David Rorke created IMPALA-8733:
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Summary: Add "bytes in core" metric for data cache
Key: IMPALA-8733
URL: https://issues.apache.org/jira/browse/IMPALA-8733
Project: IMPALA
Issue Type: Improvement
Components: Backend
Affects Versions: Impala 3.3.0
Reporter: David Rorke
The remote-read data cache is a major consumer of physical memory.
It would be useful to have a "bytes in core" metric for the cache that reports
the current in core physical size of the Linux page cache memory for the data
cache. This is useful for tuning data cache size or analyzing the impact of
the data cache on host memory use and memory pressure.
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