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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CHUKWA-506) Add retry logic to MetricDataLoader
Date Sat, 11 Sep 2010 23:10:32 GMT

     [ https://issues.apache.org/jira/browse/CHUKWA-506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Yang updated CHUKWA-506:
-----------------------------

    Status: Patch Available  (was: Open)

Improve reliability for post Processor.

> Add retry logic to MetricDataLoader
> -----------------------------------
>
>                 Key: CHUKWA-506
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-506
>             Project: Chukwa
>          Issue Type: Improvement
>    Affects Versions: 0.4.0
>            Reporter: William Bajzek
>            Priority: Minor
>         Attachments: postProcessorRetry.patch
>
>
> When processing data in Chukwa, many steps along the way, when the encounter an error
condition, will attempt to reprocess the data a few times before giving up. This doesn't happen
in post processing (at least when using MetricDataLoader); for example if there is a SQLException
of any kind, it will move the data to the "inError" directory at which point it becomes AFAIK
a manual process to move the data back to be reprocessed, so it would be nice to retry a few
times in case the exception was transient (database was being bounced, or similar). 
> I will attach a patch to be reviewed.

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