Hello! After upgrade from 3.4.4. to 3.5.0 I can see n all my 3 nodes PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND nod1 SPM running 0 VM 753 root 15 -5 17.208g 7.737g 10832 S 0.0 49.4 1:28.46 supervdsmServer nod2 running 3 VM 641 root 15 -5 17.573g 7.888g 10768 S 0.0 33.5 1:17.09 supervdsmServer nod3 running 2 VM 6391 root 15 -5 19.072g 8.646g 10844 S 9.3 44.1 38:17.05 supervdsmServer So Supervdsm server ocupy around 33-49% of memory alone! Also I've got *systemctl status supervdsmd* supervdsmd.service - "Auxiliary vdsm service for running helper functions as root" Loaded: loaded (/usr/lib/systemd/system/supervdsmd.service; static) Active: active (running) since Tue 2014-10-21 11:32:40 EEST; 23h ago Main PID: 753 (supervdsmServer) CGroup: name=systemd:/system/supervdsmd.service ââ753 /usr/bin/python /usr/share/vdsm/supervdsmServer --sockfile /var/run/vdsm/svdsm.sock Oct 21 11:39:51 nod1 daemonAdapter[753]: Process Process-4: Oct 21 11:39:51 nod1 daemonAdapter[753]: Traceback (most recent call last): Oct 21 11:39:51 nod1 daemonAdapter[753]: File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap Oct 21 11:39:51 nod1 daemonAdapter[753]: self.run() Oct 21 11:39:51 nod1 daemonAdapter[753]: File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run Oct 21 11:39:51 nod1 daemonAdapter[753]: self._target(*self._args, **self._kwargs) Oct 21 11:39:51 nod1 daemonAdapter[753]: File "/usr/share/vdsm/supervdsmServer", line 242, in child Oct 21 11:39:51 nod1 daemonAdapter[753]: pipe.recv() Oct 21 11:39:51 nod1 daemonAdapter[753]: IOError: [Errno 4] Interrupted system call Any ideeas, hints?