[jira] [Commented] (HBASE-20234) Expose in-memory compaction metrics

["Michael Stack (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-20234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17020746#comment-17020746 ] 

Michael Stack commented on HBASE-20234:
---------------------------------------

Unscheduling a subtask since gone stale/unaddressed.

> Expose in-memory compaction metrics
> -----------------------------------
>
>                 Key: HBASE-20234
>                 URL: https://issues.apache.org/jira/browse/HBASE-20234
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Michael Stack
>            Assignee: Anastasia Braginsky
>            Priority: Major
>
> Hard to glean insight from how well in-memory compaction is doing currently. It dumps stats into the logs but better if they were available to a dashboard. This issue is about exposing a couple of helpful counts. There are already by-region metrics. We can add a few for in-memory compaction (Help me out [~anastas]... what counts would be best to expose).
> Flush related metrics include....
> {code}
> Namespace_default_table_tsdb-tree_region_cfbf23e7330a1a2bbde031f9583d3415_metric_flushesQueuedCount: {
> description: "Number flushes requested/queued for this region",
> value: 0
> {
> description: "The number of cells flushed to disk",
> value: 0
> },
> {
> description: "The total amount of data flushed to disk, in bytes",
> value: 0
> },
> ...
> {code}



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