You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@impala.apache.org by "David Rorke (JIRA)" <ji...@apache.org> on 2019/07/02 01:02:00 UTC

[jira] [Created] (IMPALA-8733) Add "bytes in core" metric for data cache

David Rorke created IMPALA-8733:
-----------------------------------

             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.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)