Huaxiang Sun created HBASE-26255: ------------------------------------ Summary: 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
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. -- This message was sent by Atlassian Jira (v8.3.4#803005)