[jira] [Commented] (TEZ-1008) Vertex V_INIT should be sent to downstream vertices only after vertex is initialized

["Hitesh Shah (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-1008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14587274#comment-14587274 ] 

Hitesh Shah commented on TEZ-1008:
----------------------------------

I dont think this was fixed. One reason was performance. Not sending a V_INIT means that a downstream vertex cannot start initializing. In some cases, initialization ( large no. of splits ) can take a long time. 

> Vertex V_INIT should be sent to downstream vertices only after vertex is initialized
> ------------------------------------------------------------------------------------
>
>                 Key: TEZ-1008
>                 URL: https://issues.apache.org/jira/browse/TEZ-1008
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Hitesh Shah
>            Assignee: Rekha Joshi
>
> Current impl sends V_INIT event even though the vertex may be initializing itself. Downstream vertices may be dependent on initialized info of upstream. 
> Related fix in recovery for TEZ-998 should be reverted as part of this jira.  



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