[
https://issues.apache.org/jira/browse/HADOOP-11780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15529887#comment-15529887
]
Hudson commented on HADOOP-11780:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10507 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10507/])
HADOOP-11780. Prevent IPC reader thread death. Contributed by Daryn (kihwal:
rev e19b37ead23805c7ed45bdcbfa7fdc8898cde7b2)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
> Prevent IPC reader thread death
> -------------------------------
>
> Key: HADOOP-11780
> URL: https://issues.apache.org/jira/browse/HADOOP-11780
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.0.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-11780.patch
>
>
> Reader threads can die to a race condition with the responder thread. If the
> server's ipc handler cannot send a response in one write, it delegates
> sending the rest of the response to the responder thread.
> The race occurs when the responder thread has an exception writing to the
> socket. The responder closes the socket. This wakes up the reader polling
> on the socket. If a {{CancelledKeyException}} is thrown, which is a runtime
> exception, the reader dies. All connections serviced by that reader are now
> in limbo until the client possibly times out. New connections play roulette
> as to whether they are assigned to a defunct reader.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
