[ https://issues.apache.org/jira/browse/IMPALA-9472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joe McDonnell reassigned IMPALA-9472: ------------------------------------- Assignee: Joe McDonnell > Keep metrics about the performance of the IO device used for the data cache > --------------------------------------------------------------------------- > > Key: IMPALA-9472 > URL: https://issues.apache.org/jira/browse/IMPALA-9472 > Project: IMPALA > Issue Type: Improvement > Components: Backend > Affects Versions: Impala 3.4.0 > Reporter: Joe McDonnell > Assignee: Joe McDonnell > Priority: Major > > The performance of the cache will be related to the performance of the > underlying disk. It is useful to add metrics to track how long it takes to > read, write, and eviction entries for the cache. This should be tracked on a > per-partition basis. In the case of reads, the performance can give an > indication of how often the OS has kept a cache entry in buffer cache or not. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org