Event ID 29104 on SCOM RMS cluster

First of all, apologies for not been able to blog for over a month. I changed jobs. I started my new job 4 weeks ago, with all the things going on, I couldn’t find time to sit down and write blog articles. I am now working in a large “System Center Shop” which consists of SCCM, SCOM, SCVMM, Opalis, SCDPM and Hyper-V that spread over Australia national wide. so hopefully, my future blogs will have posts related to other System Center products as I get my hands on these products, not just SCCM and SCOM.

Anyways, in the last couple of days, I noticed on the 2-Node RMS cluster at work, when RMS is running on Node B, Event ID 29104 is logged in Operations Manager event log:

“OpsMgr Config Service failed to send the dirty state notifications to the dirty OpsMgr Health Services. This may be happening because the Root OpsMgr Health Service is not running.”

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This event was only generated when RMS was running on Node B, also, when Node B was the active node, RMS health state was greyed out in SCOM console. If I fail over RMS to Node A, everything is fine.

After spent some time troubleshooting the issue, I have found there are some registry keys mismatch between 2 nodes, they are under HKLM\SOFTWARE\Microsoft\Microsoft Operations Manager\3.0\Server Management Groups\<Management Group Name>\

On node B, “IsRootHealthService” is set to 0, Node A is set to “1”

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Also on node B, there is a set of sub keys “Parent Health Services”. this set of keys should not exist in RMS:

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So, to fix the issue, I firstly failed over RMS to node A, then changed “IsRootHealthService” on node B to “1” and deleted “Parent Health Services” key from node B. After that, I failed RMS back to node B, the 29104 events were no longer been logged and the RMS health state is not grey anymore.

Again, I did not consult Microsoft on this one, please take a back up of the registry keys before you change it and I am not responsible for any damages it may cause.

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