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https://issues.apache.org/jira/browse/ARTEMIS-1541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16292168#comment-16292168
 ] 

ASF GitHub Bot commented on ARTEMIS-1541:
-----------------------------------------

Github user franz1981 commented on the issue:

    https://github.com/apache/activemq-artemis/pull/1691
  
    @mtaylor I've performed the failover tests on other DBMS and it is working 
as expected, but disabling the `ThreadLeakCheckRule` due to a "known" leak on 
the Oracle thin driver - the uninterruptible/unstoppable/unbreakable 
`oracle.jdbc.driver.BlockSource.ThreadedCachingBlockSource.BlockReleaser` 
thread:
    ```
    public void run() {
                    while(true) {
                        try {
                            
BlockSource.ThreadedCachingBlockSource.BlockReleaser var1 = SOLE_INSTANCE;
                            synchronized(SOLE_INSTANCE) {
                                SOLE_INSTANCE.wait(300000L);
                            }
    
                            
BlockSource.ThreadedCachingBlockSource.releaseFromAllSources();
                        } catch (Throwable var4) {
                            ;
                        }
                    }
                }
    ```



> Make the JDBC Node Manager more resilient on failures
> -----------------------------------------------------
>
>                 Key: ARTEMIS-1541
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1541
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>          Components: Broker
>            Reporter: Francesco Nigro
>            Assignee: Francesco Nigro
>
> The JDBC Node Manager isn't showing (at any level) errors on setup and hasn't 
> any policy to fail or recover while executing certain critical operations.



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