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https://issues.apache.org/jira/browse/FLINK-8073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16404828#comment-16404828
]
ASF GitHub Bot commented on FLINK-8073:
---------------------------------------
Github user zentol commented on the issue:
https://github.com/apache/flink/pull/5718
This change appears to be focus mostly around Travis which i dislike a bit.
I'd rather add a custom `Timeout` that prints the thread-dump so we still
get nice behavior when running things locally/in the IDE.
```
@Rule
public final Timeout timeout = new MyTimeOut(10, TimeUnit.MILLISECONDS);
public static class MyTimeOut extends Timeout {
public MyTimeOut(long timeout, TimeUnit timeUnit) {
super(timeout, timeUnit);
}
@Override
public Statement apply(Statement base, Description description)
{
Statement fail = super.apply(base, description);
return new Statement() {
@Override
public void evaluate() throws Throwable {
System.out.println(crunchifyGenerateThreadDump());
fail.evaluate();
}
};
}
}
public static String crunchifyGenerateThreadDump() {
final StringBuilder dump = new StringBuilder();
final ThreadMXBean threadMXBean =
ManagementFactory.getThreadMXBean();
final ThreadInfo[] threadInfos =
threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), 100);
for (ThreadInfo threadInfo : threadInfos) {
dump.append('"');
dump.append(threadInfo.getThreadName());
dump.append("\" ");
final Thread.State state = threadInfo.getThreadState();
dump.append("\n java.lang.Thread.State: ");
dump.append(state);
final StackTraceElement[] stackTraceElements =
threadInfo.getStackTrace();
for (final StackTraceElement stackTraceElement :
stackTraceElements) {
dump.append("\n at ");
dump.append(stackTraceElement);
}
dump.append("\n\n");
}
return dump.toString();
}
```
> Test instability
> FlinkKafkaProducer011ITCase.testScaleDownBeforeFirstCheckpoint()
> ---------------------------------------------------------------------------------
>
> Key: FLINK-8073
> URL: https://issues.apache.org/jira/browse/FLINK-8073
> Project: Flink
> Issue Type: Bug
> Components: Kafka Connector, Tests
> Affects Versions: 1.4.0, 1.5.0
> Reporter: Kostas Kloudas
> Priority: Blocker
> Labels: test-stability
> Fix For: 1.5.0
>
>
> Travis log: https://travis-ci.org/kl0u/flink/jobs/301985988
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