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https://issues.apache.org/jira/browse/YARN-2142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14037045#comment-14037045
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Vinod Kumar Vavilapalli commented on YARN-2142:
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bq. Because of critical computing environment ,we must test every node's TRUST
status in the cluster (We can get the TRUST status by the API of OAT sever),So
I add this feature into hadoop's schedule .
Can you add more details on what this really means? What is the definition of
"TRUST"? What is OAT server here? Will the kerberos based authentication
mechanism be not enough already? If not, why?
> Add one service to check the nodes' TRUST status
> -------------------------------------------------
>
> Key: YARN-2142
> URL: https://issues.apache.org/jira/browse/YARN-2142
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, resourcemanager, scheduler
> Affects Versions: 2.2.0
> Environment: OS:Ubuntu 13.04;
> JAVA:OpenJDK 7u51-2.4.4-0
> Reporter: anders
> Priority: Minor
> Labels: patch
> Fix For: 2.2.0
>
> Attachments: trust.patch
>
> Original Estimate: 1m
> Remaining Estimate: 1m
>
> Because of critical computing environment ,we must test every node's TRUST
> status in the cluster (We can get the TRUST status by the API of OAT
> sever),So I add this feature into hadoop's schedule .
> By the TRUST check service ,node can get the TRUST status of itself,
> then through the heartbeat ,send the TRUST status to resource manager for
> scheduling.
> In the scheduling step,if the node's TRUST status is 'false', it will be
> abandoned until it's TRUST status turn to 'true'.
> ***The logic of this feature is similar to node's healthcheckservice.
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