[ 
https://issues.apache.org/jira/browse/HBASE-15968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16096089#comment-16096089
 ] 

Hadoop QA commented on HBASE-15968:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
18s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 15 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
15s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
13s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
9s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
10s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
39s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 
27s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
55s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
16s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
7s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  
7s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
11s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
40s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} rubocop {color} | {color:red}  0m  
6s{color} | {color:red} The patch generated 6 new + 322 unchanged - 5 fixed = 
328 total (was 327) {color} |
| {color:red}-1{color} | {color:red} ruby-lint {color} | {color:red}  0m  
2s{color} | {color:red} The patch generated 11 new + 715 unchanged - 0 fixed = 
726 total (was 715) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
29m  0s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha4. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
42s{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 67m 24s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  7m 
18s{color} | {color:green} hbase-shell in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  1m 
31s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}128m 56s{color} | 
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Timed out junit tests | 
org.apache.hadoop.hbase.master.procedure.TestDisableTableProcedure |
|   | org.apache.hadoop.hbase.regionserver.wal.TestSecureWALReplay |
|   | org.apache.hadoop.hbase.master.procedure.TestModifyTableProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestCreateTableProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestEnableTableProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestServerCrashProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestDeleteTableProcedure |
|   | org.apache.hadoop.hbase.coprocessor.TestRegionObserverInterface |
|   | org.apache.hadoop.hbase.regionserver.TestRowTooBig |
|   | org.apache.hadoop.hbase.regionserver.TestSplitLogWorker |
|   | org.apache.hadoop.hbase.regionserver.wal.TestAsyncWALReplay |
|   | org.apache.hadoop.hbase.regionserver.compactions.TestFIFOCompactionPolicy 
|
|   | org.apache.hadoop.hbase.mapreduce.TestHRegionPartitioner |
|   | org.apache.hadoop.hbase.master.TestGetLastFlushedSequenceId |
|   | org.apache.hadoop.hbase.client.TestFromClientSide |
|   | org.apache.hadoop.hbase.client.TestMultipleTimestamps |
|   | org.apache.hadoop.hbase.client.TestAsyncReplicationAdminApi |
|   | org.apache.hadoop.hbase.regionserver.TestCompaction |
|   | org.apache.hadoop.hbase.regionserver.wal.TestFSHLog |
|   | org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancer2 |
|   | org.apache.hadoop.hbase.trace.TestHTraceHooks |
|   | org.apache.hadoop.hbase.snapshot.TestSnapshotClientRetries |
|   | org.apache.hadoop.hbase.regionserver.TestRemoveRegionMetrics |
|   | org.apache.hadoop.hbase.master.TestAssignmentManagerMetrics |
|   | org.apache.hadoop.hbase.master.assignment.TestAssignmentManager |
|   | org.apache.hadoop.hbase.TestHBaseTestingUtility |
|   | org.apache.hadoop.hbase.mapred.TestTableInputFormat |
|   | org.apache.hadoop.hbase.client.TestAsyncProcedureAdminApi |
|   | org.apache.hadoop.hbase.client.TestAsyncTableBatch |
|   | org.apache.hadoop.hbase.coprocessor.TestRegionObserverScannerOpenHook |
|   | org.apache.hadoop.hbase.TestFullLogReconstruction |
|   | org.apache.hadoop.hbase.regionserver.TestTimestampFilterSeekHint |
|   | org.apache.hadoop.hbase.regionserver.TestTags |
|   | org.apache.hadoop.hbase.TestMultiVersions |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLablesWithGroups |
|   | org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator |
|   | org.apache.hadoop.hbase.client.TestAsyncSnapshotAdminApi |
|   | org.apache.hadoop.hbase.wal.TestWALFiltering |
|   | org.apache.hadoop.hbase.regionserver.wal.TestWALReplay |
|   | 
org.apache.hadoop.hbase.replication.multiwal.TestReplicationKillMasterRSCompressedWithMultipleAsyncWAL
 |
|   | org.apache.hadoop.hbase.client.TestAsyncClusterAdminApi |
|   | org.apache.hadoop.hbase.filter.TestFilterWrapper |
|   | org.apache.hadoop.hbase.client.TestAsyncRegionAdminApi |
|   | org.apache.hadoop.hbase.client.TestAsyncTableScanRenewLease |
|   | org.apache.hadoop.hbase.master.TestGetInfoPort |
|   | org.apache.hadoop.hbase.client.TestAsyncTableAdminApi |
|   | org.apache.hadoop.hbase.wal.TestWALSplitCompressed |
|   | org.apache.hadoop.hbase.TestZooKeeper |
|   | org.apache.hadoop.hbase.mapreduce.TestRowCounter |
|   | org.apache.hadoop.hbase.master.TestAssignmentListener |
|   | org.apache.hadoop.hbase.master.TestMasterFailoverBalancerPersistence |
|   | org.apache.hadoop.hbase.constraint.TestConstraint |
|   | org.apache.hadoop.hbase.master.cleaner.TestSnapshotFromMaster |
|   | org.apache.hadoop.hbase.client.TestMultiRespectsLimits |
|   | org.apache.hadoop.hbase.mob.compactions.TestPartitionedMobCompactor |
|   | org.apache.hadoop.hbase.master.balancer.TestFavoredStochasticLoadBalancer 
|
|   | org.apache.hadoop.hbase.quotas.TestRegionSizeUse |
|   | org.apache.hadoop.hbase.client.TestServerBusyException |
|   | org.apache.hadoop.hbase.regionserver.TestRegionServerAbort |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithDefaultVisLabelService
 |
|   | org.apache.hadoop.hbase.client.TestMetaWithReplicas |
|   | org.apache.hadoop.hbase.client.TestClientTimeouts |
|   | org.apache.hadoop.hbase.io.asyncfs.TestSaslFanOutOneBlockAsyncDFSOutput |
|   | org.apache.hadoop.hbase.regionserver.TestCompactSplitThread |
|   | org.apache.hadoop.hbase.regionserver.wal.TestLogRollAbort |
|   | 
org.apache.hadoop.hbase.master.normalizer.TestSimpleRegionNormalizerOnCluster |
|   | org.apache.hadoop.hbase.ipc.TestRpcClientLeaks |
|   | org.apache.hadoop.hbase.util.TestHBaseFsckEncryption |
|   | org.apache.hadoop.hbase.master.TestTableStateManager |
|   | org.apache.hadoop.hbase.mapreduce.TestImportTSVWithOperationAttributes |
|   | org.apache.hadoop.hbase.master.cleaner.TestReplicationZKNodeCleaner |
|   | org.apache.hadoop.hbase.master.procedure.TestMasterFailoverWithProcedures 
|
|   | org.apache.hadoop.hbase.master.assignment.TestAssignmentOnRSCrash |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithCustomVisLabService
 |
|   | org.apache.hadoop.hbase.client.TestFromClientSide3 |
|   | org.apache.hadoop.hbase.regionserver.TestWalAndCompactingMemStoreFlush |
|   | org.apache.hadoop.hbase.master.TestSplitLogManager |
|   | org.apache.hadoop.hbase.master.procedure.TestWALProcedureStoreOnHDFS |
|   | org.apache.hadoop.hbase.master.TestMasterRestartAfterDisablingTable |
|   | org.apache.hadoop.hbase.coprocessor.TestIncrementTimeRange |
|   | org.apache.hadoop.hbase.io.asyncfs.TestFanOutOneBlockAsyncDFSOutput |
|   | org.apache.hadoop.hbase.master.balancer.TestFavoredNodeTableImport |
|   | org.apache.hadoop.hbase.TestClusterBootOrder |
|   | org.apache.hadoop.hbase.regionserver.wal.TestAsyncLogRolling |
|   | org.apache.hadoop.hbase.master.TestRollingRestart |
|   | org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancer |
|   | org.apache.hadoop.hbase.client.TestScannerTimeout |
|   | org.apache.hadoop.hbase.regionserver.TestSplitWalDataLoss |
|   | org.apache.hadoop.hbase.regionserver.TestRegionMergeTransactionOnCluster |
|   | org.apache.hadoop.hbase.master.TestDistributedLogSplitting |
|   | org.apache.hadoop.hbase.util.TestCoprocessorScanPolicy |
|   | org.apache.hadoop.hbase.util.TestMiniClusterLoadEncoded |
|   | org.apache.hadoop.hbase.io.encoding.TestDataBlockEncoders |
|   | org.apache.hadoop.hbase.TestJMXConnectorServer |
|   | org.apache.hadoop.hbase.mob.compactions.TestMobCompactor |
|   | org.apache.hadoop.hbase.regionserver.TestHRegionWithInMemoryFlush |
|   | org.apache.hadoop.hbase.client.TestSplitOrMergeStatus |
|   | org.apache.hadoop.hbase.util.TestMiniClusterLoadSequential |
|   | org.apache.hadoop.hbase.regionserver.TestRegionServerReportForDuty |
|   | org.apache.hadoop.hbase.master.TestMasterShutdown |
|   | org.apache.hadoop.hbase.security.TestSecureIPC |
|   | org.apache.hadoop.hbase.TestJMXListener |
|   | org.apache.hadoop.hbase.client.TestPutWithDelete |
|   | org.apache.hadoop.hbase.regionserver.wal.TestLogRolling |
|   | org.apache.hadoop.hbase.client.TestAsyncSingleRequestRpcRetryingCaller |
|   | 
org.apache.hadoop.hbase.coprocessor.TestRegionObserverForAddingMutationsFromCoprocessors
 |
|   | 
org.apache.hadoop.hbase.regionserver.throttle.TestCompactionWithThroughputController
 |
|   | org.apache.hadoop.hbase.client.TestAvoidCellReferencesIntoShippedBlocks |
|   | org.apache.hadoop.hbase.client.TestIncrementFromClientSideWithCoprocessor 
|
|   | org.apache.hadoop.hbase.client.TestAdmin2 |
|   | org.apache.hadoop.hbase.regionserver.TestPerColumnFamilyFlush |
|   | org.apache.hadoop.hbase.regionserver.TestSplitTransactionOnCluster |
|   | org.apache.hadoop.hbase.mapred.TestTableOutputFormatConnectionExhaust |
|   | org.apache.hadoop.hbase.client.TestAdmin1 |
|   | org.apache.hadoop.hbase.io.hfile.TestScannerSelectionUsingTTL |
|   | org.apache.hadoop.hbase.regionserver.TestRegionServerOnlineConfigChange |
|   | org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat2 |
|   | org.apache.hadoop.hbase.util.TestFromClientSide3WoUnsafe |
|   | org.apache.hadoop.hbase.regionserver.TestJoinedScanners |
|   | org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster |
|   | 
org.apache.hadoop.hbase.regionserver.throttle.TestFlushWithThroughputController 
|
|   | org.apache.hadoop.hbase.regionserver.TestDeleteMobTable |
|   | org.apache.hadoop.hbase.regionserver.TestCompactingToCellFlatMapMemStore |
|   | org.apache.hadoop.hbase.master.TestMaster |
|   | 
org.apache.hadoop.hbase.master.procedure.TestDeleteColumnFamilyProcedureFromClient
 |
|   | 
org.apache.hadoop.hbase.master.procedure.TestTableDescriptorModificationFromClient
 |
|   | org.apache.hadoop.hbase.mob.TestExpiredMobFileCleaner |
|   | org.apache.hadoop.hbase.TestAcidGuarantees |
|   | org.apache.hadoop.hbase.security.access.TestAccessControlFilter |
|   | org.apache.hadoop.hbase.filter.TestFuzzyRowAndColumnRangeFilter |
|   | org.apache.hadoop.hbase.TestGlobalMemStoreSize |
|   | org.apache.hadoop.hbase.client.TestSnapshotMetadata |
|   | org.apache.hadoop.hbase.regionserver.TestCompactionWithCoprocessor |
|   | org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithACL |
|   | org.apache.hadoop.hbase.TestNamespace |
|   | org.apache.hadoop.hbase.io.encoding.TestChangingEncoding |
|   | org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor |
|   | org.apache.hadoop.hbase.client.TestCheckAndMutate |
|   | org.apache.hadoop.hbase.io.hfile.TestForceCacheImportantBlocks |
|   | org.apache.hadoop.hbase.regionserver.TestCompoundBloomFilter |
|   | org.apache.hadoop.hbase.regionserver.TestHRegionOnCluster |
|   | 
org.apache.hadoop.hbase.replication.multiwal.TestReplicationSyncUpToolWithMultipleWAL
 |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithDeletes |
|   | 
org.apache.hadoop.hbase.regionserver.TestHRegionServerBulkLoadWithOldClient |
|   | org.apache.hadoop.hbase.mapreduce.TestSyncTable |
|   | org.apache.hadoop.hbase.mapreduce.TestHashTable |
|   | org.apache.hadoop.hbase.mapreduce.TestCopyTable |
|   | org.apache.hadoop.hbase.client.TestReplicaWithCluster |
|   | org.apache.hadoop.hbase.client.TestEnableTable |
|   | org.apache.hadoop.hbase.regionserver.TestRecoveredEdits |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelReplicationWithExpAsString
 |
|   | org.apache.hadoop.hbase.security.access.TestCellACLWithMultipleVersions |
|   | org.apache.hadoop.hbase.TestInfoServers |
|   | org.apache.hadoop.hbase.util.TestRegionSplitter |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsReplication |
|   | org.apache.hadoop.hbase.client.TestClientOperationInterrupt |
|   | org.apache.hadoop.hbase.client.TestHTableMultiplexerFlushCache |
|   | org.apache.hadoop.hbase.filter.TestMultiRowRangeFilter |
|   | org.apache.hadoop.hbase.master.snapshot.TestSnapshotFileCache |
|   | org.apache.hadoop.hbase.security.visibility.TestVisibilityWithCheckAuths |
|   | org.apache.hadoop.hbase.security.access.TestCellACLs |
|   | org.apache.hadoop.hbase.TestHBaseOnOtherDfsCluster |
|   | org.apache.hadoop.hbase.client.TestFastFail |
|   | org.apache.hadoop.hbase.util.TestRegionMover |
|   | org.apache.hadoop.hbase.master.TestRestartCluster |
|   | org.apache.hadoop.hbase.master.procedure.TestProcedureAdmin |
|   | org.apache.hadoop.hbase.quotas.TestQuotaObserverChoreRegionReports |
|   | org.apache.hadoop.hbase.client.TestLeaseRenewal |
|   | org.apache.hadoop.hbase.wal.TestWALOpenAfterDNRollingStart |
|   | org.apache.hadoop.hbase.snapshot.TestMobRestoreFlushSnapshotFromClient |
|   | org.apache.hadoop.hbase.regionserver.TestNewVersionBehaviorFromClientSide 
|
|   | org.apache.hadoop.hbase.replication.TestReplicationTableBase |
|   | org.apache.hadoop.hbase.client.TestTimestampsFilter |
|   | org.apache.hadoop.hbase.util.TestMiniClusterLoadParallel |
|   | org.apache.hadoop.hbase.TestIOFencing |
|   | org.apache.hadoop.hbase.regionserver.TestHRegion |
|   | org.apache.hadoop.hbase.regionserver.TestRSKilledWhenInitializing |
|   | org.apache.hadoop.hbase.master.TestWarmupRegion |
|   | org.apache.hadoop.hbase.client.TestHCM |
|   | org.apache.hadoop.hbase.snapshot.TestRestoreFlushSnapshotFromClient |
|   | org.apache.hadoop.hbase.mapreduce.TestImportExport |
|   | org.apache.hadoop.hbase.security.access.TestWithDisabledAuthorization |
|   | org.apache.hadoop.hbase.TestLocalHBaseCluster |
|   | org.apache.hadoop.hbase.io.hfile.TestCacheOnWrite |
|   | org.apache.hadoop.hbase.io.encoding.TestLoadAndSwitchEncodeOnDisk |
|   | org.apache.hadoop.hbase.regionserver.TestMultiColumnScanner |
|   | org.apache.hadoop.hbase.client.TestRawAsyncTableScan |
|   | 
org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithRemove
 |
|   | org.apache.hadoop.hbase.mob.TestDefaultMobStoreFlusher |
|   | org.apache.hadoop.hbase.snapshot.TestMobFlushSnapshotFromClient |
|   | org.apache.hadoop.hbase.regionserver.TestFSErrorsExposed |
|   | 
org.apache.hadoop.hbase.client.TestRestoreSnapshotFromClientWithRegionReplicas |
|   | org.apache.hadoop.hbase.client.TestMvccConsistentScanner |
|   | org.apache.hadoop.hbase.TestHColumnDescriptorDefaultVersions |
|   | org.apache.hadoop.hbase.regionserver.TestClusterId |
|   | org.apache.hadoop.hbase.regionserver.TestRegionServerHostname |
|   | org.apache.hadoop.hbase.client.TestTableSnapshotScanner |
|   | org.apache.hadoop.hbase.client.TestMobCloneSnapshotFromClient |
|   | org.apache.hadoop.hbase.client.TestSmallReversedScanner |
|   | org.apache.hadoop.hbase.client.TestTableFavoredNodes |
|   | org.apache.hadoop.hbase.fs.TestBlockReorder |
|   | 
org.apache.hadoop.hbase.security.access.TestCoprocessorWhitelistMasterObserver |
|   | 
org.apache.hadoop.hbase.client.TestCloneSnapshotFromClientWithRegionReplicas |
|   | org.apache.hadoop.hbase.client.TestRestoreSnapshotFromClient |
|   | org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient |
|   | org.apache.hadoop.hbase.regionserver.TestSettingTimeoutOnBlockingPoint |
|   | org.apache.hadoop.hbase.TestMetaTableAccessor |
|   | 
org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithAbort
 |
|   | org.apache.hadoop.hbase.regionserver.wal.TestAsyncWALReplayCompressed |
|   | org.apache.hadoop.hbase.regionserver.TestEncryptionKeyRotation |
|   | org.apache.hadoop.hbase.client.TestCloneSnapshotFromClient |
|   | org.apache.hadoop.hbase.util.TestConnectionCache |
|   | 
org.apache.hadoop.hbase.coprocessor.TestMasterCoprocessorExceptionWithRemove |
|   | org.apache.hadoop.hbase.io.hfile.TestHFileBlock |
|   | org.apache.hadoop.hbase.regionserver.TestRegionReplicaFailover |
|   | org.apache.hadoop.hbase.mapreduce.TestImportTSVWithTTLs |
|   | org.apache.hadoop.hbase.client.TestIllegalTableDescriptor |
|   | org.apache.hadoop.hbase.wal.TestBoundedRegionGroupingStrategy |
|   | org.apache.hadoop.hbase.wal.TestWALFactory |
|   | org.apache.hadoop.hbase.regionserver.TestStore |
|   | org.apache.hadoop.hbase.client.TestMobSnapshotFromClient |
|   | org.apache.hadoop.hbase.client.TestHTableMultiplexer |
|   | org.apache.hadoop.hbase.util.TestIdReadWriteLock |
|   | org.apache.hadoop.hbase.master.procedure.TestDeleteColumnFamilyProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestModifyColumnFamilyProcedure |
|   | org.apache.hadoop.hbase.client.TestSnapshotFromClientWithRegionReplicas |
|   | org.apache.hadoop.hbase.regionserver.TestCompactionState |
|   | org.apache.hadoop.hbase.regionserver.TestHRegionServerBulkLoad |
|   | org.apache.hadoop.hbase.regionserver.wal.TestLogRollPeriod |
|   | org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat |
|   | org.apache.hadoop.hbase.client.TestAsyncAdminBuilder |
|   | org.apache.hadoop.hbase.client.TestScannersFromClientSide |
|   | org.apache.hadoop.hbase.regionserver.TestMobStoreCompaction |
|   | org.apache.hadoop.hbase.regionserver.wal.TestWALReplayCompressed |
|   | org.apache.hadoop.hbase.regionserver.wal.TestSecureAsyncWALReplay |
|   | org.apache.hadoop.hbase.replication.TestMasterReplication |
|   | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsOnNewVersionBehaviorTable
 |
|   | org.apache.hadoop.hbase.TestPartialResultsFromClientSide |
|   | org.apache.hadoop.hbase.client.TestSnapshotFromClient |
|   | org.apache.hadoop.hbase.regionserver.TestAtomicOperation |
|   | org.apache.hadoop.hbase.replication.TestReplicationSource |
|   | org.apache.hadoop.hbase.master.TestMasterOperationsForRegionReplicas |
|   | org.apache.hadoop.hbase.master.procedure.TestCreateNamespaceProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestModifyNamespaceProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestAddColumnFamilyProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestDeleteNamespaceProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestRestoreSnapshotProcedure |
|   | org.apache.hadoop.hbase.mapred.TestTableSnapshotInputFormat |
|   | org.apache.hadoop.hbase.tool.TestCanaryTool |
|   | org.apache.hadoop.hbase.master.TestMetaShutdownHandler |
|   | org.apache.hadoop.hbase.util.TestFSUtils |
|   | org.apache.hadoop.hbase.regionserver.TestMajorCompaction |
|   | org.apache.hadoop.hbase.regionserver.TestCompactionInDeadRegionServer |
|   | org.apache.hadoop.hbase.regionserver.TestScannerRetriableFailure |
|   | org.apache.hadoop.hbase.mapreduce.TestLoadIncrementalHFilesSplitRecovery |
|   | org.apache.hadoop.hbase.master.procedure.TestTruncateTableProcedure |
|   | org.apache.hadoop.hbase.master.procedure.TestCloneSnapshotProcedure |
|   | org.apache.hadoop.hbase.client.TestMobSnapshotCloneIndependence |
|   | org.apache.hadoop.hbase.client.TestAsyncClusterAdminApi2 |
|   | org.apache.hadoop.hbase.wal.TestWALSplit |
|   | org.apache.hadoop.hbase.io.encoding.TestEncodedSeekers |
|   | org.apache.hadoop.hbase.mapreduce.TestImportTsv |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:bdc94b1 |
| JIRA Issue | HBASE-15968 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12878316/HBASE-15968.v07.patch 
|
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hbaseanti  checkstyle  compile  rubocop  ruby_lint  |
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| Build tool | maven |
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| git revision | master / af534ac |
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| findbugs | v3.1.0-RC3 |
| rubocop | v0.49.1 |
| rubocop | 
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| ruby-lint | v2.3.1 |
| ruby-lint | 
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| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7746/artifact/patchprocess/patch-unit-hbase-server.txt
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> New behavior of versions considering mvcc and ts rather than ts only
> --------------------------------------------------------------------
>
>                 Key: HBASE-15968
>                 URL: https://issues.apache.org/jira/browse/HBASE-15968
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>             Fix For: 3.0.0
>
>         Attachments: HBASE-15968.v05.patch, HBASE-15968.v06.patch, 
> HBASE-15968.v07.patch, HBASE-15968-v1.patch, HBASE-15968-v2.patch, 
> HBASE-15968-v3.patch, HBASE-15968-v4.patch
>
>
> In HBase book, we have a section in Versions called "Current Limitations" see 
> http://hbase.apache.org/book.html#_current_limitations
> {quote}
> 28.3. Current Limitations
> 28.3.1. Deletes mask Puts
> Deletes mask puts, even puts that happened after the delete was entered. See 
> HBASE-2256. Remember that a delete writes a tombstone, which only disappears 
> after then next major compaction has run. Suppose you do a delete of 
> everything ⇐ T. After this you do a new put with a timestamp ⇐ T. This put, 
> even if it happened after the delete, will be masked by the delete tombstone. 
> Performing the put will not fail, but when you do a get you will notice the 
> put did have no effect. It will start working again after the major 
> compaction has run. These issues should not be a problem if you use 
> always-increasing versions for new puts to a row. But they can occur even if 
> you do not care about time: just do delete and put immediately after each 
> other, and there is some chance they happen within the same millisecond.
> 28.3.2. Major compactions change query results
> …​create three cell versions at t1, t2 and t3, with a maximum-versions 
> setting of 2. So when getting all versions, only the values at t2 and t3 will 
> be returned. But if you delete the version at t2 or t3, the one at t1 will 
> appear again. Obviously, once a major compaction has run, such behavior will 
> not be the case anymore…​ (See Garbage Collection in Bending time in HBase.)
> {quote}
> These limitations result from the current implementation on multi-versions: 
> we only consider timestamp, no matter when it comes; we will not remove old 
> version immediately if there are enough number of new versions. 
> So we can get a stronger semantics of versions by two guarantees:
> 1, Delete will not mask Put that comes after it.
> 2, If a version is masked by enough number of higher versions (VERSIONS in 
> cf's conf), it will never be seen any more.
> Some examples for understanding:
> (delete t<=3 means use Delete.addColumns to delete all versions whose ts is 
> not greater than 3, and delete t3 means use Delete.addColumn to delete the 
> version whose ts=3)
> case 1: put t2 -> put t3 -> delete t<=3 -> put t1, and we will get t1 because 
> the put is after delete.
> case 2: maxversion=2, put t1 -> put t2 -> put t3 -> delete t3, and we will 
> always get t2 no matter if there is a major compaction, because t1 is masked 
> when we put t3 so t1 will never be seen.
> case 3: maxversion=2, put t1 -> put t2 -> put t3 -> delete t2 -> delete t3, 
> and we will get nothing.
> case 4: maxversion=3, put t1 -> put t2 -> put t3 -> delete t2 -> delete t3, 
> and we will get t1 because it is not masked.
> case 5: maxversion=2, put t1 -> put t2 -> put t3 -> delete t3 -> put t1, and 
> we can get t3+t1 because when we put t1 at second time it is the 2nd latest 
> version and it can be read.
> case 6:maxversion=2, put t3->put t2->put t1, and we will get t3+t2 just like 
> what we can get now, ts is still the key of versions.
> Different VERSIONS may result in different results even the size of result is 
> smaller than VERSIONS(see case 3 and 4).  So Get/Scan.setMaxVersions will be 
> handled at end after we read correct data according to CF's  VERSIONS setting.
> The semantics is different from the current HBase, and we may need more logic 
> to support the new semantic, so it is configurable and default is disabled.



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