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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3477) TimelineClientImpl swallows exceptions
Date Thu, 23 Apr 2015 14:15:39 GMT

     [ https://issues.apache.org/jira/browse/YARN-3477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Steve Loughran updated YARN-3477:
    Affects Version/s: 2.6.0
              Summary: TimelineClientImpl swallows exceptions  (was: TimelineClientImpl swallows
root cause of retry failures)

{{TimelineClientImpl}} also catches InterruptedExceptions and either
# converts to IOE & so making it potentially treated as a retry
# during a sleep(), it will catch and discard.

Issue #2 means it is impossible to to reliably interrupt a thread which is in the attempt-and-retry
process of trying to talk to a non-responsive ATS instance. While this does not impact normal
operations, it does make it hard to shut down threads talking to ATS

> TimelineClientImpl swallows exceptions
> --------------------------------------
>                 Key: YARN-3477
>                 URL: https://issues.apache.org/jira/browse/YARN-3477
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver
>    Affects Versions: 2.6.0, 2.7.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
> If timeline client fails more than the retry count, the original exception is not thrown.
Instead some runtime exception is raised saying "retries run out"
> # the failing exception should be rethrown, ideally via NetUtils.wrapException to include
URL of the failing endpoing
> # Otherwise, the raised RTE should (a) state that URL and (b) set the original fault
as the inner cause

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