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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10605) Manage the call timeout in the server
Date Tue, 25 Feb 2014 15:00:33 GMT
Nicolas Liochon created HBASE-10605:

             Summary: Manage the call timeout in the server
                 Key: HBASE-10605
                 URL: https://issues.apache.org/jira/browse/HBASE-10605
             Project: HBase
          Issue Type: Improvement
          Components: regionserver
    Affects Versions: 0.99.0
            Reporter: Nicolas Liochon
            Assignee: Nicolas Liochon
             Fix For: 0.99.0

Since HBASE-10566, we have an explicit call timeout available in the client.
We could forward it to the server, and use this information for:
- if the call is still in the queue, just cancel it
- if the call is under execution, makes this information available in RpcCallContext (actually
change the RpcCallContext#disconnectSince to something more generic), so it can be used by
the query under execution to stop its execution
- in the future, interrupt it to manage the case 'stuck on a dead datanode' or something similar
- if the operation has finished, don't send the reply to the client, as by definition the
client is not interested anymore.

>From this, it will be easy to manage the cancellation: disconnect/timeout/cancellation
are similar from a service execution PoV

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