Cloned from launchpad blueprint https://blueprints.launchpad.net/ceilometer/+spec/notification-coordination. Description: Currently, the notification agent can function in active/active HA where each notification agent grabs notifications from the message queue in a FIFO type rotation (it checks for message(s), grabs message(s)). The issue that arises is that if we want to implement a pipeline to process events, we cannot guarantee what event each agent worker will get and because of that, we cannot enable transformers which aggregate/collate some relationship across similar events. This also fixes an existing bug where if multiple notification agents are enabled, the pipeline transformers may not work as expected because it will only act on the samples it sees on current worker. Specification URL (additional information): None
Verified according test plan.
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, 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-2015:1548