Modify default memcached MAXCONN parameter when deploying the Overcloud

Solution In Progress - Updated -


  • We encountered some issues regarding the number of maximum openned connection in the memcached service/container.

  • To solve that issue, we modified the /var/lib/config-data/puppet-generated/memcached/etc/sysconfig/memcached file on the controller nodes :

MAXCONN = 8192  ---> 20480

and the restart the container:

sudo podman restart memcached
  • We think it will better to be able to modify the MAXCONN parameter inside the Overcloud deployment templates than modifying memcached configuration file ourselves, but we can't find any parameter.

  • After some times, we can't connect to Horizon dashboard, and we have an authentication error when we use the openstack commands.


  • Red Hat OpenStack Platform 16.1 (RHOSP)

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