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https://issues.apache.org/jira/browse/YARN-1443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832089#comment-13832089
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Zhijie Shen commented on YARN-1443:
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[~rgrandl], according to the description, the problem happens on MR AppMaster.
> blacklist is not propagated from AM to RM
> -----------------------------------------
>
> Key: YARN-1443
> URL: https://issues.apache.org/jira/browse/YARN-1443
> Project: Hadoop YARN
> Issue Type: Bug
> Components: api, client
> Reporter: Robert Grandl
> Priority: Minor
>
> I was trying to blacklist some nodes. I added a set of hosts as strings into
> blacklistAdditions list and propagated into
> RMContainerRequestor#makeRemoteRequest to the RM.
> However the blacklist is received empty at RM. I logged the path for
> blacklist in AM and I found that in
> ApplicationMasterProtocolPBClientImpl#allocate, this list is lost.
> I print
> request.getResourceBlacklistRequest().getBlacklistAdditions().toString() at
> the beginning of ApplicationMasterProtocolPBClientImpl#allocate and the
> blacklisted additions are there.
> After AllocateRequestProto requestProto is created based on this request, and
> I print again
> requestProto.getBlacklistRequest().getBlacklistAdditionsList().toString(),
> the blacklist additions is empty now.
> I looked even further and log what happened. At some point in yarn-api, I was
> lost with my logging as that code was regenerated every time I recompiled
> yarn-api.
> Thanks,
> robert
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