checking PI Notification Counters from PI SMT
and they all show as red cross although PI notification are seem running properly.
Issue has ben solved on case#740328. Running the PI Notifications Service with different account did the trick, the password for the current account had been changed.
Access to the PI Notifications perfmon counters is independent of whether the service is working properly. It is more likely that your PI Perfmon Interface doesn't have access to the relevant Windows PerfMon counters. Can you verify the following?
1. What is service account running the PI Perfmon Interface?
2. Is this service account part of the local Windows Group 'Performance Monitor Users' on the machine running PI Notifications?
For a full explanation, please see page 11 of the PI Performance Monitor Interface user guide, which you can download here: https://techsupport.osisoft.com/Downloads/File/06180736-9acb-44b5-b01f-c56fed9bc24a
actually we monitor PI Notification on the same server where interface is running so shouldn't be a problem.
I have this issue again, last time I restarted Service with correct user and password and it fixed the issue and since then I restarted service few times since PI Notification red crossed again and again in SMT even service account password hasn't been changed.
I'm not sure maybe something wrong with regedit, issue seems happen after server restart but not 100% sure.
I was reading this KB00761 - Least Required Privilege for PI Notifications where it mentions:
"In some cases, additional permissions are required for the PI Notifications Service to read, write to, or create Performance Counters. If you see the error "Access to the registry key 'Global' is denied" in the message logs, you may need to add the Notifications service account to the local Windows group 'Performance Monitor Users' so that the service can read/write to performance counters. If you see the error "Requested registry access is not allowed," you may need to temporarily add the Notifications service account to the local Administrators group in order to create Performance Counters. This access can be removed once the counters are created. ."
Could you check the message logs for any error?
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