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https://issues.apache.org/jira/browse/HDFS-6532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15547303#comment-15547303
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Yiqun Lin commented on HDFS-6532:
---------------------------------
Thanks [~xiaochen] for continous work on this. Some comments from me:
1.{quote}
maybe we should just add the test timeout
{quote}
I am +0 for increasing the timeout since that I think this seems not the best
way.
2.As the comments said, the socket timeout happens when the test runs failed.
Here the socket timeout is normal? Or there is some other exception to trigger
this?
> Intermittent test failure
> org.apache.hadoop.hdfs.TestCrcCorruption.testCorruptionDuringWrt
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-6532
> URL: https://issues.apache.org/jira/browse/HDFS-6532
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode, hdfs-client
> Affects Versions: 2.4.0
> Reporter: Yongjun Zhang
> Assignee: Yiqun Lin
> Attachments: HDFS-6532.001.patch, HDFS-6532.002.patch,
> PreCommit-HDFS-Build #16770 test - testCorruptionDuringWrt [Jenkins].pdf,
> TEST-org.apache.hadoop.hdfs.TestCrcCorruption-select_timeout.xml,
> TEST-org.apache.hadoop.hdfs.TestCrcCorruption.xml
>
>
> Per https://builds.apache.org/job/Hadoop-Hdfs-trunk/1774/testReport, we had
> the following failure. Local rerun is successful
> {code}
> Regression
> org.apache.hadoop.hdfs.TestCrcCorruption.testCorruptionDuringWrt
> Failing for the past 1 build (Since Failed#1774 )
> Took 50 sec.
> Error Message
> test timed out after 50000 milliseconds
> Stacktrace
> java.lang.Exception: test timed out after 50000 milliseconds
> at java.lang.Object.wait(Native Method)
> at
> org.apache.hadoop.hdfs.DFSOutputStream.waitForAckedSeqno(DFSOutputStream.java:2024)
> at
> org.apache.hadoop.hdfs.DFSOutputStream.flushInternal(DFSOutputStream.java:2008)
> at
> org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:2107)
> at
> org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:70)
> at
> org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:98)
> at
> org.apache.hadoop.hdfs.TestCrcCorruption.testCorruptionDuringWrt(TestCrcCorruption.java:133)
> {code}
> See relevant exceptions in log
> {code}
> 2014-06-14 11:56:15,283 WARN datanode.DataNode
> (BlockReceiver.java:verifyChunks(404)) - Checksum error in block
> BP-1675558312-67.195.138.30-1402746971712:blk_1073741825_1001 from
> /127.0.0.1:41708
> org.apache.hadoop.fs.ChecksumException: Checksum error:
> DFSClient_NONMAPREDUCE_-1139495951_8 at 64512 exp: 1379611785 got: -12163112
> at
> org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:353)
> at
> org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:284)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.verifyChunks(BlockReceiver.java:402)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:537)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:734)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:741)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:124)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:71)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:234)
> at java.lang.Thread.run(Thread.java:662)
> 2014-06-14 11:56:15,285 WARN datanode.DataNode
> (BlockReceiver.java:run(1207)) - IOException in BlockReceiver.run():
> java.io.IOException: Shutting down writer and responder due to a checksum
> error in received data. The error response has been sent upstream.
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver$PacketResponder.sendAckUpstreamUnprotected(BlockReceiver.java:1352)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver$PacketResponder.sendAckUpstream(BlockReceiver.java:1278)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver$PacketResponder.run(BlockReceiver.java:1199)
> at java.lang.Thread.run(Thread.java:662)
> ...
> {code}
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