[jira] [Commented] (HADOOP-11252) RPC client does not time out by default

["Mohammad Shahid Khan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-11252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15066241#comment-15066241 ] 

Mohammad Shahid Khan commented on HADOOP-11252:
-----------------------------------------------

+1 for current patch. 
And the [#Wilfred Spiegelenburg]'s Comment
bq. One point I think needs to be checked is the getTimeOut() in Client.java. It uses the ping interval as a timeout, if ping is not enabled. I think that this should be changed to use the same timeout as this change introduces. Also changing the time out based on the ping interval is not really logical. This jira might not be the correct one to introduce that change so I left it out.

I think we should track this in separate jira.  Any thoughts? 

> 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: Wilfred Spiegelenburg
>            Priority: Critical
>         Attachments: HADOOP-11252.002.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



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)