[jira] [Commented] (CASSANDRA-14796) Provide a tool which allows users to force manual compaction by ks.table and partition key

["Chris Lohfink (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-14796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16632504#comment-16632504 ] 

Chris Lohfink commented on CASSANDRA-14796:
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Can be a convenience wrapper over [forceKeyspaceCompactionForTokenRange|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/service/StorageServiceMBean.java#L286], you can calculate the token and do this with {{nodetool compact}} with {{-st}} and {{-et}} for now

> Provide a tool which allows users to force manual compaction by ks.table and partition key
> ------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14796
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14796
>             Project: Cassandra
>          Issue Type: Wish
>            Reporter: Joseph Lynch
>            Priority: Minor
>
> It's somewhat common to have a "hot partition" or otherwise "bad partition" that is causing neighbors to fail. In addition to CASSANDRA-12106, I think it would be really useful to have an optional partition key argument to {{nodetool compact}} (similar to {{getendpoints}}) which would determine which sstables a partition resides in (similar to {{getsstables}}) and then run manual compaction on just those sstables.
> I know at Netflix a common way that we "mitigate" these bad partitions is to delete them, but if the partition is really large it would be nice to be able to delete them _and_ then force compaction of sstables containing them. Obviously {{gc_grace}} get's in the way but it seems like a cheap/useful tool either way.



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