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https://issues.apache.org/jira/browse/HDFS-10586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15358715#comment-15358715
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gao shan commented on HDFS-10586:
---------------------------------
I check the log, find the following errors. All the datanodes are alive, but
what's the meaning of the WARN "Failed to find datanode " ? 172.16.1.85 is
the namenode, The other IPs are for datanodes.
2016-06-28 10:44:57,995 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:57,996 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:57,996 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_1073744759_7794, replicas=172.16.1.143:9866, 172.16.1.92:9866,
172.16.1.87:9866 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.jar
2016-06-28 10:44:58,233 INFO org.apache.hadoop.hdfs.StateChange: DIR*
completeFile:
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.jar is closed
by DFSClient_NONMAPREDUCE_1881763906_1
2016-06-28 10:44:58,239 INFO
org.apache.hadoop.hdfs.server.namenode.FSDirectory: Increasing replication from
3 to 10 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.jar
2016-06-28 10:44:58,365 INFO
org.apache.hadoop.hdfs.server.namenode.FSDirectory: Increasing replication from
3 to 10 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.split
2016-06-28 10:44:58,368 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:58,368 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:58,369 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_1073744760_7795, replicas=172.16.1.87:9866, 172.16.1.90:9866,
172.16.1.91:9866, 172.16.1.88:9866, 172.16.1.89:9866, 172.16.1.86:9866,
172.16.1.93:9866, 172.16.1.92:9866, 172.16.1.143:9866 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.split
2016-06-28 10:44:58,541 INFO org.apache.hadoop.hdfs.StateChange: DIR*
completeFile:
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.split is
closed by DFSClient_NONMAPREDUCE_1881763906_1
2016-06-28 10:44:58,548 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:58,549 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:58,549 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_1073744761_7796, replicas=172.16.1.93:9866, 172.16.1.88:9866,
172.16.1.143:9866 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.splitmetainfo
2016-06-28 10:44:58,632 INFO org.apache.hadoop.hdfs.StateChange: DIR*
completeFile:
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.splitmetainfo
is closed by DFSClient_NONMAPREDUCE_1881763906_1
2016-06-28 10:44:58,773 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:58,773 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:44:58,774 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_1073744762_7797, replicas=172.16.1.91:9866, 172.16.1.143:9866,
172.16.1.86:9866 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.xml
2016-06-28 10:44:58,857 INFO org.apache.hadoop.hdfs.StateChange: DIR*
completeFile:
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job.xml is closed
by DFSClient_NONMAPREDUCE_1881763906_1
2016-06-28 10:45:06,285 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:45:06,285 WARN org.apache.hadoop.net.NetworkTopology: Failed to
find datanode (scope="" excludedScope="/default-rack").
2016-06-28 10:45:06,285 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_1073744763_7798, replicas=172.16.1.90:9866, 172.16.1.86:9866,
172.16.1.91:9866 for
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job_1467124628054_0001_1_conf.xml
2016-06-28 10:45:06,353 INFO org.apache.hadoop.hdfs.StateChange: DIR*
completeFile:
/tmp/hadoop-yarn/staging/root/.staging/job_1467124628054_0001/job_1467124628054_0001_1_conf.xml
is closed by DFSClient_NONMAPREDUCE_2078921355_1
2016-06-28 10:45:12,227 WARN
org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Failed to
place enough replicas, still in need of 1 to reach 9 (unavailableStorages=[],
storagePolicy=BlockStoragePolicy{HOT:7, storageTypes=[DISK],
creationFallbacks=[], replicationFallbacks=[ARCHIVE]}, newBlock=true) For more
information, please enable DEBUG log level on
org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy
2016-06-28 10:45:12,228 WARN
org.apache.hadoop.hdfs.protocol.BlockStoragePolicy: Failed to place enough
replicas: expected size is 1 but only 0 storage types can be selected
(replication=9, selected=[], unavailable=[DISK], removed=[DISK],
policy=BlockStoragePolicy{HOT:7, storageTypes=[DISK], creationFallbacks=[],
replicationFallbacks=[ARCHIVE]})
2016-06-28 10:45:12,228 WARN
org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Failed to
place enough replicas, still in need of 1 to reach 9
(unavailableStorages=[DISK], storagePolicy=BlockStoragePolicy{HOT:7,
storageTypes=[DISK], creationFallbacks=[], replicationFallbacks=[ARCHIVE]},
newBlock=true) All required storage types are unavailable:
unavailableStorages=[DISK], storagePolicy=BlockStoragePolicy{HOT:7,
storageTypes=[DISK], creationFallbacks=[], replicationFallbacks=[ARCHIVE]}
2016-06-28 10:45:12,228 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_-9223372036854736880_7799, replicas=172.16.1.90:9866,
172.16.1.87:9866, 172.16.1.93:9866, 172.16.1.86:9866, 172.16.1.88:9866,
172.16.1.143:9866, 172.16.1.92:9866, 172.16.1.89:9866 for
/gaos/io_data/test_io_12
2016-06-28 10:45:12,541 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
updatePipeline(blk_-9223372036854736880_7799, newGS=7800, newLength=393216,
newNodes=[172.16.1.90:9866, 172.16.1.87:9866, 172.16.1.93:9866,
172.16.1.86:9866, 172.16.1.88:9866, 172.16.1.143:9866, 172.16.1.92:9866,
172.16.1.89:9866, null:0],
client=DFSClient_attempt_1467124628054_0001_m_000002_0_1932721620_1)
2016-06-28 10:45:12,542 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
updatePipeline(blk_-9223372036854736880_7799 => blk_-9223372036854736880_7800)
success
2016-06-28 10:45:14,660 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_-9223372036854736864_7801, replicas=172.16.1.92:9866,
172.16.1.93:9866, 172.16.1.86:9866, 172.16.1.143:9866, 172.16.1.91:9866,
172.16.1.87:9866, 172.16.1.89:9866, 172.16.1.90:9866, 172.16.1.88:9866 for
/gaos/io_data/test_io_4
2016-06-28 10:45:14,722 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_-9223372036854736848_7802, replicas=172.16.1.91:9866,
172.16.1.87:9866, 172.16.1.90:9866, 172.16.1.86:9866, 172.16.1.88:9866,
172.16.1.93:9866, 172.16.1.92:9866, 172.16.1.143:9866, 172.16.1.89:9866 for
/gaos/io_data/test_io_8
2016-06-28 10:45:14,749 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
allocate blk_-9223372036854736832_7803, replicas=172.16.1.86:9866,
172.16.1.93:9866, 172.16.1.89:9866, 172.16.1.92:9866, 172.16.1.143:9866,
172.16.1.90:9866, 172.16.1.87:9866, 172.16.1.91:9866, 172.16.1.88:9866 for
/gaos/io_data/test_io_18
............................
Also on the datanodes, ( e.g. 172.16.1.143), there are some errors:,
java.io.IOException: Premature EOF from inputStream
at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:204)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:211)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:522)
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:923)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:846)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:171)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:105)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:289)
at java.lang.Thread.run(Thread.java:745)
2016-06-28 10:56:44,830 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
PacketResponder:
BP-257845079-172.16.1.85-1466418599731:blk_-9223372036854736496_7847,
type=LAST_IN_PIPELINE: Thread is interrupted.
2016-06-28 10:56:44,830 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
PacketResponder:
BP-257845079-172.16.1.85-1466418599731:blk_-9223372036854736496_7847,
type=LAST_IN_PIPELINE terminating
2016-06-28 10:56:44,830 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
opWriteBlock
BP-257845079-172.16.1.85-1466418599731:blk_-9223372036854736496_7847 received
exception java.io.IOException: Premature EOF from inputStream
2016-06-28 10:56:44,830 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode:
host-172-16-1-143:9866:DataXceiver error processing WRITE_BLOCK operation src:
/172.16.1.85:8185 dst: /172.16.1.143:9866
java.io.IOException: Premature EOF from inputStream
at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:204)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:211)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
at
org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:522)
.................................
> Erasure Code misfunctions when 3 DataNode down
> ----------------------------------------------
>
> Key: HDFS-10586
> URL: https://issues.apache.org/jira/browse/HDFS-10586
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha1
> Environment: 9 DataNode and 1 NameNode, Erasured code policy is
> set as "6--3", When 3 DataNode down, erasured code fails and an exception
> is thrown
> Reporter: gao shan
>
> The following is the steps to reproduce:
> 1) hadoop fs -mkdir /ec
> 2) set erasured code policy as "6-3"
> 3) "write" data by :
> time hadoop jar
> /opt/hadoop/hadoop-3.0.0-SNAPSHOT/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.0.0-SNAPSHOT.jar
> TestDFSIO -D test.build.data=/ec -write -nrFiles 30 -fileSize 12288
> -bufferSize 1073741824
> 4) Manually down 3 nodes. Kill the threads of "datanode" and "nodemanager"
> in 3 DataNode.
> 5) By using erasured code to "read" data by:
> time hadoop jar
> /opt/hadoop/hadoop-3.0.0-SNAPSHOT/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.0.0-SNAPSHOT.jar
> TestDFSIO -D test.build.data=/ec -read -nrFiles 30 -fileSize 12288
> -bufferSize 1073741824
> then the failure occurs and the exception is thrown as:
> INFO mapreduce.Job: Task Id : attempt_1465445965249_0008_m_000034_2, Status :
> FAILED
> Error: java.io.IOException: 4 missing blocks, the stripe is: Offset=0,
> length=8388608, fetchedChunksNum=0, missingChunksNum=4
> at
> org.apache.hadoop.hdfs.DFSStripedInputStream$StripeReader.checkMissingBlocks(DFSStripedInputStream.java:614)
> at
> org.apache.hadoop.hdfs.DFSStripedInputStream$StripeReader.readParityChunks(DFSStripedInputStream.java:647)
> at
> org.apache.hadoop.hdfs.DFSStripedInputStream$StripeReader.readStripe(DFSStripedInputStream.java:762)
> at
> org.apache.hadoop.hdfs.DFSStripedInputStream.readOneStripe(DFSStripedInputStream.java:316)
> at
> org.apache.hadoop.hdfs.DFSStripedInputStream.readWithStrategy(DFSStripedInputStream.java:450)
> at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:941)
> at java.io.DataInputStream.read(DataInputStream.java:149)
> at org.apache.hadoop.fs.TestDFSIO$ReadMapper.doIO(TestDFSIO.java:531)
> at org.apache.hadoop.fs.TestDFSIO$ReadMapper.doIO(TestDFSIO.java:508)
> at org.apache.hadoop.fs.IOMapperBase.map(IOMapperBase.java:134)
> at org.apache.hadoop.fs.IOMapperBase.map(IOMapperBase.java:37)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)
> 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:1669)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)
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