[ https://issues.apache.org/jira/browse/CASSANDRA-15170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16910709#comment-16910709 ]
Jon Meredith commented on CASSANDRA-15170: ------------------------------------------ Switched to the simpler/safer StreamingInboundHandler and clearly documented it's limitations. Also found a possible issue with close() causing the helper I/O thread to poll forever. [CircleCI run|https://circleci.com/workflow-run/e1440c87-8d12-479e-9119-8116a0a09152] > 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 (v8.3.2#803003) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org