[jira] [Commented] (CASSANDRA-14436) Add sampler for query time and expose with nodetool

["Dinesh Joshi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-14436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16603348#comment-16603348 ] 

Dinesh Joshi commented on CASSANDRA-14436:
------------------------------------------

Thank you for committing this, [~iamaleksey]!

> Add sampler for query time and expose with nodetool
> ---------------------------------------------------
>
>                 Key: CASSANDRA-14436
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14436
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Chris Lohfink
>            Assignee: Chris Lohfink
>            Priority: Major
>              Labels: 4.0-feature-freeze-review-requested, pull-request-available
>             Fix For: 4.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Create a new {{nodetool profileload}} that functions just like toppartitions but with more data, returning the slowest local reads and writes on the host during a given duration and highest frequency touched partitions (same as {{nodetool toppartitions}}). Refactor included to extend use of the sampler for uses outside of top frequency (max instead of total sample values).
> Future work to this is to include top cpu and allocations by query and possibly tasks/cpu/allocations by stage during time window.



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