theresa-m
commented
4 years ago So far I haven't been able to reproduce this issue.
Things I have tried:
- test program (java & system ooms) in Ubuntu-16 vm with arguments
-XX:+ExitOnOutOfMemoryError -Xdump:java:file=/STDOUT/ -XX:-HeapDumpOnOutOfMemoryError -Xdump:java:events=throw,filter=java/lang/OutOfMemoryError,file=/STDOUT/ - test program (java & system ooms) in a docker image with arguments
-XX:+ExitOnOutOfMemoryError -Xdump:java:file=/STDOUT/ -XX:-HeapDumpOnOutOfMemoryError -Xdump:java:events=throw,filter=java/lang/OutOfMemoryError,file=/STDOUT/ - verified that docker returns the same exit code as hotspot for each of these scenarios (exit code = 3) which should trigger kubernetes to restart on failure
Test program:
class Hello {
public static void main(String[] args) throws Throwable {
Thread t1 = new Thread(new Hello().new RunnableImpl());
t1.start();
/* program continues forever */
while(true) {
Thread.sleep(2000);
System.out.println("continue program forever");
}
}
private class RunnableImpl implements Runnable {
public void run()
{
System.out.println("run thread");
/* test 1: throw system oom */
//long[] mer = new long[Integer.MAX_VALUE];
/* test 2: throw java oom */
throw new OutOfMemoryError();
}
}
}
psoohoo-turbonomic
Herr-Sepp
pshipton
andrewcraik
mpirvu
Java -version output
OpenJ9 release 0.18
openjdk version "11.0.6" 2020-01-14 OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.6+10) Eclipse OpenJ9 VM AdoptOpenJDK (build openj9-0.18.0, JRE 11 Linux amd64-64-Bit Compressed References 20200116_433 (JIT enabled, AOT enabled) OpenJ9 - 6968c18d7 OMR - 7a1b0239a JCL - 104cab2452 based on jdk-11.0.6+10)
Edit: can be replicated on Java 8 as well
Summary of problem
Details from the OpenJ9 slack channel: