memcache package update breaks memcache starting due to rlimits issue

[Alex Schultz]

RDO recently promoted a new memcache package which may not start if the number of max connections is greater than 1024. The default puppet memcache module sets the default max_connections to 8192 resulting in a failure.

Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: [/usr/lib/systemd/system/memcached.service:42] Unknown lvalue 'MemoryDenyWriteExecute' in section 'Service'
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Started memcached daemon.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Starting memcached daemon...
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 kernel: SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 memcached[4893]: failed to set rlimit for open files. Try starting as root or requesting smaller maxconns value.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: memcached.service: main process exited, code=exited, status=71/n/a
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Unit memcached.service entered failed state.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: memcached.service failed.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Reloading.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Configuration file /usr/lib/systemd/system/auditd.service is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: [/usr/lib/systemd/system/memcached.service:42] Unknown lvalue 'MemoryDenyWriteExecute' in section 'Service'
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Reloading.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: Configuration file /usr/lib/systemd/system/auditd.service is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.
Nov 02 15:59:11 centos-7-internap-mtl01-5158826 systemd[1]: [/usr/lib/systemd/system/memcached.service:42] Unknown lvalue 'MemoryDenyWriteExecute' in section 'Service'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/392901

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/392909

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/392914

[OpenStack Infra (hudson-openstack)]

Change abandoned by Alex Schultz (<email address hidden>) on branch: master
Review: https://review.openstack.org/392901
Reason: Getting fixed in packaging as this needs a systemd unit file fix

[OpenStack Infra (hudson-openstack)]

Change abandoned by Alex Schultz (<email address hidden>) on branch: master
Review: https://review.openstack.org/392914
Reason: Fix will be coming in packaging because the systemd file needs an update which we don't manage via puppet

[OpenStack Infra (hudson-openstack)]

Change abandoned by Emilien Macchi (<email address hidden>) on branch: master
Review: https://review.openstack.org/392909

[Alex Schultz (alex-schultz)]

Fix was included in memcached-1.4.33-2 https://cbs.centos.org/koji/buildinfo?buildID=13784