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Ted Yu commented on HBASE-4010: ------------------------------- HLog depends on regionDir (computed from HRegionInfo) and HRegionInfo itself. The HLog instance is used by the new HRegion. > HMaster.createTable could be heavily optimized > ---------------------------------------------- > > Key: HBASE-4010 > URL: https://issues.apache.org/jira/browse/HBASE-4010 > Project: HBase > Issue Type: Improvement > Affects Versions: 0.90.3 > Reporter: Jean-Daniel Cryans > Fix For: 0.92.0 > > > Looking at the createTable method in HMaster (the one that's private), we > seem to be very inefficient: > - We set the enabled flag for the table for every region (should be done > only once). > - Every time we create a new region we create a new HLog and then close it > (reuse one instead or see if it's really necessary). > - We do one RPC to .META. per region (we should batch put). > This should provide drastic speedups even for those creating tables with just > 50 regions. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira