[jira] [Assigned] (SLING-2885) Race condition in VotingHandler.promote()

["Stefan Egli (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-2885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Egli reassigned SLING-2885:
----------------------------------

    Assignee: Stefan Egli
    
> Race condition in VotingHandler.promote()
> -----------------------------------------
>
>                 Key: SLING-2885
>                 URL: https://issues.apache.org/jira/browse/SLING-2885
>             Project: Sling
>          Issue Type: Bug
>          Components: Extensions
>    Affects Versions: Discovery Impl 1.0.0
>         Environment: Discovery Impl version: 0.1.0.R1484784
>            Reporter: Marcel Reutegger
>            Assignee: Stefan Egli
>            Priority: Minor
>         Attachments: error.log
>
>
> Sometimes on initial startup of Sling Discovery it happens that two threads try to promote the same winning vote at the same time. This leads to a failed commit in the repository. The system seems to be OK after the exception. There is an established view and the (single) cluster node is the leader.
> Please note, this is running on Jackrabbit Oak, but might also happen on Jackrabbit 2.x because the basic issue is two sessions trying to add the same child node.
> See attached log excerpt for more details.

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