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https://issues.apache.org/jira/browse/YARN-1018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13729890#comment-13729890
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Steve Loughran commented on YARN-1018:
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OK, but there's a risk that an empty array has come from some feature (like the
list of past containers), and that if the list is non-empty then that's because
there were no past containers.
If it is rejected if the node list is empty, then you may end up coding
{code}
boolean strict = nodes.length! =0
new AMRMClient.ContainerRequest(capability, nodes, null, 0, !strict);
{code}
> prereq check for AMRMClient.ContainerRequest relaxLocality flag wrong
> ---------------------------------------------------------------------
>
> Key: YARN-1018
> URL: https://issues.apache.org/jira/browse/YARN-1018
> Project: Hadoop YARN
> Issue Type: Bug
> Components: client
> Affects Versions: 2.1.0-beta
> Reporter: Steve Loughran
> Priority: Minor
>
> Trying to create a container request with no racks/nodes and no relaxed
> priority fails
> {code}
> new AMRMClient.ContainerRequest(capability, null, null, 0, false);
> {code}
> expected: a container request.
> actual: stack trace saying I can't relax node locality.
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