MongoDB pod cannot mount persistent volume

 Problem

MongoDB pods cannot start due to persistent volume mounting error.

 Solution

Recreate persistent volume claim.

1. Open MongoDB statefulset deployment yaml.

2. Set replicas to 0. Save and wait for all pods terminates.
   
   

   Open

   

3. Go to Storage → Persistent volume claims. Select the persistent volume claim belongs to the failing mogodb deployment and delete it.
   
   

   Open

   

4. Go back to the MongoDB stateful set deployment yaml and change replicas to 1.

5. The pod should be able to start now.