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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEZ-1547) Make use of state change notifier in VertexManagerPlugins
Date Fri, 31 Oct 2014 09:24:33 GMT

    [ https://issues.apache.org/jira/browse/TEZ-1547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14191629#comment-14191629
] 

Siddharth Seth commented on TEZ-1547:
-------------------------------------

Also, please take a look at the temporary patch posted on TEZ-1522. That should solve the
problems of delays caused by waiting for a task to complete, as well as out of order scheduling
- at least to some extent. I'd be more comfortable getting something like that in to 0.5.2
(and this one into 0.6), since it's easy to pull out via configuration, doesn't touch VertexImpl
and scheduling / reconfiguration behavior, and doesn't introduce an incompatible change (which
in most likelihood no-one will be affected by). That said, this patch has gone through reviews
and testing.

> Make use of state change notifier in VertexManagerPlugins
> ---------------------------------------------------------
>
>                 Key: TEZ-1547
>                 URL: https://issues.apache.org/jira/browse/TEZ-1547
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>         Attachments: TEZ-1547.1.patch, TEZ-1547.3.patch, TEZ-1547.4.patch, TEZ-1547.5.patch,
TEZ-1547.6.patch, TEZ-1547.7.patch, TEZ-1547.8.patch
>
>
> Instead of the various APIs like onVertexStarted, simple notifications could be sent.
> Some existing APIs could end up being deprecated.



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