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From "Vinay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1490) TransferFSImage should timeout
Date Wed, 29 Aug 2012 04:23:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13443791#comment-13443791
] 

Vinay commented on HDFS-1490:
-----------------------------

{quote}Why not introduce a new config which defaults to something like 1 minute?{quote}
Ok, agree. Will introduce new config for this.
{quote}In the test case, shouldn't you somehow notify the servlet to exit? Currently it waits
on itself, but nothing notifies it.{quote}
That was just added make the client call get timeout. Ideally while stopping the server, that
will be interrupted. Anyway I will add a timeout for that also.

Thanks todd, for comments. I will post new patch in sometime.
                
> TransferFSImage should timeout
> ------------------------------
>
>                 Key: HDFS-1490
>                 URL: https://issues.apache.org/jira/browse/HDFS-1490
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>            Reporter: Dmytro Molkov
>            Assignee: Dmytro Molkov
>            Priority: Minor
>         Attachments: HDFS-1490.patch, HDFS-1490.patch
>
>
> Sometimes when primary crashes during image transfer secondary namenode would hang trying
to read the image from HTTP connection forever.
> It would be great to set timeouts on the connection so if something like that happens
there is no need to restart the secondary itself.
> In our case restarting components is handled by the set of scripts and since the Secondary
as the process is running it would just stay hung until we get an alarm saying the checkpointing
doesn't happen.

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