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Polling Engine gone wild

I ran into an interesting issue today. I have 5 additional polling engines with 2 on one domain (Domain 1) and three on another (Domain 2) connected to the same database. I migrated a bunch of nodes off of a Domain 1 polling engine to one of the Domain 2 polling engines and didn't think anything about it until my Network team told me the original polling engine and the one I moved it too is polling the devices!!! I fired up Wireshark and confirmed it. I checked in the Database and verified that the correct polling engine is assigned in the database. I also verified that when I unmanage the device, polling stops on the polling engine I moved the device too but the original polling engine continues polling it. Has anyone run into this before? What was the fix? We are using NPM v11.5.3. Thanks!

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Accepted answers

rsprim

I talked to SolarWinds and we tried uninstalling the JobEngine, JobEnginev2, Collector and Information Service on the polling engine with the issue and it seems to be working fine. The Uninstall/Reinstall was done through an elevated command prompt. Thanks for the help Mark!

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m_roberts

This is indeed odd behaviour and one which SW support may want to see, as the configuration is not a common one.

I would replace the local Job Engine cache files, to see if these are holding legacy polling tasks - Replace Job Engine v1 and Job Engine v2 SDF Files - SolarWinds Worldwide, LLC. Help and Support

Also as you have reviewed the Nodes > EngineID value and confirmed these are correct for the AllEngines (this is v11.5.3) table, I would suggest a review of the subscriptions table to see if anything in their is referencing old engine assignments.

Be interested to see how you get on.

Mark Roberts

Prosperon - UK SolarWinds Partners

Installation | Consultancy | Training | Licenses

rsprim

Hey Mark,

Thanks for the reply. I hadn't tried replacing the SDFs so I tried it and I noticed that the Job Engine folder didn't have a Data directory. I was hopeful this was the problem so uninstalled and reinstalled the app and now I have the Data folder but unfortunately it didn't solve the problem. It probably fixed another problem though. I had already tried clearing the PendingNotifications, Subscriptions and Subscription Tags but I didn't stop services before doing it. It didn't work either so I stopped and disabled all the services on the polling engines and cleared them from the database again. Unfortunately, the polling engine is still polling the wrong devices. I have a case (00151195) open with support and I'm waiting to hear from an Application engineer.

Robert

rsprim