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https://issues.apache.org/jira/browse/HDFS-12638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206786#comment-16206786
 ] 

Hadoop QA commented on HDFS-12638:
----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 11m 
47s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 1 new or modified test 
files. {color} |
|| || || || {color:brown} branch-2.8.2 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  9m 
10s{color} | {color:green} branch-2.8.2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
43s{color} | {color:green} branch-2.8.2 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
23s{color} | {color:green} branch-2.8.2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
52s{color} | {color:green} branch-2.8.2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
57s{color} | {color:green} branch-2.8.2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
59s{color} | {color:green} branch-2.8.2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
49s{color} | {color:green} the patch passed {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} findbugs {color} | {color:green}  2m  
4s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}665m 50s{color} 
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 15m 
10s{color} | {color:red} The patch generated 154 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}714m 10s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDataNodeInitStorage |
|   | hadoop.hdfs.server.blockmanagement.TestNodeCount |
|   | hadoop.hdfs.security.TestDelegationTokenForProxyUser |
|   | hadoop.hdfs.server.datanode.TestDataNodeUUID |
|   | 
hadoop.hdfs.server.datanode.fsdataset.TestAvailableSpaceVolumeChoosingPolicy |
| Timed out junit tests | org.apache.hadoop.hdfs.server.datanode.TestHSync |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistPolicy |
|   | org.apache.hadoop.hdfs.TestModTime |
|   | org.apache.hadoop.hdfs.TestEncryptionZones |
|   | org.apache.hadoop.hdfs.TestLeaseRecovery2 |
|   | org.apache.hadoop.hdfs.TestSmallBlock |
|   | org.apache.hadoop.hdfs.server.namenode.TestAllowFormat |
|   | org.apache.hadoop.hdfs.tools.TestDFSAdminWithHA |
|   | org.apache.hadoop.hdfs.TestDFSStartupVersions |
|   | org.apache.hadoop.hdfs.TestHdfsAdmin |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting 
|
|   | org.apache.hadoop.hdfs.server.datanode.TestDeleteBlockPool |
|   | org.apache.hadoop.hdfs.server.datanode.TestNNHandlesBlockReportPerStorage 
|
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestHeartbeatHandling |
|   | org.apache.hadoop.hdfs.TestFileCreationEmpty |
|   | org.apache.hadoop.hdfs.TestFileCreationClient |
|   | org.apache.hadoop.hdfs.tools.offlineImageViewer.TestOfflineImageViewer |
|   | org.apache.hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
|   | org.apache.hadoop.hdfs.qjournal.client.TestQuorumJournalManager |
|   | org.apache.hadoop.hdfs.TestDatanodeRegistration |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeMetrics |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeHotSwapVolumes |
|   | org.apache.hadoop.hdfs.server.datanode.TestNNHandlesCombinedBlockReport |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManager |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeRollingUpgrade |
|   | 
org.apache.hadoop.hdfs.server.datanode.TestBlockHasMultipleReplicasOnSameDN |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestReplicationPolicy |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeExit |
|   | org.apache.hadoop.hdfs.TestDFSClientFailover |
|   | org.apache.hadoop.hdfs.TestMultiThreadedHflush |
|   | org.apache.hadoop.hdfs.TestSetrepDecreasing |
|   | org.apache.hadoop.hdfs.TestReservedRawPaths |
|   | org.apache.hadoop.hdfs.TestSetrepIncreasing |
|   | org.apache.hadoop.hdfs.server.datanode.TestBlockReplacement |
|   | 
org.apache.hadoop.hdfs.server.blockmanagement.TestReplicationPolicyWithUpgradeDomain
 |
|   | org.apache.hadoop.hdfs.TestAclsEndToEnd |
|   | org.apache.hadoop.hdfs.server.datanode.TestReadOnlySharedStorage |
|   | org.apache.hadoop.hdfs.server.datanode.TestRefreshNamenodes |
|   | org.apache.hadoop.hdfs.TestFileCreation |
|   | org.apache.hadoop.hdfs.TestQuota |
|   | org.apache.hadoop.hdfs.qjournal.server.TestJournalNode |
|   | org.apache.hadoop.hdfs.server.namenode.TestNameNodeAcl |
|   | org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery |
|   | org.apache.hadoop.hdfs.TestReplication |
|   | org.apache.hadoop.hdfs.TestDataTransferKeepalive |
|   | org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyWriter |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeLifeline |
|   | org.apache.hadoop.hdfs.TestDatanodeDeath |
|   | org.apache.hadoop.hdfs.server.datanode.TestTriggerBlockReport |
|   | org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl |
|   | org.apache.hadoop.hdfs.TestFileLengthOnClusterRestart |
|   | org.apache.hadoop.hdfs.TestPread |
|   | org.apache.hadoop.hdfs.TestFileAppend |
|   | org.apache.hadoop.hdfs.server.datanode.TestLargeBlockReport |
|   | org.apache.hadoop.hdfs.TestSafeMode |
|   | org.apache.hadoop.hdfs.TestDFSClientRetries |
|   | org.apache.hadoop.hdfs.TestBlockMissingException |
|   | org.apache.hadoop.hdfs.TestDFSFinalize |
|   | org.apache.hadoop.hdfs.TestDFSStorageStateRecovery |
|   | org.apache.hadoop.hdfs.TestFileAppend4 |
|   | org.apache.hadoop.hdfs.TestFileAppend3 |
|   | org.apache.hadoop.hdfs.server.namenode.TestNameNodeRespectsBindHostKeys |
|   | org.apache.hadoop.hdfs.TestFileAppend2 |
|   | org.apache.hadoop.hdfs.TestRead |
|   | org.apache.hadoop.hdfs.qjournal.client.TestQJMWithFaults |
|   | org.apache.hadoop.hdfs.TestDFSUpgradeFromImage |
|   | org.apache.hadoop.hdfs.TestRollingUpgradeDowngrade |
|   | org.apache.hadoop.hdfs.TestHDFSFileSystemContract |
|   | org.apache.hadoop.hdfs.TestInjectionForSimulatedStorage |
|   | org.apache.hadoop.hdfs.TestDFSPermission |
|   | org.apache.hadoop.hdfs.server.datanode.TestBatchIbr |
|   | org.apache.hadoop.hdfs.TestDecommission |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeTransferSocketSize |
|   | org.apache.hadoop.hdfs.TestReadWhileWriting |
|   | org.apache.hadoop.hdfs.security.TestDelegationToken |
|   | org.apache.hadoop.hdfs.TestFileAppendRestart |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks |
|   | org.apache.hadoop.hdfs.TestFileCorruption |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestOverReplicatedBlocks |
|   | 
org.apache.hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks |
|   | org.apache.hadoop.hdfs.client.impl.TestBlockReaderLocal |
|   | org.apache.hadoop.hdfs.TestCrcCorruption |
|   | org.apache.hadoop.hdfs.TestFileCreationDelete |
|   | org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestWriteToReplica |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestInterDatanodeProtocol 
|
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestBlockStatsMXBean |
|   | org.apache.hadoop.hdfs.protocol.datatransfer.sasl.TestSaslDataTransfer |
|   | org.apache.hadoop.hdfs.TestEncryptionZonesWithKMS |
|   | org.apache.hadoop.hdfs.TestDFSAddressConfig |
|   | org.apache.hadoop.hdfs.web.TestWebHdfsWithRestCsrfPreventionFilter |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestPendingInvalidateBlock |
|   | org.apache.hadoop.hdfs.qjournal.TestSecureNNWithQJM |
|   | org.apache.hadoop.hdfs.TestLeaseRecovery |
|   | org.apache.hadoop.hdfs.TestBlockStoragePolicy |
|   | org.apache.hadoop.hdfs.TestRollingUpgrade |
|   | org.apache.hadoop.hdfs.TestSeekBug |
|   | 
org.apache.hadoop.hdfs.server.namenode.web.resources.TestWebHdfsDataLocality |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestComputeInvalidateWork |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestScrLazyPersistFiles |
|   | org.apache.hadoop.hdfs.server.namenode.TestProcessCorruptBlocks |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistLockedMemory
 |
|   | org.apache.hadoop.hdfs.TestLocalDFS |
|   | org.apache.hadoop.hdfs.TestDFSOutputStream |
|   | org.apache.hadoop.hdfs.TestHDFSServerPorts |
|   | org.apache.hadoop.hdfs.TestLease |
|   | org.apache.hadoop.hdfs.TestDFSInputStream |
|   | org.apache.hadoop.hdfs.TestDFSUpgrade |
|   | org.apache.hadoop.hdfs.server.namenode.TestMetaSave |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistFiles |
|   | org.apache.hadoop.hdfs.qjournal.TestNNWithQJM |
|   | org.apache.hadoop.hdfs.web.TestWebHDFS |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeMXBean |
|   | org.apache.hadoop.hdfs.tools.TestGetGroups |
|   | org.apache.hadoop.hdfs.tools.TestDFSHAAdminMiniCluster |
|   | org.apache.hadoop.hdfs.tools.TestStoragePolicyCommands |
|   | org.apache.hadoop.hdfs.web.TestWebHDFSXAttr |
|   | org.apache.hadoop.hdfs.TestRollingUpgradeRollback |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeMultipleRegistrations |
|   | org.apache.hadoop.hdfs.server.datanode.TestDiskError |
|   | org.apache.hadoop.hdfs.client.impl.TestBlockReaderFactory |
|   | org.apache.hadoop.hdfs.TestRestartDFS |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestSpaceReservation |
|   | 
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureToleration |
|   | 
org.apache.hadoop.hdfs.server.datanode.TestDnRespectsBlockReportSplitThreshold |
|   | org.apache.hadoop.hdfs.server.datanode.TestIncrementalBrVariations |
|   | org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestRBWBlockInvalidation |
|   | 
org.apache.hadoop.hdfs.server.blockmanagement.TestReplicationPolicyWithNodeGroup
 |
|   | org.apache.hadoop.hdfs.TestRenameWhileOpen |
|   | org.apache.hadoop.hdfs.shortcircuit.TestShortCircuitCache |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeMetricsLogger |
|   | org.apache.hadoop.hdfs.server.datanode.TestTransferRbw |
|   | org.apache.hadoop.hdfs.TestFileConcurrentReader |
|   | org.apache.hadoop.hdfs.TestExtendedAcls |
|   | org.apache.hadoop.hdfs.server.datanode.TestDirectoryScanner |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestPendingReplication |
|   | 
org.apache.hadoop.hdfs.server.blockmanagement.TestReplicationPolicyConsiderLoad 
|
|   | org.apache.hadoop.hdfs.TestFSOutputSummer |
|   | org.apache.hadoop.hdfs.shortcircuit.TestShortCircuitLocalRead |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistReplicaPlacement
 |
|   | org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCacheRevocation |
|   | org.apache.hadoop.hdfs.TestTrashWithSecureEncryptionZones |
|   | 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistReplicaRecovery
 |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeReconfiguration |
|   | org.apache.hadoop.hdfs.TestDFSRollback |
|   | org.apache.hadoop.hdfs.TestMiniDFSCluster |
|   | org.apache.hadoop.hdfs.server.datanode.TestBlockScanner |
|   | org.apache.hadoop.hdfs.tools.TestDFSZKFailoverController |
|   | org.apache.hadoop.hdfs.TestDistributedFileSystem |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestSequentialBlockId |
|   | org.apache.hadoop.hdfs.TestHFlush |
|   | org.apache.hadoop.hdfs.web.TestWebHDFSForHA |
|   | org.apache.hadoop.hdfs.TestClientReportBadBlock |
|   | org.apache.hadoop.hdfs.TestDFSClientExcludedNodes |
|   | 
org.apache.hadoop.hdfs.server.blockmanagement.TestNameNodePrunesMissingStorages 
|
|   | org.apache.hadoop.hdfs.TestSetTimes |
|   | org.apache.hadoop.hdfs.TestDFSShell |
|   | org.apache.hadoop.hdfs.server.namenode.TestHostsFiles |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestBlockTokenWithDFS |
|   | org.apache.hadoop.hdfs.server.datanode.TestCachingStrategy |
|   | org.apache.hadoop.hdfs.server.blockmanagement.TestBlockReportRateLimiting 
|
|   | org.apache.hadoop.hdfs.tools.TestDebugAdmin |
|   | org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestDatanodeRestart 
|
|   | org.apache.hadoop.hdfs.TestDFSRename |
|   | org.apache.hadoop.hdfs.tools.TestDFSAdmin |
|   | org.apache.hadoop.hdfs.TestGetBlocks |
|   | org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure |
|   | org.apache.hadoop.hdfs.TestGetFileChecksum |
|   | org.apache.hadoop.hdfs.TestAbandonBlock |
\\
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:d0a0f24 |
| JIRA Issue | HDFS-12638 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12892363/HDFS-12638-branch-2.8.2.001.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 876f1d3b7499 3.13.0-123-generic #172-Ubuntu SMP Mon Jun 26 
18:04:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | branch-2.8.2 / bc74d06 |
| Default Java | 1.7.0_151 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/21711/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/21711/testReport/ |
| asflicense | 
https://builds.apache.org/job/PreCommit-HDFS-Build/21711/artifact/patchprocess/patch-asflicense-problems.txt
 |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: 
hadoop-hdfs-project/hadoop-hdfs |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/21711/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> NameNode exits due to ReplicationMonitor thread received Runtime exception in 
> ReplicationWork#chooseTargets
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-12638
>                 URL: https://issues.apache.org/jira/browse/HDFS-12638
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs
>    Affects Versions: 2.8.2
>            Reporter: Jiandan Yang 
>         Attachments: HDFS-12638-branch-2.8.2.001.patch
>
>
> Active NamNode exit due to NPE, I can confirm that the BlockCollection passed 
> in when creating ReplicationWork is null, but I do not know why 
> BlockCollection is null, By view history I found 
> [HDFS-9754|https://issues.apache.org/jira/browse/HDFS-9754] remove judging  
> whether  BlockCollection is null.
> NN logs are as following:
> {code:java}
> 2017-10-11 16:29:06,161 ERROR [ReplicationMonitor] 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: 
> ReplicationMonitor thread received Runtime exception.
> java.lang.NullPointerException
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.ReplicationWork.chooseTargets(ReplicationWork.java:55)
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWorkForBlocks(BlockManager.java:1532)
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeReplicationWork(BlockManager.java:1491)
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:3792)
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3744)
>         at java.lang.Thread.run(Thread.java:834)
> {code}



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