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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6829) Add peak memory usage counter for each task
Date Mon, 31 Jul 2017 21:50:00 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jason Lowe updated MAPREDUCE-6829:
    Fix Version/s:     (was: 2.9.0)

I reverted this from branch-2 due to the backward incompatibility that can manifest during
rolling upgrades while a job is running.  See the discussion in MAPREDUCE-6922.

> Add peak memory usage counter for each task
> -------------------------------------------
>                 Key: MAPREDUCE-6829
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6829
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>            Reporter: Yufei Gu
>            Assignee: Miklos Szegedi
>             Fix For: 3.0.0-alpha4
>         Attachments: MAPREDUCE-6829.000.patch, MAPREDUCE-6829.001.patch, MAPREDUCE-6829.002.patch,
MAPREDUCE-6829.003.patch, MAPREDUCE-6829.004.patch, MAPREDUCE-6829.005.patch
> Each task has counters PHYSICAL_MEMORY_BYTES and VIRTUAL_MEMORY_BYTES, which are snapshots
of memory usage of that task. They are not sufficient for users to understand peak memory
usage by that task, e.g. in order to diagnose task failures, tune job parameters or change
application design. This new feature will add two more counters for each task: PHYSICAL_MEMORY_BYTES_MAX
> This JIRA has the same feature from MAPREDUCE-4710.  I file this new YARN JIRA since
MAPREDUCE-4710 is pretty old one from MR 1.x era, it more or less assumes a branch-1 architecture,
should be close at this point.

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