Hi Preshant, You can change the open file limit of the running process by echoing the value to it. For example...
echo -n "Max open files=8192:unlimited" > /proc/<PID>/limits ___ John Petrini On Mon, Dec 19, 2016 at 12:21 PM, Prashant Shetty < prashantshetty1...@gmail.com> wrote: > Hi Arne, > Thanks for your reply. Currently all these services are running on ubuntu > controller under screen. > Do we have any option to set the file limit option for n-api service in > this case?. I am not using systemd in my setup to run these services. > > Thanks, > Prashant > > On Mon, Dec 19, 2016 at 10:19 PM, Arne Wiebalck <arne.wieba...@cern.ch> > wrote: > >> Prashant, >> >> If this is for systemd, how about changing the nova-api unit file? >> >> Something like >> >> —> >> [Service] >> ... >> LimitNOFILE=65536 >> <— >> >> should do it. >> >> Cheers, >> Arne >> >> >> >> On 19 Dec 2016, at 17:23, Prashant Shetty <prashantshetty1...@gmail.com> >> wrote: >> >> Team, >> >> I have scale setup and metadata requests are seems to fail from instance. >> Main reason for failure is "Max open files" limit(1024) set on nova-api >> service. >> Though on controller we have set max open file limit of 65k(limit.conf), >> nova-api always comes up with 1024 limit causing failure. >> >> Could someone let me know how can we change the max open files limit of >> nova-api service? >> >> Setup Details: >> >> · Single controller >> · 500 KVM computes >> · Devstack branch: stable/newton >> · We have native metadata and dhcp running on platform >> · 3750 instances >> >> >> stack@controller:/opt/stack/logs$ ps aux | grep nova-api >> stack 14998 2.2 0.3 272104 121648 pts/8 S+ 09:53 0:14 /usr/bin/python >> /usr/local/bin/nova-api >> stack@controller:/opt/stack/logs$ >> stack@controller:/opt/stack/logs$ >> stack@controller:/opt/stack/logs$ cat /proc/14998/limits >> Limit Soft Limit Hard Limit Units >> Max cpu time unlimited unlimited seconds >> Max file size unlimited unlimited bytes >> Max data size unlimited unlimited bytes >> Max stack size 8388608 unlimited bytes >> Max core file size unlimited unlimited bytes >> Max resident set unlimited unlimited bytes >> Max processes 128611 128611 processes >> Max open files 1024 4096 files >> Max locked memory 65536 65536 bytes >> Max address space unlimited unlimited bytes >> Max file locks unlimited unlimited locks >> Max pending signals 128611 128611 signals >> Max msgqueue size 819200 819200 bytes >> Max nice priority 0 0 >> Max realtime priority 0 0 >> Max realtime timeout unlimited unlimited us >> stack@controller:/opt/stack/logs$ >> >> n-api: >> >> 2016-11-08 18:44:26.168 30069 INFO nova.metadata.wsgi.server >> [req-fb4d729b-a1cd-4df1-aaf8-3f854a739cce - -] (30069) wsgi exited, >> is_accepting=True >> Traceback (most recent call last): >> File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", >> line 457, in fire_timers >> timer() >> File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/timer.py", >> line 58, in __call__ >> cb(*args, **kw) >> File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line >> 168, in _do_send >> waiter.switch(result) >> File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", >> line 214, in main >> result = function(*args, **kwargs) >> File "/opt/stack/nova/nova/utils.py", line 1066, in context_wrapper >> return func(*args, **kwargs) >> File "/usr/local/lib/python2.7/dist-packages/eventlet/wsgi.py", line >> 865, in server >> client_socket = sock.accept() >> File "/usr/local/lib/python2.7/dist-packages/eventlet/greenio/base.py", >> line 214, in accept >> res = socket_accept(fd) >> File "/usr/local/lib/python2.7/dist-packages/eventlet/greenio/base.py", >> line 56, in socket_accept >> return descriptor.accept() >> File "/usr/lib/python2.7/socket.py", line 206, in accept >> sock, addr = self._sock.accept() >> error: [Errno 24] Too many open files >> >> Thanks, >> Prashant >> >> _______________________________________________ >> Mailing list: http://lists.openstack.org/cgi >> -bin/mailman/listinfo/openstack >> Post to : openstack@lists.openstack.org >> Unsubscribe : http://lists.openstack.org/cgi >> -bin/mailman/listinfo/openstack >> >> >> -- >> Arne Wiebalck >> CERN IT >> >> > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/ > openstack > Post to : openstack@lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/ > openstack > >
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