Symptom

Telemetry is unable to access AMQP, error messages can be seen in /var/log/telemetry-infra.log

Conditions

The following upgrade paths are affected by this issue: (11.x ->) 11.4.x -> 11.5.1 (-> 11.5.2) -> 11.5.3 Issue will be seen in 11.5.3

Workaround

There are 2 workarounds. User can apply either pre-upgrade workaround (e.g. if running 11.5.1) or the post-upgrade workaround (e.g. if upgrade is already done and user ran into this issue) There should be no need apply both. Pre-upgrade workaround: 1) rm /root/packaged-files/rpms/telemetry* Post-upgrade workaround: Standalone or HA Active(*) node: 1) systemctl stop telemetry-infra 2) rpm -qa | grep telemetry 3) use rpm -e to remove all telemetry packages shown in the output of previous command 4) cd /root/packaged-files/rpms 5) rpm -ihv telemetry-infra.rpm 6) remove other telemetry-infra files different from telemetry-infra.rpm 7) systemctl start telemetry-infra HA Standby(*) node: 1) rpm -qa | grep telemetry 2) use rpm -e to remove all telemetry packages shown in the output of previous command 3) cd /root/packaged-files/rpms 4) rpm -ihv telemetry-infra.rpm 5) remove other telemetry-infra files different from telemetry-infra.rpm (*) Current HA node role!

Further Problem Description