Palash Chauhan created PHOENIX-7670:
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Summary: Region level thread pool for uncovered index to scan data
table rows
Key: PHOENIX-7670
URL: https://issues.apache.org/jira/browse/PHOENIX-7670
Project: Phoenix
Issue Type: Improvement
Reporter: Palash Chauhan
Fix For: 5.3.0
Every scan on an uncovered index creates a new thread pool to scan data table
rows. This can hurt performance due to the overhead of creating and closing the
thread pool with each new scanner. We can keep a region level thread pool which
can be used during uncovered index scans to scan data table rows. This can
greatly benefit applications consuming change records via CDC since that uses
an uncovered index.
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