[ http://issues.apache.org/jira/browse/HADOOP-324?page=all ]
Wendy Chien reassigned HADOOP-324:
----------------------------------
Assignee: Wendy Chien
> "IOException: No space left on device" is handled incorrectly
> -------------------------------------------------------------
>
> Key: HADOOP-324
> URL: http://issues.apache.org/jira/browse/HADOOP-324
> Project: Hadoop
> Issue Type: Bug
> Affects Versions: 0.3.2
> Reporter: Konstantin Shvachko
> Assigned To: Wendy Chien
>
> When a data node disk is almost full the name node still assigns blocks to
> the data node.
> By the time the data node actually tries to write that data to disk the disk
> may become full.
> Current implementation forces the data node to shutdown after that.
> The expected behavior is to report the block write failure and continue.
> The Exception looks as follows:
> java.io.IOException: No space left on device
> at java.io.FileOutputStream.writeBytes(Native Method)
> at java.io.FileOutputStream.write(FileOutputStream.java:260)
> at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
> at java.io.BufferedOutputStream.write(BufferedOutputStream.java:109)
> at java.io.DataOutputStream.write(DataOutputStream.java:90)
> at org.apache.hadoop.dfs.DataNode$DataXceiver.writeBlock(DataNode.java:623)
> at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:410)
> at java.lang.Thread.run(Thread.java:595)
> 2006-06-26 08:26:04,751 INFO org.apache.hadoop.dfs.DataNode: Finishing
> DataNode in: /tmp/hadoop/dfs/data/data
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