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https://issues.apache.org/jira/browse/HBASE-18023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16048692#comment-16048692
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stack commented on HBASE-18023:
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I added you as a contributor [~dharju]
I like [~clayb] suggestion. I think adding some threshold -- 1k items in a
mutation probably merits a mention in the log (with perhaps a pointer to doc or
issue on why many small batches will go down better than a few massive ones....
If log becomes annoying operator can up the threshold).
> Log multi-* requests for more than threshold number of rows
> -----------------------------------------------------------
>
> Key: HBASE-18023
> URL: https://issues.apache.org/jira/browse/HBASE-18023
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Clay B.
> Assignee: Josh Elser
> Priority: Minor
>
> Today, if a user happens to do something like a large multi-put, they can get
> through request throttling (e.g. it is one request) but still crash a region
> server with a garbage storm. We have seen regionservers hit this issue and it
> is silent and deadly. The RS will report nothing more than a mysterious
> garbage collection and exit out.
> Ideally, we could report a large multi-* request before starting it, in case
> it happens to be deadly. Knowing the client, user and how many rows are
> affected would be a good start to tracking down painful users.
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