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 > >
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