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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-12909) Support asynchronous RPC calls
Date Thu, 10 Mar 2016 00:42:40 GMT
Tsz Wo Nicholas Sze created HADOOP-12909:
--------------------------------------------

             Summary: Support asynchronous RPC calls
                 Key: HADOOP-12909
                 URL: https://issues.apache.org/jira/browse/HADOOP-12909
             Project: Hadoop Common
          Issue Type: New Feature
          Components: ipc
            Reporter: Tsz Wo Nicholas Sze
            Assignee: Xiaobing Zhou


In ipc.Client, the underlying mechanism is already supporting asynchronous calls -- the calls
shares a connection, the call requests are sent using a thread pool and the responses can
be out of order.  Indeed, synchronized call is implemented by invoking wait() in the caller
thread in order to wait for the server response.

In this JIRA, we change ipc.Client to support asynchronous mode.  In asynchronous mode, it
return once the request has been sent out but not wait for the response from the server.



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