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Cassandra state detected DOWN


While upgrading Contrail from 2.0 to 2.20 i’ve stuck with error.

Following the trail with contrail-status

  1. “contrail-status” is JUST python script located in /usr/bin/contrail-status

  2. It asks supervisord about services

  1. Then it checks URL for every service
  1. Parses ProcessStatus

Why contrail-database-nodemgr gives “Non-Functional”???

I’ve found that “Cassandra state detected DOWN” is “FAIL_STATUS_SERVER_PORT” error type.  Contrail getting this error HERE in code. So command below fails for some reason.

Cassandra listens ONLY ON management IP (not


We need to add following into “/etc/contrail/contrail-database-nodemgr.conf”

Restart nodemgr