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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1443) blacklist is not propagated from AM to RM
Date Mon, 25 Nov 2013 23:44:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-1443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832070#comment-13832070

Bikas Saha commented on YARN-1443:

What is RMContainerRequestor? AFAIK, this is an internal implementation class of the MR App
master and not part of the YARN API. Are you writing your own app or reporting a bug in the
MR App master. If its the latter, then this bug needs to move to the MAPREDUCE project.

> 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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