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https://issues.apache.org/jira/browse/MAPREDUCE-3382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146758#comment-13146758
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Vinod Kumar Vavilapalli commented on MAPREDUCE-3382:
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Stumbled on this while discussing with [~rohini] on random things in MRV2 ;)
We can one of the couple of things:
- MR AMs could go through a separate http proxy inside the cluster to which
network ACLs can permit trips to outside world.
- We could overload the web-proxy that we already have in ResourceManager for
this purpose.
Either way we need to fix MR AM to use a http proxy configuration.
> Network ACLs can prevent AMs to ping the Job-end notification URL
> -----------------------------------------------------------------
>
> Key: MAPREDUCE-3382
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3382
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster, mrv2
> Affects Versions: 0.23.0
> Reporter: Vinod Kumar Vavilapalli
> Fix For: 0.23.1
>
>
> MAPREDUCE-3028 added support for job-end notification from MR AMs after the
> job finishes. Network ACLs can have an implication on this one - outgoing
> connections from the compute nodes may be restricted in some settings and so
> job-end notification( that can originate from the AMs which may run on random
> nodes in the cluster) may have issues.
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