I followed the official guide to upgrade a MongoDB ReplicaSet from 2.6 to 3.0 on the secondary member.
- Shutdown mongod (systemctl stop mongodb.service) on secondary
- Installed binaries (via apt-get)
- Update mongod.conf
- Restart mongod: failed!
[NetworkInterfaceASIO-Replication-0] Uncaught exception in NetworkInterfaceASIO IO worker thread of type: Location10320: BSONElement: bad type 108
[NetworkInterfaceASIO-Replication-0] Fatal Assertion 28820
Looks like my databases are corrupt but mongod w/out replSet works fine with the same dbs.
Did I miss something?