[ https://issues.apache.org/jira/browse/HBASE-20579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16478459#comment-16478459 ]
Ted Yu commented on HBASE-20579: -------------------------------- If you have tested your patch on cluster, can you share performance improvement numbers ? Thanks > Improve copy snapshot manifest in ExportSnapshot > ------------------------------------------------ > > Key: HBASE-20579 > URL: https://issues.apache.org/jira/browse/HBASE-20579 > Project: HBase > Issue Type: Improvement > Components: mapreduce > Affects Versions: 1.4.0, 1.5.0, 2.0.0 > Reporter: Jingyun Tian > Assignee: Jingyun Tian > Priority: Minor > Fix For: 3.0.0, 2.1.0 > > Attachments: HBASE-20579.master.001.patch, > HBASE-20579.master.002.patch > > > ExportSnapshot need to copy snapshot manifest to destination cluster first, > then setOwner and setPermission for those paths. But it's done with one > thread, which lead to a long time to submit the job if your snapshot is big. > I tried to make them processing in parallel, which can reduce the total time > of submitting dramatically. -- This message was sent by Atlassian JIRA (v7.6.3#76005)