[jira] [Commented] (STORM-3686) o.a.s.t.s.AbstractNonblockingServer$FrameBuffer pool-14-thread-10 [ERROR] Unexpected throwable while invoking! java.lang.NullPointerException: null

["Bipin Prasad (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/STORM-3686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17525047#comment-17525047 ] 

Bipin Prasad commented on STORM-3686:
-------------------------------------

[~sauravsuman689], The logs are not complete - but it appears that the leader nimbus cannot be determined. Please restart nimbus.

[~ijihang] please attach your logs - may be the same issue, but could be a different one.

> o.a.s.t.s.AbstractNonblockingServer$FrameBuffer pool-14-thread-10 [ERROR] Unexpected throwable while invoking! java.lang.NullPointerException: null
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: STORM-3686
>                 URL: https://issues.apache.org/jira/browse/STORM-3686
>             Project: Apache Storm
>          Issue Type: Bug
>    Affects Versions: 1.2.2
>         Environment: PROD
>            Reporter: Saurav Suman
>            Priority: Blocker
>         Attachments: Storm_ui.log, storm_nimbus.log
>
>
> Hi Team,
>  
> Very often I am getting below error in storm nimbus and after that the storm UI loads only with some content.
>  
> 2020-08-05 02:45:01.802 o.a.s.t.s.AbstractNonblockingServer$FrameBuffer pool-14-thread-10 [ERROR] Unexpected throwable while invoking!
>  java.lang.NullPointerException: null
>  
> Attached the storm nimbus and ui error from their logs.
>  
> Please advise.



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