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https://issues.apache.org/jira/browse/HDFS-1725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006062#comment-13006062
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Ivan Kelly commented on HDFS-1725:
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The TestFileConcurrentReader failure seems to be happening on a lot of builds.
It's caused by the process running out of file handles. Maybe ulimit needs to
be changed on the hudson server.
> Cleanup FSImage construction
> ----------------------------
>
> Key: HDFS-1725
> URL: https://issues.apache.org/jira/browse/HDFS-1725
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ivan Kelly
> Assignee: Ivan Kelly
> Fix For: 0.23.0
>
> Attachments: HDFS-1725.diff, HDFS-1725.diff, HDFS-1725.diff
>
>
> FSImage construction is messy. Sometimes the storagedirectories in use are
> set straight away, sometimes they are not. This makes it hard for anything
> under FSImage (i.e. FSEditLog) to make assumptions about what it can use.
> Therefore, this patch makes FSImage set the storage directories in use during
> construction, and never allows them to change. If you want to change
> storagedirectories you create a new image.
> Also, all the construction code should be the same with the only difference
> being the parameters passed. When not passed, these should get sensible
> defaults.
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