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https://issues.apache.org/jira/browse/HDFS-10459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Badger updated HDFS-10459:
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Affects Version/s: 0.22.0
0.23.0
Status: Patch Available (was: Open)
> getTurnOffTip computes needed block incorrectly for threshold = 1
> -----------------------------------------------------------------
>
> Key: HDFS-10459
> URL: https://issues.apache.org/jira/browse/HDFS-10459
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.23.0, 0.22.0
> Reporter: Eric Badger
> Attachments: HDFS-10459.001.patch
>
>
> The fix added in HDFS-2002 only works in cases where threshold < 1, but not
> when threshold = 1. There is a '+1' added to the computation because of this
> assumption. I propose that instead of adding a '+1', we just set
> blockThreshold to be the ceiling of blocksTotal*threshold. Since we need to
> be >= blockThreshold to get out of safe mode, this will work. >14.9 is the
> same as =15, since blocks work in integer values.
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