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