Miklos Szegedi created YARN-7239:
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Summary: Possible launch/cleanup race condition in
ContainersLauncher
Key: YARN-7239
URL: https://issues.apache.org/jira/browse/YARN-7239
Project: Hadoop YARN
Issue Type: Bug
Reporter: Miklos Szegedi
ContainersLauncher.handle() submits the launch job and then adds the job into
the collection risking that the cleanup will miss it and return. This should be
in reversed order in all 3 instances:
{code}
containerLauncher.submit(launch);
running.put(containerId, launch);
{code}
The cleanup code the above code is racing with:
{code}
ContainerLaunch runningContainer = running.get(containerId);
if (runningContainer == null) {
// Container not launched. So nothing needs to be done.
LOG.info("Container " + containerId + " not running, nothing to
signal.");
return;
}
...
{code}
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