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Posted to issues@tez.apache.org by "Eric Wohlstadter (JIRA)" <ji...@apache.org> on 2018/03/09 01:32:00 UTC

[jira] [Assigned] (TEZ-2161) Support CRDT aggregation models for counters

     [ https://issues.apache.org/jira/browse/TEZ-2161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Wohlstadter reassigned TEZ-2161:
-------------------------------------

    Assignee: Eric Wohlstadter

> Support CRDT aggregation models for counters 
> ---------------------------------------------
>
>                 Key: TEZ-2161
>                 URL: https://issues.apache.org/jira/browse/TEZ-2161
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Hitesh Shah
>            Assignee: Eric Wohlstadter
>            Priority: Major
>
> Some counters such as last event received time need to be handled different to say bytes read counters. Bytes reads requires a summation across all tasks within a vertex. The received time requires doing a max() across all the tasks. First event received time would likely need a min().



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