future created FLINK-24401: ------------------------------ Summary: TM cannot exit after Metaspace OOM Key: FLINK-24401 URL: https://issues.apache.org/jira/browse/FLINK-24401 Project: Flink Issue Type: Bug Components: Runtime / Task Affects Versions: 1.13.0, 1.12.0 Reporter: future Fix For: 1.13.3, 1.14.1 Attachments: image-2021-09-29-11-45-48-098.png, image-2021-09-29-11-47-47-157.png
Hi masters, from the code and log, we can see that OOM will terminateJVM directly, but Metaspace OutOfMemoryError will graceful shutdown. The code comment mentions: {{_it does not usually require more class loading to fail again with the Metaspace OutOfMemoryError_.}}. But we encountered: after Metaspace OutOfMemoryError, {{_java.lang.NoClassDefFoundError: Could not initialize class org.apache.flink.runtime.taskexecutor.TaskManagerRunner$Result_.}}, makes Tm unable to exit, keeps trying again, keeps NoClassDefFoundError, keeps class loading failure, until kill tm by manually. I want to add a catch Throwable in the onFatalError method, and directly terminateJVM() in the catch. Is there any problem with this strategy? [code link |https://github.com/apache/flink/blob/4fe9f525a92319acc1e3434bebed601306f7a16f/flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskManagerRunner.java#L312] picture: !image-2021-09-29-11-45-48-098.png|width=663,height=343! !image-2021-09-29-11-47-47-157.png! -- This message was sent by Atlassian Jira (v8.3.4#803005)