[
https://issues.apache.org/jira/browse/HDFS-16664?focusedWorklogId=791738&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-791738
]
ASF GitHub Bot logged work on HDFS-16664:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Jul/22 11:42
Start Date: 17/Jul/22 11:42
Worklog Time Spent: 10m
Work Description: KevinWikant commented on PR #4568:
URL: https://github.com/apache/hadoop/pull/4568#issuecomment-1186492545
```
[ERROR] Tests run: 6803, Failures: 0, Errors: 2, Skipped: 24, Flakes: 8
[INFO]
[ERROR] There are test failures
```
```
[ERROR] Errors:
[ERROR]
org.apache.hadoop.hdfs.server.namenode.TestFsck.testFsckCorruptWhenOneReplicaIsCorrupt(org.apache.hadoop.hdfs.server.namenode.TestFsck)
[ERROR] Run 1: TestFsck.testFsckCorruptWhenOneReplicaIsCorrupt » Remote
java.lang.NullPointer...
[ERROR] Run 2: TestFsck.testFsckCorruptWhenOneReplicaIsCorrupt » Remote
java.lang.NullPointer...
[ERROR] Run 3: TestFsck.testFsckCorruptWhenOneReplicaIsCorrupt » Remote
java.lang.NullPointer...
[INFO]
[ERROR]
org.apache.hadoop.hdfs.server.namenode.ha.TestObserverNode.testMkdirsRaceWithObserverRead(org.apache.hadoop.hdfs.server.namenode.ha.TestObserverNode)
[ERROR] Run 1: TestObserverNode.testMkdirsRaceWithObserverRead:557 Client
#3 lastSeenStateId=-9223372036854775808 activStateId=37
null
[ERROR] Run 2: TestObserverNode.testMkdirsRaceWithObserverRead:511 »
Connect Call From 653bab...
[ERROR] Run 3: TestObserverNode.cleanUp:111 » Connect Call >From
653bab42d979/172.17.0.2 to lo...
[ERROR] Run 4: TestObserverNode.testMkdirsRaceWithObserverRead:511 »
Connect Call From 653bab...
[ERROR] Run 5: TestObserverNode.cleanUp:111 » Connect Call >From
653bab42d979/172.17.0.2 to lo...
```
- TestObserverNode#testMkdirsRaceWithObserverRead is a flaky test:
https://issues.apache.org/jira/browse/HDFS-15646
The other test failure is relevant
TestFsck#testFsckCorruptWhenOneReplicaIsCorrupt:
```
[ERROR] Tests run: 35, Failures: 0, Errors: 3, Skipped: 0, Time elapsed:
281.876 s <<< FAILURE! - in org.apache.hadoop.hdfs.server.namenode.TestFsck
[ERROR]
testFsckCorruptWhenOneReplicaIsCorrupt(org.apache.hadoop.hdfs.server.namenode.TestFsck)
Time elapsed: 7.446 s <<< ERROR!
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.blockmanagement.CorruptReplicasMap.removeFromCorruptReplicasMap(CorruptReplicasMap.java:145)
at
org.apache.hadoop.hdfs.server.blockmanagement.CorruptReplicasMap.removeFromCorruptReplicasMap(CorruptReplicasMap.java:134)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.removeStoredBlock(BlockManager.java:4255)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.removeStaleReplicas(BlockManager.java:4262)
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.updateLastBlock(BlockManager.java:4772)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.updatePipelineInternal(FSNamesystem.java:6004)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.updatePipeline(FSNamesystem.java:5966)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.updatePipeline(NameNodeRpcServer.java:1009)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.updatePipeline(ClientNamenodeProtocolServerSideTranslatorPB.java:1195)
at
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at
org.apache.hadoop.ipc.ProtobufRpcEngine2$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine2.java:620)
at
org.apache.hadoop.ipc.ProtobufRpcEngine2$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine2.java:588)
at
org.apache.hadoop.ipc.ProtobufRpcEngine2$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine2.java:572)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1192)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:1193)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:1116)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1919)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:3131)
```
Issue Time Tracking
-------------------
Worklog Id: (was: 791738)
Time Spent: 0.5h (was: 20m)
> Use correct GenerationStamp when invalidating corrupt block replicas
> --------------------------------------------------------------------
>
> Key: HDFS-16664
> URL: https://issues.apache.org/jira/browse/HDFS-16664
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kevin Wikant
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> While trying to backport HDFS-16064 to an older Hadoop version, the new unit
> test "testDeleteCorruptReplicaForUnderReplicatedBlock" started failing
> unexpectedly.
> Upon deep diving this unit test failure, I identified a bug in HDFS corrupt
> replica invalidation which results in the following datanode exception:
> {quote}2022-07-16 08:07:52,041 [BP-958471676-X-1657973243350 heartbeating to
> localhost/127.0.0.1:61365] WARN datanode.DataNode
> (BPServiceActor.java:processCommand(887)) - Error processing datanode Command
> java.io.IOException: Failed to delete 1 (out of 1) replica(s):
> 0) Failed to delete replica blk_1073741825_1005: GenerationStamp not matched,
> existing replica is blk_1073741825_1001
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.invalidate(FsDatasetImpl.java:2139)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.invalidate(FsDatasetImpl.java:2034)
> at
> org.apache.hadoop.hdfs.server.datanode.BPOfferService.processCommandFromActive(BPOfferService.java:735)
> at
> org.apache.hadoop.hdfs.server.datanode.BPOfferService.processCommandFromActor(BPOfferService.java:680)
> at
> org.apache.hadoop.hdfs.server.datanode.BPServiceActor.processCommand(BPServiceActor.java:883)
> at
> org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:678)
> at
> org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:849)
> at java.lang.Thread.run(Thread.java:750)
> {quote}
> The issue is that the Namenode is sending wrong generationStamp to the
> datanode. By adding some additional logs, I was able to determine the root
> cause for this:
> * the generationStamp sent in the DNA_INVALIDATE is based on the
> [generationStamp of the block sent in the block
> report|https://github.com/apache/hadoop/blob/8774f178686487007dcf8c418c989b785a529000/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java#L3733]
> * the problem is that the datanode with the corrupt block replica (that
> receives the DNA_INVALIDATE) is not necissarily the same datanode that sent
> the block report
> * this can cause the above exception when the corrupt block replica on the
> datanode receiving the DNA_INVALIDATE & the block replica on the datanode
> that sent the block report have different generationStamps
> The solution is to store the corrupt replicas generationStamp in the
> CorruptReplicasMap, then to extract this correct generationStamp value when
> sending the DNA_INVALIDATE to the datanode
>
> h2. Failed Test - Before the fix
> {quote}> mvn test
> -Dtest=TestDecommission#testDeleteCorruptReplicaForUnderReplicatedBlock
>
> [INFO] Results:
> [INFO]
> [ERROR] Failures:
> [ERROR]
> TestDecommission.testDeleteCorruptReplicaForUnderReplicatedBlock:2035 Node
> 127.0.0.1:61366 failed to complete decommissioning. numTrackedNodes=1 ,
> numPendingNodes=0 , adminState=Decommission In Progress ,
> nodesWithReplica=[127.0.0.1:61366, 127.0.0.1:61419]
> {quote}
> Logs:
> {quote}> cat
> target/surefire-reports/org.apache.hadoop.hdfs.TestDecommission-output.txt |
> grep 'Expected Replicas:|XXX|FINALIZED|Block now|Failed to delete'
> 2022-07-16 08:07:45,891 [Listener at localhost/61378] INFO
> hdfs.TestDecommission
> (TestDecommission.java:testDeleteCorruptReplicaForUnderReplicatedBlock(1942))
> - Block now has 2 corrupt replicas on [127.0.0.1:61370 , 127.0.0.1:61375] and
> 1 live replica on 127.0.0.1:61366
> 2022-07-16 08:07:45,913 [Listener at localhost/61378] INFO
> hdfs.TestDecommission
> (TestDecommission.java:testDeleteCorruptReplicaForUnderReplicatedBlock(1974))
> - Block now has 2 corrupt replicas on [127.0.0.1:61370 , 127.0.0.1:61375] and
> 1 decommissioning replica on 127.0.0.1:61366
> XXX invalidateBlock dn=127.0.0.1:61415 , blk=1073741825_1001
> XXX postponeBlock dn=127.0.0.1:61415 , blk=1073741825_1001
> XXX invalidateBlock dn=127.0.0.1:61419 , blk=1073741825_1003
> XXX addToInvalidates dn=127.0.0.1:61419 , blk=1073741825_1003
> XXX addBlocksToBeInvalidated dn=127.0.0.1:61419 , blk=1073741825_1003
> XXX rescanPostponedMisreplicatedBlocks blk=1073741825_1005
> XXX DNA_INVALIDATE dn=/127.0.0.1:61419 , blk=1073741825_1003
> XXX invalidate(on DN) dn=/127.0.0.1:61419 , invalidBlk=blk_1073741825_1003 ,
> blkByIdAndGenStamp = FinalizedReplica, blk_1073741825_1003, FINALIZED
> 2022-07-16 08:07:49,084 [BP-958471676-X-1657973243350 heartbeating to
> localhost/127.0.0.1:61365] INFO impl.FsDatasetAsyncDiskService
> (FsDatasetAsyncDiskService.java:deleteAsync(226)) - Scheduling
> blk_1073741825_1003 replica FinalizedReplica, blk_1073741825_1003, FINALIZED
> XXX addBlock dn=127.0.0.1:61419 , blk=1073741825_1005 *<<< block report is
> coming from 127.0.0.1:61419 which has genStamp=1005*
> XXX invalidateCorruptReplicas dn=127.0.0.1:61415 ,
> reported_blk=1073741825_1005 *<<< corrupt replica is on 127.0.0.1:61415
> which is expecting genStamp=1001*
> XXX addToInvalidates dn=127.0.0.1:61415 , blk=1073741825_1005
> 2022-07-16 08:07:49,431 [DatanodeAdminMonitor-0] INFO BlockStateChange
> (DatanodeAdminManager.java:logBlockReplicationInfo(417)) - Block:
> blk_1073741825_1005, Expected Replicas: 2, live replicas: 1, corrupt
> replicas: 0, decommissioned replicas: 0, decommissioning replicas: 1,
> maintenance replicas: 0, live entering maintenance replicas: 0, excess
> replicas: 0, Is Open File: false, Datanodes having this block:
> 127.0.0.1:61366 127.0.0.1:61419 , Current Datanode: 127.0.0.1:61366, Is
> current datanode decommissioning: true, Is current datanode entering
> maintenance: false
> XXX addBlocksToBeInvalidated dn=127.0.0.1:61415 , blk=1073741825_1005 *<<<
> Namenode sends wrong genStamp to 127.0.0.1:61415*
> XXX DNA_INVALIDATE dn=/127.0.0.1:61415 , blk=1073741825_1005
> XXX invalidate(on DN) dn=/127.0.0.1:61415 , invalidBlk=blk_1073741825_1005 ,
> blkByIdAndGenStamp = null
> XXX invalidate(on DN) dn=/127.0.0.1:61415 , invalidBlk=blk_1073741825_1005 ,
> blkById = FinalizedReplica, blk_1073741825_1001, FINALIZED
> 2022-07-16 08:07:52,041 [BP-958471676-X-1657973243350 heartbeating to
> localhost/127.0.0.1:61365] WARN datanode.DataNode
> (BPServiceActor.java:processCommand(887)) - Error processing datanode Command
> java.io.IOException: Failed to delete 1 (out of 1) replica(s):
> 0) Failed to delete replica blk_1073741825_1005: GenerationStamp not matched,
> existing replica is blk_1073741825_1001
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.invalidate(FsDatasetImpl.java:2139)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.invalidate(FsDatasetImpl.java:2034)
> at
> org.apache.hadoop.hdfs.server.datanode.BPOfferService.processCommandFromActive(BPOfferService.java:735)
> at
> org.apache.hadoop.hdfs.server.datanode.BPOfferService.processCommandFromActor(BPOfferService.java:680)
> at
> org.apache.hadoop.hdfs.server.datanode.BPServiceActor.processCommand(BPServiceActor.java:883)
> at
> org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:678)
> at
> org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:849)
> at java.lang.Thread.run(Thread.java:750)
> 2022-07-16 08:07:52,384 [DataXceiver for client at /127.0.0.1:61434
> [Receiving block BP-958471676-X-1657973243350:blk_1073741825_1005]] INFO
> datanode.DataNode (DataXceiver.java:writeBlock(939)) - opWriteBlock
> BP-958471676-X-1657973243350:blk_1073741825_1005 received exception
> org.apache.hadoop.hdfs.server.datanode.ReplicaAlreadyExistsException: Block
> BP-958471676-X-1657973243350:blk_1073741825_1005 already exists in state
> FINALIZED and thus cannot be created.
> 2022-07-16 08:07:52,385 [DataXceiver for client at /127.0.0.1:61434
> [Receiving block BP-958471676-X-1657973243350:blk_1073741825_1005]] INFO
> datanode.DataNode (DataXceiver.java:run(307)) - 127.0.0.1:61415:DataXceiver
> error processing WRITE_BLOCK operation src: /127.0.0.1:61434 dst:
> /127.0.0.1:61415;
> org.apache.hadoop.hdfs.server.datanode.ReplicaAlreadyExistsException: Block
> BP-958471676-X-1657973243350:blk_1073741825_1005 already exists in state
> FINALIZED and thus cannot be created.
> 2022-07-16 08:07:54,422 [DatanodeAdminMonitor-0] INFO BlockStateChange
> (DatanodeAdminManager.java:logBlockReplicationInfo(417)) - Block:
> blk_1073741825_1005, Expected Replicas: 2, live replicas: 1, corrupt
> replicas: 0, decommissioned replicas: 0, decommissioning replicas: 1,
> maintenance replicas: 0, live entering maintenance replicas: 0, excess
> replicas: 0, Is Open File: false, Datanodes having this block:
> 127.0.0.1:61366 127.0.0.1:61419 , Current Datanode: 127.0.0.1:61366, Is
> current datanode decommissioning: true, Is current datanode entering
> maintenance: false
> ...
> 2022-07-16 08:08:24,426 [DatanodeAdminMonitor-0] INFO BlockStateChange
> (DatanodeAdminManager.java:logBlockReplicationInfo(417)) - Block:
> blk_1073741825_1005, Expected Replicas: 2, live replicas: 1, corrupt
> replicas: 0, decommissioned replicas: 0, decommissioning replicas: 1,
> maintenance replicas: 0, live entering maintenance replicas: 0, excess
> replicas: 0, Is Open File: false, Datanodes having this block:
> 127.0.0.1:61366 127.0.0.1:61419 , Current Datanode: 127.0.0.1:61366, Is
> current datanode decommissioning: true, Is current datanode entering
> maintenance: false
> {quote}
> Note the inline comments above which illustrate the bug
> h2. Successful Test - After the fix
> {quote}> mvn test
> -Dtest=TestDecommission#testDeleteCorruptReplicaForUnderReplicatedBlock
> [INFO] Results:
> [INFO]
> [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
> {quote}
> Logs:
> {quote}> cat
> target/surefire-reports/org.apache.hadoop.hdfs.TestDecommission-output.txt |
> grep 'Expected Replicas:|XXX|FINALIZED|Block now|Failed to delete'
> 2022-07-16 07:54:30,648 [Listener at localhost/60376] INFO
> hdfs.TestDecommission
> (TestDecommission.java:testDeleteCorruptReplicaForUnderReplicatedBlock(1942))
> - Block now has 2 corrupt replicas on [127.0.0.1:60364 , 127.0.0.1:60368] and
> 1 live replica on 127.0.0.1:60373
> 2022-07-16 07:54:30,669 [Listener at localhost/60376] INFO
> hdfs.TestDecommission
> (TestDecommission.java:testDeleteCorruptReplicaForUnderReplicatedBlock(1974))
> - Block now has 2 corrupt replicas on [127.0.0.1:60364 , 127.0.0.1:60368] and
> 1 decommissioning replica on 127.0.0.1:60373
> XXX invalidateBlock dn=127.0.0.1:60423 , blk=1073741825_1001
> XXX postponeBlock dn=127.0.0.1:60423 , blk=1073741825_1001
> XXX invalidateBlock dn=127.0.0.1:60427 , blk=1073741825_1003
> XXX addToInvalidates dn=127.0.0.1:60427 , blk=1073741825_1003
> XXX addBlocksToBeInvalidated dn=127.0.0.1:60427 , blk=1073741825_1003
> XXX rescanPostponedMisreplicatedBlocks blk=1073741825_1005
> XXX DNA_INVALIDATE dn=/127.0.0.1:60427 , blk=1073741825_1003
> XXX invalidate(on DN) dn=/127.0.0.1:60427 , invalidBlk=blk_1073741825_1003 ,
> blkByIdAndGenStamp = FinalizedReplica, blk_1073741825_1003, FINALIZED
> 2022-07-16 07:54:32,831 [BP-1469857843-X-1657972447604 heartbeating to
> localhost/127.0.0.1:60363] INFO impl.FsDatasetAsyncDiskService
> (FsDatasetAsyncDiskService.java:deleteAsync(226)) - Scheduling
> blk_1073741825_1003 replica FinalizedReplica, blk_1073741825_1003, FINALIZED
> 2022-07-16 07:54:33,772 [DatanodeAdminMonitor-0] INFO BlockStateChange
> (DatanodeAdminManager.java:logBlockReplicationInfo(417)) - Block:
> blk_1073741825_1005, Expected Replicas: 2, live replicas: 0, corrupt
> replicas: 1, decommissioned replicas: 0, decommissioning replicas: 1,
> maintenance replicas: 0, live entering maintenance replicas: 0, excess
> replicas: 0, Is Open File: false, Datanodes having this block:
> 127.0.0.1:60373 127.0.0.1:60423 , Current Datanode: 127.0.0.1:60373, Is
> current datanode decommissioning: true, Is current datanode entering
> maintenance: false
> XXX addBlock dn=127.0.0.1:60427 , blk=1073741825_1005
> XXX invalidateCorruptReplicas dn=127.0.0.1:60423 ,
> reported_blk=1073741825_1005
> XXX getCorruptReplicaGenerationStamp dn=127.0.0.1:60423 , genStamp=1001
> XXX addToInvalidates dn=127.0.0.1:60423 , blk=1073741825_1001
> XXX addBlocksToBeInvalidated dn=127.0.0.1:60423 , blk=1073741825_1001
> XXX DNA_INVALIDATE dn=/127.0.0.1:60423 , blk=1073741825_1001
> XXX invalidate(on DN) dn=/127.0.0.1:60423 , invalidBlk=blk_1073741825_1001 ,
> blkByIdAndGenStamp = FinalizedReplica, blk_1073741825_1001, FINALIZED
> 2022-07-16 07:54:35,796 [BP-1469857843-X-1657972447604 heartbeating to
> localhost/127.0.0.1:60363] INFO impl.FsDatasetAsyncDiskService
> (FsDatasetAsyncDiskService.java:deleteAsync(226)) - Scheduling
> blk_1073741825_1001 replica FinalizedReplica, blk_1073741825_1001, FINALIZED
> XXX addBlock dn=127.0.0.1:60423 , blk=1073741825_1005
> 2022-07-16 07:54:40,768 [Listener at localhost/60430] INFO
> hdfs.TestDecommission
> (TestDecommission.java:testDeleteCorruptReplicaForUnderReplicatedBlock(2050))
> - Block now has 2 live replicas on [127.0.0.1:60423 , 127.0.0.1:60427] and 1
> decommissioned replica on 127.0.0.1:60373
> {quote}
> Using "getCorruptReplicaGenerationStamp" allows the Namenode to get the
> correct generationStamp for the corrupt block replica
>
> h2. Why does unit test failure not reproduce in Hadoop trunk?
> In trunk the block invalidation does not get [postponed
> here|https://github.com/apache/hadoop/blob/8774f178686487007dcf8c418c989b785a529000/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java#L1986]
> Instead, both corrupt replicas are invalidated immediately during the first
> block report:
> {quote}> cat
> target/surefire-reports/org.apache.hadoop.hdfs.TestDecommission-output.txt |
> grep XXX
> XXX addToInvalidates dn=127.0.0.1:57051 , blk=1073741825_1001
> XXX addToInvalidates dn=127.0.0.1:57055 , blk=1073741825_1003
> {quote}
> The reason for this difference in behavior is not clear at this point
> h2. Additional Info
> * stack trace for when corrupt replica gets immediately invalidated on
> datanode restart (i.e. first block report)
>
> {quote}java.lang.Thread.getStackTrace(Thread.java:1564)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.addToInvalidates(BlockManager.java:1670)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.invalidateBlock(BlockManager.java:1850)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.markBlockAsCorrupt(BlockManager.java:1816)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processFirstBlockReport(BlockManager.java:2929)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processReport(BlockManager.java:2665)
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.lambda$blockReport$0(NameNodeRpcServer.java:1588)
> java.util.concurrent.FutureTask.run(FutureTask.java:266)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$BlockReportProcessingThread.processQueue(BlockManager.java:5066)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$BlockReportProcessingThread.run(BlockManager.java:5045)
> {quote}
>
> * stack trace for after corrupt replica is removed from datanode & datanode
> notifies namenode (i.e. incremental block report)
> ** this is where the issue begins because the DN which sends the IBR is not
> the same as the DN with the remaining corrupt replica
> {quote}java.lang.Thread.getStackTrace(Thread.java:1564)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.addToInvalidates(BlockManager.java:1670)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.invalidateBlock(BlockManager.java:1850)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.invalidateCorruptReplicas(BlockManager.java:3477)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.addStoredBlock(BlockManager.java:3436)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processAndHandleReportedBlock(BlockManager.java:4094)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.addBlock(BlockManager.java:4023)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processIncrementalBlockReport(BlockManager.java:4151)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processIncrementalBlockReport(BlockManager.java:4118)
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.processIncrementalBlockReport(FSNamesystem.java:4800)
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer$1.run(NameNodeRpcServer.java:1643)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$BlockReportProcessingThread.processQueue(BlockManager.java:5066)
> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$BlockReportProcessingThread.run(BlockManager.java:5045)
> {quote}
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