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https://issues.apache.org/jira/browse/SUREFIRE-1302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045455#comment-16045455
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Tibor Digana commented on SUREFIRE-1302:
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[~elecharny]
[~opeyrusse]
[~xeagle]
[~michael-o]
I have pushed a branch.
https://git-wip-us.apache.org/repos/asf?p=maven-surefire.git;a=shortlog;h=refs/heads/SUREFIRE-1302_2
Pls put your comments in the code if you want to change something.
It is only a prototype. The class {{PpdiChecker}} will recognize etime of PPID.
If it is longer or the same like uptime of current PID, the parent process is
still alive. This way the the fork JVM does not need to have any timeout like
PING. If the commands throw exception or another than Unix/Windows platform, we
fallback to the old mechanism.
I want to split version 2.20.1, release it on Friday and include this issue.
Other big issues like JDK 9 should go to 2.20.2.
> Surefire does not wait long enough for the forked VM and assumes it to be dead
> ------------------------------------------------------------------------------
>
> Key: SUREFIRE-1302
> URL: https://issues.apache.org/jira/browse/SUREFIRE-1302
> Project: Maven Surefire
> Issue Type: Request
> Components: Maven Surefire Plugin
> Affects Versions: 2.19.1
> Reporter: Yuriy Zaplavnov
> Assignee: Tibor Digana
> Fix For: 2.20.1
>
> Attachments: 2017-05-18T05-48-08_685-jvmRun1.dumpstream,
> surefire-gclog.log, surefire-logs,
> surefire-tests-terminated-master-aa9330316038f6b46316ce36ff40714ffc7cf299.zip,
> tests_log_01.txt, tests_log_02.txt
>
>
> This issue happens because surefire kills the forked container if it times
> out waiting for the 'ping'.
> In org.apache.maven.surefire.booter.ForkedBooter class there is hardcoded
> constant PING_TIMEOUT_IN_SECONDS = 20 which is used in the following method:
> {code}
> private static ScheduledFuture<?> listenToShutdownCommands( CommandReader
> reader )
> {
> reader.addShutdownListener( createExitHandler( reader ) );
> AtomicBoolean pingDone = new AtomicBoolean( true );
> reader.addNoopListener( createPingHandler( pingDone ) );
> return JVM_TERMINATOR.scheduleAtFixedRate( createPingJob( pingDone,
> reader ),
> 0,PING_TIMEOUT_IN_SECONDS,
> SECONDS );
> }
> {code}
> to create ScheduledFuture.
> In some of the cases the forked container might respond a bit later than it's
> expected and surefire kills it
> {code}
> private static Runnable createPingJob( final AtomicBoolean pingDone, final
> CommandReader reader )
> {
> return new Runnable()
> {
> public void run()
> {
> boolean hasPing = pingDone.getAndSet( false );
> if ( !hasPing )
> {
> exit( 1, KILL, reader, true );
> }
> }
> };
> }
> {code}
> As long as we need to terminate it anyway, It would be really helpful if the
> problem could be solved making the PING_TIMEOUT_IN_SECONDS configurable with
> the ability to specify the value from maven-surefire-plugin.
> It would help to configure this timeout based on needs and factors of the
> projects where surefire runs.
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