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From "Mithun Radhakrishnan (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-17576) Improve progress-reporting in TezProcessor
Date Fri, 22 Sep 2017 00:08:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mithun Radhakrishnan reassigned HIVE-17576:
-------------------------------------------


> 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}}.



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