httpd opens too many connections and gets stuck after a while

Solution Verified - Updated -

Issue

  • Missing pool ceph metrics - httpd opens too many connections and gets stuck after a while in Red Hat OpenStack Platform.
  • httpd on controller-0 is not reachable - TCP sockets can be opened, but HTTP times out
  • Gnocchi is configured to use pool metrics.
  • Openstack-gnocchi 3.0.4 or 3.0.6

Environment

  • Red Hat OpenStack Platform 10.

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