MongoDB 3.4.1 on Windows Server 2019

[Fabio_Ramohitaj]

Hi @Ilya_Khilkevich,

I’ll link you some of the answers I liked:

Upgrading from MongoDB 3.0 to 4.4

Hi @Evan_L, Successive in-place upgrades are the most thoroughly tested approach and will minimise downtime. However, if downtime is acceptable (and you’re open to hitting a few fixable speedbumps along the way), mongorestore is definitely a possibility. Please see my comment on Replace mongodb binaries all at once? - #3 by Stennie_X for more elaboration on alternatives to in-place upgrades. The mongorestore path is the last option discussed in my comment: Regards, Stennie

How to upgrade from v3.6.3 to v4.4.5?

Hi @mental_N_A, You have multiple solutions to upgrade from MDB 3.6 to 4.4. But before you try anything BACKUP EVERYTHING and of course make sure that you can recreate a 3.6.3 node from your backup so you can always come back and try something else. The dump solution mongodump & mongorestore can backup and restore entire databases in a MongoDB cluster. The BSON file they create might not be compatible if the gap between your MongoDB versions is too large (like 2.4 to 4.4 for example). But be…

Regards