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https://issues.apache.org/jira/browse/HDFS-6604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048186#comment-14048186
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stack commented on HDFS-6604:
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lgtm
> The short-circuit cache doesn't correctly time out replicas that haven't been
> used in a while
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-6604
> URL: https://issues.apache.org/jira/browse/HDFS-6604
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.4.0
> Environment: Centos 6.5 and distribution Hortonworks Data Platform
> v2.1
> Reporter: Giuseppe Reina
> Assignee: Colin Patrick McCabe
> Priority: Critical
> Attachments: HDFS-6604.001.patch, HDFS-6604.002.patch
>
>
> When HDFS shortcircuit is enabled, the file descriptors of the deleted HDFS
> blocks are kept open until the cache is full. This prevents the operating
> system to free the space on disk.
> More details on the [mailing list
> thread|http://mail-archives.apache.org/mod_mbox/hbase-user/201406.mbox/%3CCAPjB-CA3RV=slhuhwue5cv3pc4+rffz10-tkydbfs9rt2de...@mail.gmail.com%3E]
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