[jira] [Commented] (HIVE-17576) Improve progress-reporting in TezProcessor

["Mithun Radhakrishnan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-17576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16175702#comment-16175702 ] 

Mithun Radhakrishnan commented on HIVE-17576:
---------------------------------------------

Hmm... Looks like the {{ProgressHelper}} is only available in Tez 0.9. This might need to go only to {{master}}. :/

> Improve progress-reporting in TezProcessor
> ------------------------------------------
>
>                 Key: HIVE-17576
>                 URL: https://issues.apache.org/jira/browse/HIVE-17576
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Mithun Radhakrishnan
>            Assignee: Chris Drome
>
> Another one on behalf of [~selinazh] and [~cdrome]. Following the example in [Apache Tez's {{MapProcessor}}|https://github.com/apache/tez/blob/247719d7314232f680f028f4e1a19370ffb7b1bb/tez-mapreduce/src/main/java/org/apache/tez/mapreduce/processor/map/MapProcessor.java#L88], {{TezProcessor}} ought to use {{ProgressHelper}} to report progress for a Tez task. As per [~kshukla]'s advice,
> {quote}
> Tez... provides {{getProgress()}} API for {{AbstractLogicalInput(s)}} which will give the correct progress value for a given Input. The TezProcessor(s) in Hive should use this to do something similar to what MapProcessor in Tez does today, which is use/override ProgressHelper to get the input progress and then set the progress on the processorContext.
> ...
> The default behavior of the ProgressHelper class sets the processor progress to be the average of progress values from all inputs.
> {quote}
> This code is -whacked from- *inspired by* {{MapProcessor}}'s use of {{ProgressHelper}}.
> (For my reference, YHIVE-978.)



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