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Ramesh Reddy updated TEIID-81:
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Component/s: Query Engine
Fix Version/s: 6.x
Affects Version/s: 6.x
Cached plans are too big - can cause out of memory errors
---------------------------------------------------------
Key: TEIID-81
URL:
https://jira.jboss.org/jira/browse/TEIID-81
Project: Teiid
Issue Type: Bug
Components: Query Engine
Affects Versions: 6.x
Reporter: Steven Hawkins
Fix For: 6.x
Defect Tracker #12381: Running the coper load tests led to this conclusion:
Each cached plan takes on average 31 KB of memory.
At 140 unique queries / connection and 128 connection this requires over 550 MB of memory
just for the plan cache.
Half of the memory was consumed by char[]. Over 10% of the memory was used by
ElementSymbol objects.
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