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https://issues.apache.org/jira/browse/PHOENIX-4113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Samarth Jain updated PHOENIX-4113:
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Attachment: (was: PHOENIX-4113_4.x-HBase-0.98.patch)
> Killing forked JVM may cause resources to be not released
> ---------------------------------------------------------
>
> Key: PHOENIX-4113
> URL: https://issues.apache.org/jira/browse/PHOENIX-4113
> Project: Phoenix
> Issue Type: Bug
> Reporter: Samarth Jain
> Assignee: Samarth Jain
>
> We have a <shutdown>kill</shutdown> configured in pom which behind the scenes
> calls
> {code}
> java.lang.Runtime.halt(1)
> {code}
> We also have a shutdown hook which is calling halt on the JVM.
> {code}
> private static String checkClusterInitialized(ReadOnlyProps serverProps)
> throws Exception {
> if (!clusterInitialized) {
> url = setUpTestCluster(config, serverProps);
> clusterInitialized = true;
> Runtime.getRuntime().addShutdownHook(new Thread() {
> @Override
> public void run() {
> logger.info("SHUTDOWN: halting JVM now");
> Runtime.getRuntime().halt(0);
> }
> });
> }
> return url;
> }
> {code}
> This causes JVM to not execute all shutdown hooks which in turn would cause
> the JVM process to not release all the system resources (network ports, file
> handles, etc) it was using. If OS is not able to clean up these orphaned
> resources soon enough, it could cause subsequent new JVM processes to run
> into resource issues.
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