023] - Fastpath for the FIFO rpcscheduler
• [HBASE-14447] - Spark tests failing: bind exception when putting up info server
• [HBASE-12015] - Not cleaning Mob data when Mob CF is removed from table
• [HBASE-11339] - HBase MOB
• [HBASE-12080] - Shorten the run time of integration test by default when using mvn failsafe:integration-test
• [HBASE-13932] - Add mob integrity check in HFilePrettyPrinter
• [HBASE-13886] - Return empty value when the mob file is corrupt instead of throwing exceptions
• [HBASE-13855] - Race in multi threaded PartitionedMobCompactor causes NPE
• [HBASE-13806] - Check the mob files when there are mob-enabled columns in HFileCorruptionChecker
• [HBASE-13531] - Flakey failures of TestAcidGuarantees#testMobScanAtomicity
• [HBASE-13313] - Skip the disabled table in mob compaction chore and MasterRpcServices
• [HBASE-13302] - fix new javadoc warns introduced by mob.
• [HBASE-13277] - add mob_threshold option to load test tool
• [HBASE-13151] - IllegalArgumentException in compaction when table has a namespace
• [HBASE-13107] - Refactor MOB Snapshot logic to reduce code duplication.
• [HBASE-13157] - Add mob compaction actions and monkeys to Chaos Monkey
• [HBASE-12332] - [mob] improve how we resolve mobfiles in reads
• [HBASE-13154] - Add support for mob in TestAcidGuarantees and IntegrationTestAcidGuarantees
• [HBASE-13152] - NPE in ExpiredMobFileCleanerChore
• [HBASE-12670] - Add unit tests that exercise the added hfilelink link mob paths
• [HBASE-13012] - Add shell commands to trigger the mob file compactor
• [HBASE-13117] - improve mob sweeper javadoc
• [HBASE-13013] - Add read lock to ExpiredMobFileCleanerChore
• [HBASE-11861] - Native MOB Compaction mechanisms.
• [HBASE-12820] - Use table lock instead of MobZookeeper
• [HBASE-12669] - Have compaction scanner save info about delete markers
• [HBASE-12698] - Add mob cell count to the metadata of each mob file
• [HBASE-12691] - sweep job needs to exit non-zero if job fails for any reason.
• [HBASE-12543] - Incorrect log info in the store compaction of mob
• [HBASE-12331] - Shorten the mob snapshot unit tests
• [HBASE-12758] - treat mob region as any other region when generating rs manifest.
• [HBASE-12646] - SnapshotInfo tool does not find mob data in snapshots
• [HBASE-11645] - Snapshot for MOB
• [HBASE-12487] - Explicitly flush the file name in sweep job
• [HBASE-12591] - Ignore the count of mob compaction metrics when there is issue
• [HBASE-12489] - Incorrect 'mobFileCacheMissCount' calculated in the mob metrics
• [HBASE-12391] - Correct a typo in the mob metrics
• [HBASE-11683] - Metrics for MOB
• [HBASE-12486] - Move the mob table name tag to the 2nd one
• [HBASE-12392] - Incorrect implementation of CompactionRequest.isRetainDeleteMarkers
• [HBASE-12093] - Support the mob attributes in hbase shell when create/alter table
• [HBASE-12085] - mob status should print human readable numbers.
• [HBASE-12066] - Avoid major compaction in TestMobSweeper
• [HBASE-11644] - External MOB compaction tools
• [HBASE-11646] - Handle the MOB in compaction
• [HBASE-12000] - isMob and mobThreshold do not follow column descriptor property naming conventions
• [HBASE-11647] - MOB integration testing
• [HBASE-11901] - Improve the value size of the reference cell in mob column
• [HBASE-11643] - Read and write MOB in HBase
• [HBASE-12046] - HTD/HCD setters should be builder-style