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Date: Mon, 18 Jul 2011 08:21:00 +0000 (UTC)
From: "Uma Maheswara Rao G (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-1880) When Namenode network is unplugged,
 DFSClient operations waits for ever
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    [ https://issues.apache.org/jira/browse/HDFS-1880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066848#comment-13066848 ] 

Uma Maheswara Rao G commented on HDFS-1880:
-------------------------------------------

Hi Aaron,
I have seen similar issue HADOOP-6889.

 That issue introduces rpcTimeOut, But from waitForProxy apis that values has been passed as 0 (hard coded value).

I am just checking , whether i can use rpcTimeOut itself to control. ( since this change already committed). But in current code, i could not see the way to configure rpcTimeOut.

see https://issues.apache.org/jira/browse/HADOOP-6889

> When Namenode network is unplugged, DFSClient operations waits for ever
> -----------------------------------------------------------------------
>
>                 Key: HDFS-1880
>                 URL: https://issues.apache.org/jira/browse/HDFS-1880
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs client
>            Reporter: Uma Maheswara Rao G
>
> When NN/DN is shutdown gracefully, the DFSClient operations which are waiting for a response from NN/DN, will throw exception & come out quickly
> But when the NN/DN network is unplugged, the DFSClient operations which are waiting for a response from NN/DN, waits for ever.

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