Upgrading from 16.04 to 18.04 breaks MongoDB

Asked by LostNotFound

I am facing a problem upgrading multiple servers from Ubuntu 16.04 to 18.04. The servers are running the supported versions of Mongo, 2.6.10 on 16.04 and 3.6.3 after the upgrade. The upgrade breaks the existing MongoDB databases, and as far as I understand the way to fix it is to downgrade mongo and to the rolling updates.

This does not feel like the intended way to upgrade the systems, and I have so far been unable to find a propper way to do it. Is it really the intended result to have to downgrade Mongo manually and upgrade step by step?

I appreciate any suggestions, thank you in advance.

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LostNotFound (lostnotfound) said :

Has anyone else experienced this as well? How do others get around this problem when upgrading multiple systems?

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LostNotFound (lostnotfound) said :

Does anyone have an opinion on this? Any input would be greatly appreciated.

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