Typically, you should use a shard balancing window to specify when the balancer runs instead of manually starting and stopping defragmentation.
To manually stop defragmenting a sharded collection, use the configureCollectionBalancing command with the defragmentCollection option set to false.
About this Task
The procedure in this task uses an example sharded collection named ordersShardedCollection in a database named test.
You can use your own sharded collection and database in the procedure.
If you stop defragmenting a collection before defragmentation is complete, the collection is in a partially defragmented state and operates as usual. To resume defragmentation, restart the process.
Before you Begin
Start defragmenting a sharded collection. For details, see Start Defragmenting a Sharded Collection.
Connect to
mongos.
Procedure
Ensure defragmentation stopped
When defragmentation stops, the command output returns ok: 1:
{ ok: 1, '$clusterTime': { clusterTime: Timestamp({ t: 1678834337, i: 1 }), signature: { hash: Binary(Buffer.from("0000000000000000000000000000000000000000", "hex"), 0), keyId: Long("0") } }, operationTime: Timestamp({ t: 1678834337, i: 1 })}Next Steps
You can start defragmentation again at any time. For details, see Start Defragmenting a Sharded Collection.
Learn More
Print shard status, see
db.printShardingStatus()Retrieve shard status details, see
sh.status()View shard status collection fields, see Sharded Collection
See active mongos instances, see Active
mongosInstancesMonitor shards using MongoDB Atlas, see Review Sharded Clusters