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From "Aaron T. Myers (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8068) HA: void methods can swallow exceptions when going through failover path
Date Wed, 15 Feb 2012 02:29:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208197#comment-13208197
] 

Aaron T. Myers commented on HADOOP-8068:
----------------------------------------

+1, the patch looks good to me.

I also tested this patch over night on a cluster and it seems to have fixed the problem I
was observing, which occurred several times without this patch.
                
> HA: void methods can swallow exceptions when going through failover path
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-8068
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8068
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: ha, ipc
>    Affects Versions: HA Branch (HDFS-1623)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Blocker
>         Attachments: hadoop-8068.txt
>
>
> While running through scale testing, we saw an issue where clients were getting LeaseExpiredExceptions.
We eventually tracked it down to the fact that some {{create}} calls had timed out (having
been sent to a NN just before it crashed) but the resulting exception was swallowed by the
retry policy code paths.

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