Look at the available disk for cinder. If you're not using RBD or another vendor driver, then you'll need at least as much free space as the size of the VM. When you run out of space, the services tend to stop and block.
Also, if you set the limits but haven't rebooted, now is a good opportunity. I think the system level governor will need it. Are you still seeing the connections error? Any error in the logs is where you should focus first. Cheers, -E On Thu, Aug 17, 2017 at 7:47 AM Anwar Durrani <durrani.an...@gmail.com> wrote: > Thanks Evan/Arne, i have done that part but for some instance i have > notices > > unable to create snapshot of instance. It stuck at 50% for a very long > time. > > > Thanks > > On Thu, Aug 17, 2017 at 4:28 PM, Evan Bollig PhD <boll0...@umn.edu> wrote: > >> Correct, but even increasing the max_connections in your MySQL >> configuration may not be enough. Look at your system ulimit, or in or >> around /etc/sysconfig/limits.conf where a system-level governor is defined >> for max_connections (on centos). >> >> Cheers, >> -E >> >> >> On Thu, Aug 17, 2017 at 3:32 AM Arne Wiebalck <arne.wieba...@cern.ch> >> wrote: >> >>> Anwar, >>> >>> “Too many connections” sounds like you hit a limit on the database. >>> You’ll need to >>> check if the connection limit is too low or if there are connections >>> which are stuck. >>> >>> HTH, >>> Arne >>> >>> >>> On 17 Aug 2017, at 09:07, Anwar Durrani <durrani.an...@gmail.com> wrote: >>> >>> Hi All, >>> >>> I have openstack Kilo installed, presently i am not able to snapshot of >>> any instance, when i have checked logs on server it says following : >>> >>> cinder OperationalError: (OperationalError) (1040, 'Too many >>> connections') None None >>> >>> If you have any clue for the same ? >>> >>> >>> Thanks >>> >>> -- >>> Thanks & regards, >>> Anwar M. Durrani >>> +91-9923205011 <099232%2005011> >>> <http://in.linkedin.com/pub/anwar-durrani/20/b55/60b> >>> >>> >>> _______________________________________________ >>> OpenStack-operators mailing list >>> OpenStack-operators@lists.openstack.org >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >>> >>> >>> -- >>> Arne Wiebalck >>> CERN IT >>> >>> _______________________________________________ >>> OpenStack-operators mailing list >>> OpenStack-operators@lists.openstack.org >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >>> >> -- >> -- >> Evan F. Bollig, PhD >> Scientific Computing Consultant, Application Developer | Scientific >> Computing Solutions (SCS) >> Minnesota Supercomputing Institute | msi.umn.edu >> University of Minnesota | umn.edu >> boll0...@umn.edu | 612-624-1447 <0612%20624%201447> | Walter Lib Rm 556 >> > > > > -- > Thanks & regards, > Anwar M. Durrani > +91-9923205011 > <http://in.linkedin.com/pub/anwar-durrani/20/b55/60b> > > > -- -- Evan F. Bollig, PhD Scientific Computing Consultant, Application Developer | Scientific Computing Solutions (SCS) Minnesota Supercomputing Institute | msi.umn.edu University of Minnesota | umn.edu boll0...@umn.edu | 612-624-1447 | Walter Lib Rm 556
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