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Replica Set Maintenance TutorialsΒΆ

The following tutorials provide information in maintaining existing replica sets.

Change the Size of the Oplog
Increase the size of the oplog which logs operations. In most cases, the default oplog size is sufficient.
Perform Maintenance on Replica Set Members
Perform maintenance on a member of a replica set while minimizing downtime.
Force a Member to Become Primary
Force a replica set member to become primary.
Resync a Member of a 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 a Replica Set with Unavailable Members
Reconfigure a replica set when a majority of replica set members are down or unreachable.
Manage 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 Replica Set
Update the replica set configuration to reflect changes in members’ hostnames.
Configure a Secondary’s Sync Target
Specify the member that a secondary member synchronizes from.

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