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https://issues.apache.org/jira/browse/HADOOP-11252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsuyoshi Ozawa updated HADOOP-11252:
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Target Version/s: 2.6.4, 2.8.0 (was: 2.8.0, 2.6.4)
Hadoop Flags: Incompatible change,Reviewed (was: Reviewed)
Release Note:
This fix includes public method interface change.
A follow-up jira for this incompatibly for branch-2.7 is HADOOP-13579.
> RPC client does not time out by default
> ---------------------------------------
>
> Key: HADOOP-11252
> URL: https://issues.apache.org/jira/browse/HADOOP-11252
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.5.0
> Reporter: Wilfred Spiegelenburg
> Assignee: Masatake Iwasaki
> Priority: Critical
> Fix For: 2.8.0, 2.7.3, 2.6.4, 3.0.0-alpha1
>
> Attachments: HADOOP-11252.002.patch, HADOOP-11252.003.patch,
> HADOOP-11252.004.patch, HADOOP-11252.patch
>
>
> The RPC client has a default timeout set to 0 when no timeout is passed in.
> This means that the network connection created will not timeout when used to
> write data. The issue has shown in YARN-2578 and HDFS-4858. Timeouts for
> writes then fall back to the tcp level retry (configured via tcp_retries2)
> and timeouts between the 15-30 minutes. Which is too long for a default
> behaviour.
> Using 0 as the default value for timeout is incorrect. We should use a sane
> value for the timeout and the "ipc.ping.interval" configuration value is a
> logical choice for it. The default behaviour should be changed from 0 to the
> value read for the ping interval from the Configuration.
> Fixing it in common makes more sense than finding and changing all other
> points in the code that do not pass in a timeout.
> Offending code lines:
> https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java#L488
> and
> https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RPC.java#L350
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