The MANIFEST file is a Badger file in the p directory of Dgraph Alpha node. e.g., when ls-ing a p directory you’ll see the MANIFEST file as one of files:
$ ls ./p
000001.vlog 00001.mem DISCARD KEYREGISTRY LOCK MANIFEST
I’d recommend upgrading to the latest Dgraph release (currently v20.11.1) if you’re going to redeploy your cluster. And, we don’t usually recommend EFS/NFS for a proper Dgraph setup (see our production checklist docs). It could be that persisting data over EFS caused the issue here.
Are you running the Alpha node with four thousand CPU cores? Or does “4096 vCPU” here mean 4 cores?