We must ensure that MetadataConsistencyCheck is executed only on a primary Replica Set node.

When this is not happening?

CASE 1

• metadataConsistencyCheck command is received on node1
• node1 steps down before we can set the opCtx as interruptible
• metadataConsistencyCheck thread marks the opCtx as interruptible
• metadataConsistencyCheck thread will never be interrupted because stepdown has already happened, so it will run on a secondary replica set node.

CASE 2

• metadataConsistencyCheck command is received on node1
• metadataConsistencyCheck thread marks the opCtx as interruptible
• node1 steps down before we can set the opCtx as interruptible
• metadataConsistencyCheck thread doesn't check if the opCtx has been interrupted and returns the result to the user