Self-Managed Replica Set Maintenance Tutorials

The following tutorials provide information in maintaining existing replica sets.

Change the Oplog Size of Self-Managed Replica Set Members

Increase the size of the oplog which logs operations. In most cases, the default oplog size is sufficient.

Perform Maintenance on Self-Managed Replica Set Members

Perform maintenance on a member of a replica set while minimizing downtime.

Force a Self-Managed Replica Set Member to Become Primary

Force a replica set member to become primary.

Resync a Member of a Self-Managed Replica Set

Sync the data on a member. Either perform initial sync on a new member or resync the data on an existing member that has fallen too far behind to catch up by way of normal replication.

Configure Replica Set Tag Sets

Assign tags to replica set members for use in targeting read and write operations to specific members.

Reconfigure Self-Managed Replica Set for Unavailable Members

Reconfigure a replica set when a majority of replica set members are down or unreachable.

Self-Managed Chained Replication

Disable or enable chained replication. Chained replication occurs when a secondary replicates from another secondary instead of the primary.

Change Hostnames in a Self-Managed Replica Set

Update the replica set configuration to reflect changes in members' hostnames.

Configure a Self-Managed Secondary's Sync Target

Specify the member that a secondary member synchronizes from.

Rename a Self-Managed Replica Set

Rename an unsharded replica set.

Modify a Self-Managed PSA Replica Set Safely

Safely perform some reconfiguration changes on a primary-secondary-arbiter (PSA) replica set or on a replica set that is changing to a PSA architecture.

Mitigate Performance Issues in Self-Managed PSA Replica Sets

Reduce cache pressure and increased write traffic for a deployment that has a three-member primary-secondary-arbiter (PSA) architecture.