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From "MENG DING (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4175) Example of use YARN-1197
Date Mon, 05 Oct 2015 21:05:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-4175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14944039#comment-14944039

MENG DING commented on YARN-4175:

I am using the example application to test the container increase/decrease function against
a 4 node cluster. Will collect and report all problems when the tests are completed.

Just a quick note in case someone also wants to do the test:
* The application master IPC server now listens on a fixed port 8686. If multiple app masters
are started on the same host with *-enable_ipc* option specified, there will be port conflicts,
but YARN should be able to start new app attempts and try to launch app master on a different
* If there are invalid container resource change request (e.g., target resource is smaller
than original resource for increase), the AMRMClient will throw exception (i.e. InvalidResourceRequestException)
at the allocate call, and current implementation of the distributed shell appmaster will exit,
causing the entire application to exit.

> Example of use YARN-1197
> ------------------------
>                 Key: YARN-4175
>                 URL: https://issues.apache.org/jira/browse/YARN-4175
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, nodemanager, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: MENG DING
>         Attachments: YARN-4175.1.patch
> Like YARN-2609, we need a example program to demonstrate how to use YARN-1197 from end-to-end.

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