[jira] Updated: (HADOOP-902) NPE in DFSOutputStream.closeBackupStream()

["Raghu Angadi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Raghu Angadi updated HADOOP-902:
--------------------------------

    Attachment: HADOOP-902.patch

> NPE in DFSOutputStream.closeBackupStream()
> ------------------------------------------
>
>                 Key: HADOOP-902
>                 URL: https://issues.apache.org/jira/browse/HADOOP-902
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Raghu Angadi
>         Assigned To: Raghu Angadi
>             Fix For: 0.11.0
>
>         Attachments: HADOOP-902.patch
>
>
> After HADOOP-757 is checked in, Devraj noticed following NPE:
> java.lang.NullPointerException
> at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.closeBackupStream(DFSClient.java:972)
> at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.endBlock(DFSClient.java:1219)
> at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.flush(DFSClient.java:1181)
> at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.write(DFSClient.java:1163)
> at org.apache.hadoop.fs.FSDataOutputStream$Summer.write(FSDataOutputStream.java:85)
> at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:114)
> at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
> at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
> at java.io.DataOutputStream.flush(DataOutputStream.java:106)
> at java.io.FilterOutputStream.close(FilterOutputStream.java:140)
> at org.apache.hadoop.io.SequenceFile$Writer.close(SequenceFile.java:558)
> at org.apache.hadoop.mapred.SequenceFileOutputFormat$1.close(SequenceFileOutputFormat.java:72)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:331)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1367)
> I will submit a patch after confirming its ok for backupStream to be null at this stage.

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