[ https://issues.apache.org/jira/browse/HBASE-20056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ShivaKumar SS updated HBASE-20056: ---------------------------------- Issue Type: Bug (was: Improvement) > Performance optimization on MultiTableInputFormatBase#getSplits() > ------------------------------------------------------------------ > > Key: HBASE-20056 > URL: https://issues.apache.org/jira/browse/HBASE-20056 > Project: HBase > Issue Type: Bug > Components: hbase, mapreduce > Affects Versions: 1.0.1, 1.3.1 > Reporter: ShivaKumar SS > Priority: Major > Labels: hbase, mapreduce, performance > > Currently this method iterates the List of scan objects to get splits and for > each iteration it opens the HConnection object and closes it, which is heavy. > It can be optimized such that a single Hconnection can be used to compute all > the splits of for all the scan objects for their splits computation. > This optimization will help in reducing the launch time for MR Job. -- This message was sent by Atlassian JIRA (v7.6.3#76005)