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From "Manikandan R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3839) Quit throwing NMNotYetReadyException
Date Thu, 04 May 2017 13:47:04 GMT

    [ https://issues.apache.org/jira/browse/YARN-3839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15996745#comment-15996745

Manikandan R commented on YARN-3839:

{quote}I don't believe we should remove the NMNotYetReadyException from the ServeryProxy exception
map. Otherwise if a newer client talks to an older server that is still throwing the old exception
then the new client will not handle it gracefully.{quote}
Ok. Taken care. Attached new patch.
{quote}Please look a bit deeper into the test failures, there may be races that are not going
well once the check for the blocked boolean was removed and now we're proceeding quicker than
we would have before.{quote}
I spent some time on these failures, but don't see any issues. For example, {code}java.lang.Exception:
test timed out after 120000 milliseconds{code} failures in TestContainerManagerSecurity.testContainerManager:158->testNMTokens:253->testStartContainer:478->startContainer:557
is reproducible even in my local working copy and can be avoided by increasing timeout value
for specific test case. However, am getting NPE in line containing {code}nmContet.getContainers().get(containerId){code}
in {code}waitForContainerToFinishOnNM(){code} method in TestContainerManagerSecurity.java,
but don't think it is related to this patch. Please let me know your thoughts.

> Quit throwing NMNotYetReadyException
> ------------------------------------
>                 Key: YARN-3839
>                 URL: https://issues.apache.org/jira/browse/YARN-3839
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Karthik Kambatla
>            Assignee: Manikandan R
>         Attachments: YARN-3839.001.patch, YARN-3839.002.patch, YARN-3839.003.patch, YARN-3839.004.patch,
YARN-3839.005.patch, YARN-3839.006.patch, YARN-3839.007.patch
> Quit throwing NMNotYetReadyException when NM has not yet registered with the RM.

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