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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12909) Change ipc.Client to support asynchronous calls
Date Thu, 07 Apr 2016 06:16:25 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15229762#comment-15229762
] 

Hudson commented on HADOOP-12909:
---------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #9575 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/9575/])
HADOOP-12909. Change ipc.Client to support asynchronous calls.  (szetszwo: rev a62637a413ad88c4273d3251892b8fc1c05afa34)
* hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestIPC.java
* hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestAsyncIPC.java
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java


> 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,
HADOOP-12909-HDFS-9924.002.patch, HADOOP-12909-HDFS-9924.003.patch, HADOOP-12909-HDFS-9924.004.patch,
HADOOP-12909-HDFS-9924.005.patch, HADOOP-12909-HDFS-9924.006.patch, HADOOP-12909-HDFS-9924.007.patch,
HADOOP-12909-HDFS-9924.008.patch, HADOOP-12909-HDFS-9924.009.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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