we had a mongodb sharded cluster of version 3.6. we updated this cluster to 4.0 and 4.2 respectively. then we upgrade the cluster to 4.4 based on the docs. the problem is when we are doing the last step that is setFeatureCompatibilityVersion we got a wierd error. actully we dont know that what is this about. thanks for your help
db.adminCommand( { setFeatureCompatibilityVersion: "4.4" } )
we expect that it returns one but returns 0
here is the output: "ok" : 0, "errmsg" : "No chunks were found for the collection",
mongodump
and import into a fresh deployment.