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https://issues.apache.org/jira/browse/HBASE-2471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12918282#action_12918282
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stack commented on HBASE-2471:
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Should be easy fix. From j-d "If regiondir does not exist, do not create a
recovered.edits file... skip"... In split logs need to keep a list of
non-existent regions tooo... so we don't check fs for each encountered edit.
> Splitting logs, we'll make an output file though the region no longer exists
> ----------------------------------------------------------------------------
>
> Key: HBASE-2471
> URL: https://issues.apache.org/jira/browse/HBASE-2471
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.90.0
>
>
> The "human unit tester" (Kannan) last night wondered what happens splitting
> logs and we come across an edit whose region has since been removed. Taking
> a look, it looks like we'll create the output file and write the edits for
> the no-longer-extant region anyways. This will leave litter in the
> filesystem -- region split files that will never be used nor removed. This
> issue is about verifying that indeed this is whats happening (We do
> SequenceFile.createWriter with the overwrite flag set to true which tracing
> seems to mean create all intermediary directories -- to be verified) and if
> it indeed is happening, fixing split so unless the region dir exists, don't
> write out edits.. just drop them.
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