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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1141) remove HintedHandOffManager.deliverAllHints
Date Thu, 03 Jun 2010 18:32:59 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Williams updated CASSANDRA-1141:
----------------------------------------

    Attachment: 1141.txt

Verified the dHTE scenario, patch to remove dAH as describe and expose dHTE in jmx via StorageService.

> remove HintedHandOffManager.deliverAllHints
> -------------------------------------------
>
>                 Key: CASSANDRA-1141
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1141
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Brandon Williams
>            Priority: Minor
>             Fix For: 0.6.3
>
>         Attachments: 1141.txt
>
>
> deliverAllHints seems to be a "just in case we miss the onAlive signal to send hints
over," but the constant scanning of the hint rows it generates is extremely painful.
> I'd like to do 3 things here:
> 1. test that, if node X and Y are in the cluster, and Y goes down, then X goes down,
then Y comes back up, then X comes back up [with enough time for each change that FD recognizes
it], that X gets deliverHintsToEndpoint called for Y.  I think it will, but we should test
to be sure.
> 2. remove HHOM.deliverAllHints
> 3. expose HHOM.deliverHintsToEndpoint to jmx so it can be manually invoked, Just In Case

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