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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6099) Allow configuring the IPC module to send pings
Date Tue, 07 Jul 2009 03:02:14 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12727891#action_12727891

dhruba borthakur commented on HADOOP-6099:

@Konstantin: your assumption is right. is this ok with you?

> Allow configuring the IPC module to send pings
> ----------------------------------------------
>                 Key: HADOOP-6099
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6099
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>         Attachments: ipcPing.txt
> The IPC Client sets a socketTimeout for the time period specified by the pingInterval
and then sends a ping every pingInterval. This means that if a RPC server does not respond
to a RPC client, then the RPC client blocks forever. This is a problem for applications that
wants to switch quickly from one un-responsive HDFS cluster  to a good one. 

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