Yangze Guo created FLINK-16416: ---------------------------------- Summary: Shutdown the task manager gracefully in standalone mode Key: FLINK-16416 URL: https://issues.apache.org/jira/browse/FLINK-16416 Project: Flink Issue Type: Improvement Components: Command Line Client Reporter: Yangze Guo
Recently, I try to add a new {{GPUManager}} to the {{TaskExecutorServices}}. I register the "close", in which I write some cleanup logic, function to the {{TaskExecutorServices#shutDown}}. However, I found that the cleanup logic does not run as expected in standalone mode. After an investigation in the codebase, I found that the {{TaskExecutorServices#shutDown}} will be called only on a fatal error while we just kill the TM process in the {{flink-daemon.sh}}. However, the LOG shows that some services did clean up themselves by registering {{shutdownHook}}. If that is the right way, then we need to register a {{shutdownHook}} for {{TaskExecutorServices}} as well. If that is not, we may find another solution to shutdown TM gracefully. -- This message was sent by Atlassian Jira (v8.3.4#803005)