You cannot modify /proc/3070/limits without root permissions.
Try: ### sudo su - echo -n "Max open files=8192:unlimited" > /proc/3070/limits ### El 2016-12-19 19:21, John Petrini escribió: > Hi Prashant, > > On second thought that trick might only work on CentOS. You might have > success using prlimit instead. > > ___ > > John Petrini > > NOC Systems Administrator // COREDIAL, LLC // coredial.com [1] // [2] [3] [4] > [5] > Hillcrest I, 751 Arbor Way, Suite 150, Blue Bell PA, 19422 > P: 215.297.4400 x232 // F: 215.297.4401 // E: jpetr...@coredial.com > > [6] > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. Any review, retransmission, dissemination or other use of, or > taking of any action in reliance upon, this information by persons or > entities other than the intended recipient is prohibited. If you received > this in error, please contact the sender and delete the material from any > computer. > > On Mon, Dec 19, 2016 at 1:13 PM, Prashant Shetty > <prashantshetty1...@gmail.com> wrote: > > Hi John, > > Echo option doesnt seems to work on below controller. > > stack@devstackvm:~$ cat /etc/lsb-release > DISTRIB_ID=Ubuntu > DISTRIB_RELEASE=14.04 > DISTRIB_CODENAME=trusty > DISTRIB_DESCRIPTION="Ubuntu 14.04.5 LTS" > stack@devstackvm:~$ > > stack@devstackvm:~$ ps aux | grep nova-api > stack 3070 1.1 0.1 271576 121092 pts/9 S+ Dec16 50:29 /usr/bin/python > /usr/local/bin/nova-api > stack 3079 0.3 0.8 1045308 881676 pts/9 S+ Dec16 14:32 /usr/bin/python > /usr/local/bin/nova-api > stack 3080 0.2 0.1 324808 161096 pts/9 S+ Dec16 9:25 /usr/bin/python > /usr/local/bin/nova-api > stack 3081 0.2 0.7 980172 816468 pts/9 S+ Dec16 10:37 /usr/bin/python > /usr/local/bin/nova-api > stack 3082 0.3 0.1 336824 173288 pts/9 S+ Dec16 16:11 /usr/bin/python > /usr/local/bin/nova-api > stack 3083 0.4 0.1 338788 175264 pts/9 S+ Dec16 19:05 /usr/bin/python > /usr/local/bin/nova-api > stack 3084 0.4 0.1 336616 172912 pts/9 S+ Dec16 17:41 /usr/bin/python > /usr/local/bin/nova-api > stack 3085 0.2 0.8 1054900 891272 pts/9 S+ Dec16 10:09 /usr/bin/python > /usr/local/bin/nova-api > stack 3086 0.2 0.1 325088 161228 pts/9 S+ Dec16 9:59 /usr/bin/python > /usr/local/bin/nova-api > stack 3097 0.2 0.1 308088 151828 pts/9 S+ Dec16 11:10 /usr/bin/python > /usr/local/bin/nova-api > stack 3098 0.2 0.1 308296 152360 pts/9 S+ Dec16 11:15 /usr/bin/python > /usr/local/bin/nova-api > stack 3099 0.2 0.1 308708 152544 pts/9 S+ Dec16 11:42 /usr/bin/python > /usr/local/bin/nova-api > stack 3100 0.2 0.1 309588 153624 pts/9 S+ Dec16 11:06 /usr/bin/python > /usr/local/bin/nova-api > stack 3101 0.2 0.1 308372 152396 pts/9 S+ Dec16 11:14 /usr/bin/python > /usr/local/bin/nova-api > stack 3102 0.2 0.1 308084 152052 pts/9 S+ Dec16 11:10 /usr/bin/python > /usr/local/bin/nova-api > stack 3103 0.2 0.1 308380 152416 pts/9 S+ Dec16 11:09 /usr/bin/python > /usr/local/bin/nova-api > stack 3104 0.2 0.1 307652 151560 pts/9 S+ Dec16 10:29 /usr/bin/python > /usr/local/bin/nova-api > stack 8087 0.0 0.0 11752 2044 pts/21 S+ 10:07 0:00 grep --color=auto nova-api > stack@devstackvm:~$ > > stack@devstackvm:~$ cat /proc/3070/limits | grep "Max open files" > Max open files 1024 4096 files > stack@devstackvm:~$ > stack@devstackvm:~$ echo -n "Max open files=8192:unlimited" > > /proc/3070/limits > -bash: /proc/3070/limits: Permission denied > stack@devstackvm:~$ sudo echo -n "Max open files=8192:unlimited" > > /proc/3070/limits > -bash: /proc/3070/limits: Permission denied > stack@devstackvm:~$ > > root@devstackvm:/home/stack# echo -n "Max open files=8192:unlimited" > > /proc/3070/limits > bash: echo: write error: Invalid argument > root@devstackvm:/home/stack# > > On Mon, Dec 19, 2016 at 11:27 PM, John Petrini <jpetr...@coredial.com> wrote: > > 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 > [7] > Post to : openstack@lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > [7] > > -- > Arne Wiebalck > CERN IT _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack [7] Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack [7] _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack [7] Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack [7] Links: ------ [1] http://coredial.com/ [2] https://twitter.com/coredial [3] http://www.linkedin.com/company/99631 [4] https://plus.google.com/104062177220750809525/posts [5] http://success.coredial.com/blog [6] http://cta-redirect.hubspot.com/cta/redirect/210539/4c492538-6e4b-445e-9480-bef676787085 [7] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
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