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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HADOOP-14940) Set default RPC timeout to 5 minutes
Date Tue, 10 Apr 2018 21:28:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yufei Gu reassigned HADOOP-14940:
---------------------------------

    Assignee:     (was: Yufei Gu)

> Set default RPC timeout to 5 minutes
> ------------------------------------
>
>                 Key: HADOOP-14940
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14940
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Yufei Gu
>            Priority: Major
>
> The motivation is well described in HADOOP-11252. 
> {quote}
> 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.
> {quote}
> However, HADOOP-11252 didn't set the default value to a meaningful timeout(it is zero,
which means infinity). User will still hit this issue by default. Maybe we should set the
default value to  a meaningful one.



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