Joe McDonnell created IMPALA-10803:
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Summary: Switch default data cache eviction policy to LIRS
Key: IMPALA-10803
URL: https://issues.apache.org/jira/browse/IMPALA-10803
Project: IMPALA
Issue Type: Improvement
Components: Backend
Affects Versions: Impala 4.1
Reporter: Joe McDonnell
Assignee: Joe McDonnell
The data cache currently defaults to using LRU for the cache eviction policy.
In IMPALA-8690, we added support for LIRS, a scan resistant eviction policy.
This is now stable, and we should switch to using LIRS by default. It is likely
to have better performance characteristics than LRU for most workloads.
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