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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1157) ResourceManager UI has invalid tracking URL link for distributed shell application
Date Wed, 18 Sep 2013 00:55:52 GMT

    [ https://issues.apache.org/jira/browse/YARN-1157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13770258#comment-13770258
] 

Xuan Gong commented on YARN-1157:
---------------------------------

bq.all users of the trackingUrl, for e.g. ApplicationReport will have the same issue. So let's
make sure that once registration and finish-app is done, the url in RM's memory is always
"N/A" if not explicitly set by AM.

Adding this logic in both AMRegisteredTransition/AMUnregisteredTransition
{code}
      String url = registrationEvent.getTrackingurl();
      if (url == null || url.trim().isEmpty()) {
        appAttempt.origTrackingUrl = "N/A";
      } else {
        appAttempt.origTrackingUrl = url;
      }
{code}

bq.Let's document RegisterApplicationMasterRequest.getTrackingUrl() and setTrackingUrl() to
describe that empty, null, "N/A" strings are all valid besides a real URL.

Done

bq.Similarly FinishApplicationMasterRequest.

Done

Also added a new testcase, fixed the testcase failure
                
> ResourceManager UI has invalid tracking URL link for distributed shell application
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-1157
>                 URL: https://issues.apache.org/jira/browse/YARN-1157
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: Tassapol Athiapinya
>            Assignee: Xuan Gong
>             Fix For: 2.1.1-beta
>
>         Attachments: YARN-1157.1.patch
>
>
> Submit YARN distributed shell application. Goto ResourceManager Web UI. The application
definitely appears. In Tracking UI column, there will be history link. Click on that link.
Instead of showing application master web UI, HTTP error 500 would appear.

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