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https://issues.apache.org/jira/browse/MAPREDUCE-3068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129142#comment-13129142
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Chris Riccomini commented on MAPREDUCE-3068:
--------------------------------------------
Hey Arun,
Could you have a look at the patch I just put up? It uses putIfAbsent from
sanitizeEnv -> setEnvFromInputStringIfAbsent -> addToEnvironment. That way, any
env variables set via admin-env will only be applied if they aren't already set
in the environment.
This should allow apps to override the variables, I believe.
I thought it was a little goofy to have putIfAbsent specifically called out for
certain env variables and not for others, so I put them all in admin-env, and
made all admin-env variables putIfAbsent. That way it covers both the env
variables that you list out, as well as any other variables that someone may
add.
Is this OK?
Cheers,
Chris
> Should set MALLOC_ARENA_MAX for all YARN daemons and AMs/Containers
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-3068
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3068
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Chris Riccomini
> Priority: Blocker
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-3068.diff, MAPREDUCE-3068.diff,
> MAPREDUCE-3068.diff, MAPREDUCE-3068.diff, MAPREDUCE-3068.diff,
> MAPREDUCE-3068.diff
>
>
> This is same as HADOOP-7154 but for yarn. RM, NM, AM and containers should
> all have this.
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