On engine side, host is not responding.
2018-07-29 19:52:39,001+0300 WARN (vdsm.Scheduler) [Executor] Worker blocked: <Worker name=periodic/1 running <Task <Operation action=<vdsm.virt.sampling.HostMonitor object at 0x7f8c14152ad
0> at 0x7f8c14152b10> timeout=15, duration=345 at 0x7f8c140f9190> task#=0 at 0x7f8c1418d950>, traceback:
File: "/usr/lib64/python2.7/threading.py", line 785, in __bootstrap
self.__bootstrap_inner()
File: "/usr/lib64/python2.7/threading.py", line 812, in __bootstrap_inner
self.run()
File: "/usr/lib64/python2.7/threading.py", line 765, in run
self.__target(*self.__args, **self.__kwargs)
File: "/usr/lib/python2.7/site-packages/vdsm/common/concurrent.py", line 194, in run
ret = func(*args, **kwargs)
File: "/usr/lib/python2.7/site-packages/vdsm/executor.py", line 301, in _run
self._execute_task()
File: "/usr/lib/python2.7/site-packages/vdsm/executor.py", line 315, in _execute_task
task()
File: "/usr/lib/python2.7/site-packages/vdsm/executor.py", line 391, in __call__
self._callable()
File: "/usr/lib/python2.7/site-packages/vdsm/virt/periodic.py", line 220, in __call__
self._func()
File: "/usr/lib/python2.7/site-packages/vdsm/virt/sampling.py", line 576, in __call__
sample = HostSample(self._pid)
File: "/usr/lib/python2.7/site-packages/vdsm/virt/sampling.py", line 240, in __init__
self.interfaces = _get_interfaces_and_samples()
File: "/usr/lib/python2.7/site-packages/vdsm/virt/sampling.py", line 200, in _get_interfaces_and_samples
for link in ipwrapper.getLinks():
File: "/usr/lib/python2.7/site-packages/vdsm/network/ipwrapper.py", line 267, in getLinks
in six.viewitems(dpdk.get_dpdk_devices()))
File: "/usr/lib/python2.7/site-packages/vdsm/network/link/dpdk.py", line 44, in get_dpdk_devices
dpdk_devices = _get_dpdk_devices()
File: "/usr/lib/python2.7/site-packages/vdsm/common/cache.py", line 41, in __call__
value = self.func(*args)
File: "/usr/lib/python2.7/site-packages/vdsm/network/link/dpdk.py", line 111, in _get_dpdk_devices
devices = _lshw_command()
File: "/usr/lib/python2.7/site-packages/vdsm/network/link/dpdk.py", line 123, in _lshw_command
rc, out, err = cmd.exec_sync(['lshw', '-json'] + filterout_cmd)
File: "/usr/lib/python2.7/site-packages/vdsm/network/cmd.py", line 38, in exec_sync
retcode, out, err = exec_sync_bytes(cmds)
File: "/usr/lib/python2.7/site-packages/vdsm/common/cmdutils.py", line 156, in exec_cmd
out, err = p.communicate()
File: "/usr/lib64/python2.7/site-packages/subprocess32.py", line 924, in communicate
stdout, stderr = self._communicate(input, endtime, timeout)