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From "Xiaobing Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12909) Change ipc.Client to support asynchronous calls
Date Tue, 15 Mar 2016 20:36:33 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiaobing Zhou updated HADOOP-12909:
-----------------------------------
    Attachment: HADOOP-12909-HDFS-9924.001.patch

V001 only rebased trunk since V000 failed to apply on it.

> Change ipc.Client to support asynchronous 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
>         Attachments: HADOOP-12909-HDFS-9924.000.patch, HADOOP-12909-HDFS-9924.001.patch
>
>
> 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, synchronous 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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