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From "Phil Yang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-16285) Drop RPC requests if it must be considered as timeout at client
Date Tue, 26 Jul 2016 11:46:20 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phil Yang updated HBASE-16285:
------------------------------
    Status: Patch Available  (was: Open)

> Drop RPC requests if it must be considered as timeout at client
> ---------------------------------------------------------------
>
>                 Key: HBASE-16285
>                 URL: https://issues.apache.org/jira/browse/HBASE-16285
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>         Attachments: HBASE-16285-v1.patch
>
>
> After HBASE-15593, we have a timeout param in header of RPC requests. We can use it in
more scenes.
> A straightforward scene is to drop requests if it has waited so long in RPC queue and
has been dropped by client. Even if we handle this request and send the response back, it
will not be used any more. And client may have been sent a retry. In an extreme case, if the
server is slow, all requests may be timeout or queue-full-exception because we should handle
previous requests which have been dropped by client and many resources at server are wasted.



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