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From "Aaron T. Myers (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8116) HA: RetriableCommand is using RetryPolicy incorrectly after HADOOP-7896
Date Tue, 28 Feb 2012 00:47:48 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HADOOP-8116:
-----------------------------------

    Attachment: HADOOP-8116-HDFS-1623.patch

Here's a patch which addresses the issue. I also noticed while fixing this issue that TestCopyMapper
wouldn't have worked because HADOOP-8068 results in an additional exception wrapping, which
the test wasn't taking into account.
                
> HA: RetriableCommand is using RetryPolicy incorrectly after HADOOP-7896
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-8116
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8116
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: util
>    Affects Versions: HA Branch (HDFS-1623)
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: HADOOP-8116-HDFS-1623.patch
>
>
> HADOOP-7896 (on the HA branch) refactored RetryAction from an enum to a class, and also
moved the act of sleeping to delay retries from the RetryPolicy implementations into RetryInvocationHandler.
RetriableCommand, in the rewritten distcp tool, uses RetryPolicy and associated classes from
o.a.h.io.retry. When MAPREDUCE-2765 was merged into the HA branch, RetriableCommand wasn't
adjusted accordingly to make use of the new structure of the o.a.h.io.retry classes.
> It's probably generally not kosher for RetriableCommand to be using the RetryPolicy classes
at all, since they're not really intended to be used except by RetryInvocationHandler. But,
regardless, this JIRA aims to make distcp's use of the o.a.h.io.retry classes functional again.

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