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Cannot start server after upgrading to 4.0

danb@storenext[email protected] EntrantCurrent User Role Novice
I upgraded from 3.4 to 3.6 and to 4.0
The upgrade to 3.6 secceded bu when upgrading to 4.0 it fails with the following error:

I STORAGE [initandlisten] exception in initAndListen: 28574 Cannot start server. Detected data files in /var/lib/mongo created by storage engine 'wiredTiger'. The configured storage engine is 'mmapv1'., terminating

Comments

  • Doug DuncanDoug Duncan Percona Inactive User Role Novice
    Hi [email protected] it looks like a setting in your process.

    It could also be that you have the MMAPv1 data located at a different path than what the data files.

    Let us know if you have any other questions.

    ~Doug
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