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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11295) RPC Server Reader thread can't shutdown if RPCCallQueue is full
Date Tue, 17 Feb 2015 23:24:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325100#comment-14325100
] 

Hudson commented on HADOOP-11295:
---------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #7138 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/7138/])
HADOOP-11295. RPC Server Reader thread can't shutdown if RPCCallQueue is full. Contributed
by Ming Ma. (kihwal: rev 685af8a3d0504724fe588daf3722519fedc45b01)
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
* hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
* hadoop-common-project/hadoop-common/CHANGES.txt


> RPC Server Reader thread can't shutdown if RPCCallQueue is full
> ---------------------------------------------------------------
>
>                 Key: HADOOP-11295
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11295
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Ming Ma
>            Assignee: Ming Ma
>             Fix For: 2.7.0
>
>         Attachments: HADOOP-11295-2.patch, HADOOP-11295-3.patch, HADOOP-11295-4.patch,
HADOOP-11295-5.patch, HADOOP-11295.006.patch, HADOOP-11295.patch
>
>
> If RPC server is asked to stop when RPCCallQueue is full, {{reader.join()}} will just
wait there. That is because
> 1. The reader thread is blocked on {{callQueue.put(call);}}.
> 2. When RPC server is asked to stop, it will interrupt all handler threads and thus no
threads will drain the callQueue.



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