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https://issues.apache.org/jira/browse/HADOOP-3574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650754#action_12650754
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Raghu Angadi commented on HADOOP-3574:
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Informing others won't hurt . but HDFS should not depend on that for any
important functionality since this Datanode is already in bad state.. we can
not expect it to do much.
> Better Datanode DiskOutOfSpaceException handling.
> -------------------------------------------------
>
> Key: HADOOP-3574
> URL: https://issues.apache.org/jira/browse/HADOOP-3574
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Reporter: Tsz Wo (Nicholas), SZE
>
> When a datanode ran out of disk space, it throws DiskOutOfSpaceException
> internally. However, it does not notify the writing client about the
> exception. As a result, the client will wait until socket timeout.
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