[jira] [Updated] (KAFKA-3857) Additional log cleaner metrics

["Kiran Pillarisetty (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-3857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kiran Pillarisetty updated KAFKA-3857:
--------------------------------------
    Reviewer: Ismael Juma
      Status: Patch Available  (was: Open)

[~ijuma] Since there was some discussion about Log Cleaner JMX metrics in 
https://issues.apache.org/jira/browse/KAFKA-3894 I thought you might be interested in this PR. Would you be able to review this or suggest some one else?

> Additional log cleaner metrics
> ------------------------------
>
>                 Key: KAFKA-3857
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3857
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Kiran Pillarisetty
>
> The proposal would be to add a couple of additional log cleaner metrics: 
> 1. Time of last log cleaner run 
> 2. Cumulative number of successful log cleaner runs since last broker restart.
> Existing log cleaner metrics (max-buffer-utilization-percent, cleaner-recopy-percent, max-clean-time-secs, max-dirty-percent) do not differentiate an idle log cleaner from a dead log cleaner. It would be useful to have the above two metrics added, to indicate whether log cleaner is alive (and successfully cleaning) or not.



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