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Subject [GitHub] [trafodion] selvaganesang opened a new pull request #1870: [TRAFODION-3335] DDL takes a longer time when there are many snapshots
Date Tue, 18 Feb 2020 05:34:43 GMT
selvaganesang opened a new pull request #1870: [TRAFODION-3335] DDL takes a longer time when
there are many snapshots
URL: https://github.com/apache/trafodion/pull/1870
 
 
   Avoided use of the HBaseAdmin.listSnapshots() that causes unnecessary overhead whereever
it is possible
   
   HBaseAdmin.listSnapshots will continue to be called when CQD TRAF_TABLE_SNAPSHOT_SCAN is
set to 'LATEST'.
   
   Removed latest snapshot name being part of table descriptor and NATable
     Added code to get the latest snapshot at the time of code generation
     It was done unconditionally at times and this was causing performance problems during
DDL
        when there are many snapshots in the cluster.

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