Bob created YARN-4508:
-------------------------
Summary: The mount_cgroup method in container-executor.c should
enhance mount check when mount the request cgroup controller.
Key: YARN-4508
URL: https://issues.apache.org/jira/browse/YARN-4508
Project: Hadoop YARN
Issue Type: Bug
Components: yarn
Affects Versions: 2.7.1, 2.6.1
Reporter: Bob
Priority: Minor
In one scenarios , could result in mount_cgroup return success, but actually
the request cgroup controller mount failed.
Below code should enhance the condition check:
{code}
} else {
fprintf(LOGFILE, "Failed to mount cgroup controller %s at %s - %s\n",
controller, mount_path, strerror(errno));
// if controller is already mounted, don't stop trying to mount others
if (errno != EBUSY) {
result = -1;
}
}
{code}
In below scenarios can reproduce the issue:
1.Start NM, it will mount cgroups normally
2.Manually unmount the cgroups used by NM
3.Restart NM, NM can start successfully , but container cant be started due to
cgroups did not mounted successfully.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
