下面是一个使用 Python 代码来修改 MongoDB 数据路径的示例: importsubprocessdefstop_mongodb_service():subprocess.run(["sudo","service","mongod","stop"])defbackup_mongodb_data(backup_path):subprocess.run(["mongodump","--out",backup_path])defmodify_mongodb_data_path(config_file,new_data_path...
Change Streams 优化的变更流 从MongoDB 5.1 开始,对变更流进行了优化,从而提高了资源利用率并加快了某些聚合分析管道阶段的执行速度。 wallTime 变更流输出字段 从MongoDB 6.0 开始,变更流输出新增wallTime 字段,包含数据库操作的服务器日期和时间。 附带文档前映像和后映像的变更流 从MongoDB 6.0 开始,您可以使用...
如果指定file,必须指定logAppend:true#当实例重启时,不创建新的日志文件, 在老的日志文件末尾继续添加path:/usr/local/mongodb/logs/mongodb.log#日志路径storage:journal:#回滚日志enabled:truedbPath:/usr/local/mongodb/data#数据存储目录directoryPerDB:true#默认,false不适用inmemoryenginewiredTiger:engineConfig:cac...
To change the --directoryperdb option for existing deployments: For standalone instances: Use mongodump on the existing mongod instance to generate a backup. Stop the mongod instance. Add the --directoryperdb value and configure a new data directory Restart the mongod instance. Use mongorestor...
参考官档:https://docs.mongodb.com/v3.2/tutorial/change-oplog-size/ 1 Restart a Secondary in Standalone Mode on a Different Port 1) db.shutdownServer() 2) 用其他端口以单机模式重新启动该实例,不使用--replSet参数 方法一:根据生产环境参数文件设置启动mongo,即将非默认情况参数进行指定 ...
As data insert rates can change based on activity and usage patterns, it is important to ensure that the balancing window you select will be sufficient to support the needs of your deployment. (5)删除balance 窗口 2.6.2 关闭balance 默认balance 的运行可以在任何时间,只迁移需要迁移的chunk,如果要...
Change Log Change history can be found inHISTORY.md. Compatibility The driver currently supports 4.0+ servers. For exhaustive server and runtime version compatibility matrices, please refer to the following links: MongoDB NodeJS Component Support Matrix ...
全数据库级角色(All-Database Roles) 超级用户角色(Superuser Roles) 内部角色(Internal Role) 数据库用户角色 read read角色包含读取所有非系统集合数据和订阅部分系统集合(system.indexes、system.js、system.namespaces)的权限。 该角色权限包含命令操作:changeStream、collStats、dbHash、dbStats、find、killCursors、lis...
Start themongodyou wish to change to WiredTiger. Ifmongodis already running, you can skip this step. 2 Export data usingmongodump. mongodump --out=<exportDataDestination> Specify additional options as appropriate, such as username and password if running with authorization enabled. Seemongodumpfo...
MariaDB [(none)]> change master to master_user='slave',master_password='123456',master_host='192.168.0.152',master_log_file='mysql-bin.000004',master_log_pos=479; Query OK, 0 rows affected (0.01 sec) MariaDB [(none)]> start slave; ...