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https://issues.apache.org/jira/browse/KUDU-1587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186282#comment-17186282
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ASF subversion and git services commented on KUDU-1587:
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Commit c6d438ab417009e8007a1de274178d0bcf0dfb63 in kudu's branch
refs/heads/master from Alexey Serbin
[ https://gitbox.apache.org/repos/asf?p=kudu.git;h=c6d438a ]
[tserver] add test to reproduce KUDU-1587 conditions
Added a test to reproduce conditions described in KUDU-1587.
As of now, the test is disabled: it will be enabled once
KUDU-1587 is addressed.
Change-Id: I515a1b26152680ee9b9361afcf84fec39b8f962d
Reviewed-on: http://gerrit.cloudera.org:8080/16312
Tested-by: Kudu Jenkins
Reviewed-by: Andrew Wong <[email protected]>
> Memory-based backpressure is insufficient on seek-bound workloads
> -----------------------------------------------------------------
>
> Key: KUDU-1587
> URL: https://issues.apache.org/jira/browse/KUDU-1587
> Project: Kudu
> Issue Type: Bug
> Components: tserver
> Affects Versions: 0.10.0
> Reporter: Todd Lipcon
> Assignee: Alexey Serbin
> Priority: Critical
> Labels: roadmap-candidate
> Attachments: graph.png, queue-time.png
>
>
> I pushed a uniform random insert workload from a bunch of clients to the
> point that the vast majority of bloom filters no longer fit in buffer cache,
> and the compaction had fallen way behind. Thus, every inserted row turns into
> 40+ seeks (due to non-compact data) and takes 400-500ms. In this kind of
> workload, the current backpressure (based on memory usage) is insufficient to
> prevent ridiculously long queues.
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