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Posted to commits@samza.apache.org by "Chris Riccomini (JIRA)" <ji...@apache.org> on 2014/05/23 21:42:02 UTC
[jira] [Updated] (SAMZA-124) Provide AM based antiaffinity to avoid
clumping of containers
[ https://issues.apache.org/jira/browse/SAMZA-124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Riccomini updated SAMZA-124:
----------------------------------
Fix Version/s: (was: 0.7.0)
> Provide AM based antiaffinity to avoid clumping of containers
> -------------------------------------------------------------
>
> Key: SAMZA-124
> URL: https://issues.apache.org/jira/browse/SAMZA-124
> Project: Samza
> Issue Type: Improvement
> Components: container
> Affects Versions: 0.6.0
> Reporter: Jakob Homan
> Assignee: Chris Riccomini
>
> We're seeing YARN scheduling lots of containers on the same box causing NIC saturation and cluster degradation. Pending SAMZA-74 (and its dependency, YARN-1042), it would be good to have some basic anti-affinity support at the AM level. We can be selective about what nodes we request and accept from the RM, hopefully spreading the containers around the cluster more evenly.
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