Stephan Ewen created FLINK-8856: ----------------------------------- Summary: Move all interrupt() calls to TaskCanceler Key: FLINK-8856 URL: https://issues.apache.org/jira/browse/FLINK-8856 Project: Flink Issue Type: Bug Components: TaskManager Reporter: Stephan Ewen Fix For: 1.5.0
We need this to work around the following JVM bug: https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8138622 To circumvent this problem, the {{TaskCancelerWatchDog}} must not call {{interrupt()}} at all, but only join on the executing thread (with timeout) and cause a hard exit once cancellation takes to long. A user affected by this problem reported this in FLINK-8834 Personal note: The Thread.join(...) method unfortunately is not 100% reliable as well, because it uses {{System.currentTimeMillis()}} rather than {{System.nanoTime()}}. Because of that, sleeps can take overly long when the clock is adjusted. I wonder why the JDK authors do not follow their own recommendations and use {{System.nanoTime()}} for all relative time measures... -- This message was sent by Atlassian JIRA (v7.6.3#76005)