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https://issues.apache.org/jira/browse/HBASE-15321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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churro morales updated HBASE-15321:
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Attachment: (was: HBASE-15321-v4.patch)
> Ability to open a HRegion from hdfs snapshot.
> ---------------------------------------------
>
> Key: HBASE-15321
> URL: https://issues.apache.org/jira/browse/HBASE-15321
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 2.0.0, 3.0.0, 1.5.0
> Reporter: churro morales
> Assignee: churro morales
> Attachments: HBASE-15321.patch, HBASE-15321.v5.patch
>
>
> Now that hdfs snapshots are here, we started to run our mapreduce jobs over
> hdfs snapshots. The thing is, hdfs snapshots are read-only point-in-time
> copies of the file system. Thus we had to modify the section of code that
> initialized the region internals in HRegion. We have to skip cleanup of
> certain directories if the HRegion is backed by a hdfs snapshot. I have a
> patch for trunk with some basic tests if folks are interested.
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