[jira] [Commented] (KYLIN-1819) Exception swallowed when start DefaultScheduler fail

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-1819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16724049#comment-16724049 ] 

ASF GitHub Bot commented on KYLIN-1819:
---------------------------------------

kyotoYaho opened a new pull request #405: KYLIN-1819 Fix exception swallowed when start DefaultScheduler fail
URL: https://github.com/apache/kylin/pull/405
 
 
   

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> Exception swallowed when start DefaultScheduler fail
> ----------------------------------------------------
>
>                 Key: KYLIN-1819
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1819
>             Project: Kylin
>          Issue Type: Bug
>          Components: Job Engine
>    Affects Versions: v1.5.1, v1.5.2
>            Reporter: Ma Gang
>            Assignee: Ma Gang
>            Priority: Major
>             Fix For: v2.6.0
>
>         Attachments: fix_swallow_scheduler_start_exception.patch
>
>
> Start job scheduler need to acquire job lock from zookeeper, when lock acquire fail, it will throw an IllegalException, but because the scheduler is started in a new thread, the exception thrown by the thread will be ignored, and the server still started successfully, and no exceptions are logged. That make it hard for trouble shooting, should change to make server started fail when the scheduler started fail.



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