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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18023) Log multi-* requests for more than threshold number of rows
Date Tue, 27 Jun 2017 21:21:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Elser updated HBASE-18023:
-------------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Closing for now. Can re-open if there's interest for a branch-1 backport.

Thanks again for the patch, David.

> 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: David Harju
>            Priority: Minor
>             Fix For: 2.0.0, 3.0.0
>
>         Attachments: HBASE-18023.master.001.patch, HBASE-18023.master.002.patch, HBASE-18023.master.003.patch,
HBASE-18023.master.004.patch
>
>
> 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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