[jbossts-issues] [JBoss JIRA] (JBTM-2786) MySQL JDBCStore occasionally gets deadlock exception

[Tom Jenkinson (JIRA)]

     [ https://issues.jboss.org/browse/JBTM-2786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tom Jenkinson updated JBTM-2786:
--------------------------------
    Issue Type: Bug  (was: Task)


> MySQL JDBCStore occasionally gets deadlock exception
> ----------------------------------------------------
>
>                 Key: JBTM-2786
>                 URL: https://issues.jboss.org/browse/JBTM-2786
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>          Components: Transaction Core
>            Reporter: Tom Jenkinson
>            Assignee: Tom Jenkinson
>             Fix For: 5.next
>
>
> Occasionally in QA tests we see the MySQL CI job fail with messages about deadlocks. 
> From what I can see from http://stackoverflow.com/questions/2332768/how-to-avoid-mysql-deadlock-found-when-trying-to-get-lock-try-restarting-trans it can be because the where clauses are not ordered the same so a table lock can happen. Reordering the where clauses would hopefully fix this.



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