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https://issues.apache.org/jira/browse/HBASE-26255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Huaxiang Sun resolved HBASE-26255.
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Fix Version/s: 2.4.7
2.3.7
3.0.0-alpha-2
Resolution: Fixed
> Add an option to use region location from meta table in
> TableSnapshotInputFormat
> --------------------------------------------------------------------------------
>
> Key: HBASE-26255
> URL: https://issues.apache.org/jira/browse/HBASE-26255
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Affects Versions: 2.3.6
> Reporter: Huaxiang Sun
> Assignee: Huaxiang Sun
> Priority: Major
> Fix For: 3.0.0-alpha-2, 2.3.7, 2.4.7
>
>
> TableSnapshotInputFormat currently calculates block locality of a region to
> decide the best location to run the task. While this works for a small scale
> table snapshot, we found that for a table snapshot with many regions, the
> locality calculation takes too much time.
> In the case of a table with high locality, we can use region location from
> meta table to decide a snapshot region's location. Add an option to support
> it.
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