The following tutorials provide information in maintaining existing replica sets.以下教程提供了维护现有副本集的信息。
Change the Oplog Size of Self-Managed Replica Set Members更改自我管理副本集成员的操作日志大小Increase the size of the oplog which logs operations. In most cases, the default oplog size is sufficient.增加记录操作的oplog的大小。在大多数情况下，默认的oplog大小就足够了。Perform Maintenance on Self-Managed Replica Set Members对自我管理副本集成员执行维护Perform maintenance on a member of a replica set while minimizing downtime.在尽量减少停机时间的同时，对副本集的成员进行维护。Force a Self-Managed Replica Set Member to Become Primary强制自管理副本集成员成为主要成员Force a replica set member to become primary.强制副本集成员成为主成员。Resync a Member of a Self-Managed Replica Set重新同步自我管理副本集的成员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.同步成员上的数据。对新成员执行初始同步，或者对落后太多而无法通过正常复制赶上的现有成员重新同步数据。Configure Replica Set Tag Sets配置副本集标记集Assign tags to replica set members for use in targeting read and write operations to specific members.为副本集成员分配标签，以便将读写操作定向到特定成员。Reconfigure a Self-Managed Replica Set with Unavailable Members使用不可用成员重新配置自我管理副本集Reconfigure a replica set when a majority of replica set members are down or unreachable.当大多数副本集成员关闭或无法访问时，重新配置副本集。Self-Managed Chained Replication自我管理的链式复制Disable or enable chained replication. Chained replication occurs when a secondary replicates from another secondary instead of the primary.禁用或启用链式复制。当一个辅助服务器从另一个辅助而不是主服务器进行复制时，就会发生链式复制。Change Hostnames in a Self-Managed Replica Set更改自我管理副本集中的主机名Update the replica set configuration to reflect changes in members' hostnames.更新副本集配置以反映成员主机名的更改。Configure a Self-Managed Secondary's Sync Target配置自管理次要服务器的同步目标Specify the member that a secondary member synchronizes from.指定辅助成员与之同步的成员。Rename a Self-Managed Replica Set重命名自我管理副本集Rename an unsharded replica set.重命名未分片的副本集。Modify a Self-Managed PSA Replica Set Safely安全地修改自我管理的PSA副本集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.在主辅仲裁器（PSA）副本集或正在更改为PSA架构的副本集上安全地执行一些重新配置更改。Mitigate Performance Issues with a Self-Managed PSA Replica Set使用自我管理的PSA副本集缓解性能问题Reduce cache pressure and increased write traffic for a deployment that has a three-member primary-secondary-arbiter (PSA) architecture.对于具有三成员主从仲裁器（PSA）架构的部署，降低缓存压力并增加写入流量。