[ 
https://issues.apache.org/jira/browse/CASSANDRA-15170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16904092#comment-16904092
 ] 

Jon Meredith commented on CASSANDRA-15170:
------------------------------------------

Thanks for explaining the issue with the termination, I've gone through and 
fixed the shutdowns to match trunk and pushed commits.

> Reduce the time needed to release in-JVM dtest cluster resources after close
> ----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-15170
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15170
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Test/dtest
>            Reporter: Jon Meredith
>            Assignee: Jon Meredith
>            Priority: Normal
>
> There are a few issues that slow the in-JVM dtests from reclaiming metaspace 
> once the cluster is closed.
> IsolatedExecutor issues the shutdown on a SingleExecutorThreadPool, sometimes 
> this thread was still running 10s after the dtest cluster was closed.  
> Instead, switch to a ThreadPoolExecutor with a core pool size of 0 so that 
> the thread executing the class loader close executes sooner.
> If an OutboundTcpConnection is waiting to connect() and the endpoint is not 
> answering, it has to wait for a timeout before it exits. Instead it should 
> check the isShutdown flag and terminate early if shutdown has been requested.
> In 3.0 and above, HintsCatalog.load uses java.nio.Files.list outside of a 
> try-with-resources construct and leaks a file handle for the directory.  This 
> doesn't matter for normal usage, it leaks a file handle for each dtest 
> Instance created.
> On trunk, Netty global event executor threads are still running and delay GC 
> for the instance class loader.



--
This message was sent by Atlassian JIRA
(v7.6.14#76016)

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org

Reply via email to