We have to update collectd in RHEL8 to the latest version that include all recent bug fixes. Foe example after FFU from 16.2 RHEL8 to 17.1 RHEL9 I see different container images in upgraded overcloud nodes vs clean deployed overcloud nodes. For example if I deploy clean OSP17.1 RHEL9 collectd version that I have inside collectd container is collectd-5.12.0-10 but on upgraded nodes the version is collectd-5.12.0-2 which is lower. We have to have same collectd version for OSP17.1 on RHEL8 and RHEL9
collectd version on RHEL8 after upgrade to 17.1 is collectd-5.12.0-10.el8ost
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Release of components for Red Hat OpenStack Platform 17.1 (Wallaby)), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2023:4577