Selvaganesan Govindarajan created TRAFODION-2716:
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Summary: Query compilation gets stuck at listSnapshots() at times
Key: TRAFODION-2716
URL: https://issues.apache.org/jira/browse/TRAFODION-2716
Project: Apache Trafodion
Issue Type: Bug
Reporter: Selvaganesan Govindarajan
As part of the query compilation, Admin.listSnapshots() is invoked to get the
latest snapshot of the table unconditionally. listSnapshots is an expensive
API to be called wen there are hundreds of snapshots. Admin.listTableSnapshots
API available in HBase 2.0 can list the snapshots for a given table.
To reduce the impact on the compilation when there are many snapshots, call
this API only when cqd TRAF_TABLE_SNAPSHOT_SCAN is set to LATEST or SUFFIX.
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