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https://issues.apache.org/jira/browse/HDFS-12293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16133698#comment-16133698
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Ajay Kumar commented on HDFS-12293:
-----------------------------------
[~jojochuang] could you please check the updated patch?
> DataNode should log file name on disk error
> -------------------------------------------
>
> Key: HDFS-12293
> URL: https://issues.apache.org/jira/browse/HDFS-12293
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: Wei-Chiu Chuang
> Assignee: Ajay Kumar
> Labels: newbie
> Attachments: HDFS-12293.01.patch, HDFS-12293.02.patch
>
>
> Found the following error message in precommit build
> https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-x86/488/testReport/junit/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailureReporting/testSuccessiveVolumeFailures/
> {noformat}
> 2017-08-10 09:36:53,619 [DataXceiver for client
> DFSClient_NONMAPREDUCE_670847838_18 at /127.0.0.1:55851 [Receiving block
> BP-219227751-172.17.0.2-1502357801473:blk_1073741829_1005]] WARN
> datanode.DataNode (BlockReceiver.java:<init>(287)) - IOException in
> BlockReceiver constructor. Cause is
> java.io.IOException: Not a directory
> at java.io.UnixFileSystem.createFileExclusively(Native Method)
> at java.io.File.createNewFile(File.java:1012)
> at
> org.apache.hadoop.hdfs.server.datanode.FileIoProvider.createFile(FileIoProvider.java:302)
> at
> org.apache.hadoop.hdfs.server.datanode.DatanodeUtil.createFileWithExistsCheck(DatanodeUtil.java:69)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice.createRbwFile(BlockPoolSlice.java:306)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl.createRbwFile(FsVolumeImpl.java:933)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl.createRbw(FsVolumeImpl.java:1202)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.createRbw(FsDatasetImpl.java:1356)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:215)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.getBlockReceiver(DataXceiver.java:1291)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:758)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:173)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:107)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:290)
> {noformat}
> It is not known what file was being created.
> What's interesting is that {{DatanodeUtil#createFileWithExistsCheck}} does
> carry file name in the exception message, but the exception handler at
> {{DataTransfer#run()}} and {{BlockReceiver#BlockReceiver}} ignores it:
> {code:title=BlockReceiver#BlockReceiver}
> // check if there is a disk error
> IOException cause = DatanodeUtil.getCauseIfDiskError(ioe);
> DataNode.LOG.warn("IOException in BlockReceiver constructor"
> + (cause == null ? "" : ". Cause is "), cause);
> if (cause != null) {
> ioe = cause;
> // Volume error check moved to FileIoProvider
> }
> {code}
> The logger should print the file name in addition to the cause.
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