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https://issues.apache.org/jira/browse/HADOOP-990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474569
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dhruba borthakur commented on HADOOP-990:
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+1. Code looks good.
One comment: I would rather dump a log message if the block returned from the
namenode in locateFollowingBlock() returns anything other than 0.
> Datanode doesn't retry when write to one (full)drive fail
> ---------------------------------------------------------
>
> Key: HADOOP-990
> URL: https://issues.apache.org/jira/browse/HADOOP-990
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Reporter: Koji Noguchi
> Assigned To: Raghu Angadi
> Attachments: HADOOP-990-1.patch, HADOOP-990-2.patch,
> HADOOP-990-3.patch
>
>
> When one drive is 99.9% full and datanode choose that drive to write, it
> fails with
> 2007-02-07 18:16:56,574 WARN org.apache.hadoop.dfs.DataNode: DataXCeiver
> org.apache.hadoop.util.DiskChecker$DiskOutOfSpaceException: No space left on
> device
> at org.apache.hadoop.dfs.DataNode$DataXceiver.writeBlock(DataNode.java:801)
> at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:563)
> at java.lang.Thread.run(Thread.java:595)
> Combined with HADOOP-940, these failed blocks stay under-replicated.
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