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https://issues.apache.org/jira/browse/HDFS-63?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970798#action_12970798
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Prateek Sharma commented on HDFS-63:
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We are experiencing the same issue in Hadoop 0.18.2. Over the time, one of the
datanodes gets its disk space clogged, but on subsequent restart of the
process, the disk usage evens out. Is the issue still persistent in the
upgraded 0.20 versions?
> Datanode stops cleaning disk space
> ----------------------------------
>
> Key: HDFS-63
> URL: https://issues.apache.org/jira/browse/HDFS-63
> Project: Hadoop HDFS
> Issue Type: Bug
> Environment: Linux
> Reporter: Igor Bolotin
> Priority: Critical
>
> Here is the situation - DFS cluster running Hadoop version 0.19.0. The
> cluster is running on multiple servers with practically identical hardware.
> Everything works perfectly well, except for one thing - from time to time one
> of the data nodes (every time it's a different node) starts to consume more
> and more disk space. The node keeps going and if we don't do anything - it
> runs out of space completely (ignoring 20GB reserved space settings).
> Once restarted - it cleans disk rapidly and goes back to approximately the
> same utilization as the rest of data nodes in the cluster.
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