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https://issues.apache.org/jira/browse/TEZ-2011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14299215#comment-14299215
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Bikas Saha commented on TEZ-2011:
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bq. synchronized in onVertexManagerEventReceived, onRootVertexInitialized,
onVertexStateUpdated, onVertexStarted added unintentionally
No. Added them to all public methods to make it consistently locked.
Thanks for the review!
> InputReadyVertexManager not resilient to updates in parallelism
> ---------------------------------------------------------------
>
> Key: TEZ-2011
> URL: https://issues.apache.org/jira/browse/TEZ-2011
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: TEZ-2011.1.patch
>
>
> It sets up its internal book-keeping upon onVertexStarted() but that
> book-keeping can be wrong if its parallelism changes after that. It needs to
> subscribe to Vertex configured event for its source vertices to make sure
> that all changes have been made before initializing its internal state.
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