Fix issue with Gradle daemons hanging indefinitely on shutdown #44867
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Pinging @elastic/es-core-infra |
rjernst
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Jul 25, 2019
| clustersToWatch.removeAll(clustersToWatch); | ||
| } | ||
| public synchronized void unWatch(Collection<ElasticsearchCluster> cluster) { | ||
| clustersToWatch.removeAll(clustersToWatch); |
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Shouldn't this be clustersToWatch.removeAll(cluster)? (note, the name cluster shoudl really be plural since it is a collection?
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Good catch. Looks like we were never actually registering this clusters to be watched.
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This PR fixes and issue folks were reporting where Gradle daemons would be hung, such that the processes were still running but commands like
gradle --stopdidn't report them as running. The issue was were were inadvertently registering a shutdown hook that never completes. This caused the daemon on shutdown to unregister itself from the daemon registry (so it would never be reused) but the JVM would never actually exit.