Description of problem: For some currently unknown situation, collector failed to init() due to non-existent /proc/<vm_pid>/stat file: 2014-07-02 18:42:15,775 - mom.Collector - ERROR - Cannot open /proc/53049/stat: No such file or directory This error is making "HostMonitor" end and mom stop: 2014-07-02 18:42:16,178 - mom - ERROR - Thread 'GuestManager' has exited 2014-07-02 18:42:16,204 - mom.HostMonitor - INFO - Host Monitor ending The condition leading mom to try to access the stat of a non-existent pid is the subject of another ticket. Version-Release number of selected component (if applicable): vdsm-4.13.2-0.17.el6ev.x86_64 Actual results: Host Monitor ending and mom stopped. No KSM/Balloon control until vdsmd service restart. Expected results: MOM thread to survive or restart after the error accessing the stat file.
Can you provide any verification steps on how to reproduce this?
verified manually by throwing previously unsupported exception in the Monitor.collect method. This issue seems to be not reproducible in the latest versions vt13+ moving to VERIFIED
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2015-0186.html