Database Manual / Reference / Database Commands

Diagnostic Commands

Note

~~For details on a specific command, including syntax and examples, click on the link to the command's reference page.~~有关特定命令的详细信息，包括语法和示例，请单击指向该命令参考页面的链接。

~~Name~~名称	~~Description~~描述
`buildInfo`	~~Displays statistics about the MongoDB build.~~显示有关MongoDB构建的统计信息。
`collStats`	~~Reports storage utilization statics for a specified collection.~~报告指定集合的存储利用率统计数据。
`connPoolStats`	~~Reports statistics on the outgoing connections from this MongoDB instance to other MongoDB instances in the deployment.~~报告此MongoDB实例到部署中其他MongoDB实例的传出连接的统计数据。
`connectionStatus`	~~Reports the authentication state for the current connection.~~报告当前连接的身份验证状态。
`dataSize`	~~Returns the data size for a range of data. For internal use.~~返回数据范围的数据大小。供内部使用。
`dbHash`	~~Returns hash value a database and its collections.~~返回数据库及其集合的哈希值。
`dbStats`	~~Reports storage utilization statistics for the specified database.~~报告指定数据库的存储利用率统计信息。
`explain`	~~Returns information on the execution of various operations.~~返回有关各种操作执行的信息。
`getCmdLineOpts`	~~Returns a document with the run-time arguments to the MongoDB instance and their parsed options.~~向MongoDB实例返回一个包含运行时参数及其解析选项的文档。
`getLog`	~~Returns recent log messages.~~返回最近的日志消息。
`hostInfo`	~~Returns data that reflects the underlying host system.~~返回反映底层主机系统的数据。
`listCommands`	~~Lists all database commands provided by the current `mongod` instance.~~列出当前`mongod`实例提供的所有数据库命令。
`lockInfo`	~~Internal command that returns information on locks that are currently being held or pending.~~ 返回当前持有或挂起的锁信息的内部命令。~~Only available for `mongod` instances.~~仅适用于`mongod`实例。
`ping`	~~Internal command that tests intra-deployment connectivity.~~测试内部部署连接的内部命令。
`profile`	~~Interface for the database profiler.~~数据库分析器的接口。
`serverStatus`	~~Returns a collection metrics on instance-wide resource utilization and status.~~返回实例范围内资源利用率和状态的集合指标。
`top`	~~Returns raw usage statistics for each database in the `mongod` instance.~~返回`mongod`实例中每个数据库的原始使用统计数据。
`validate`	~~Internal command that scans for a collection's data and indexes for correctness.~~扫描集合的数据和索引是否正确的内部命令。
`validateDBMetadata`	~~Checks that the stored metadata of a database/collection is valid within a particular API version.~~检查数据库/集合的存储元数据在特定的API版本中是否有效。
`whatsmyuri`	~~Internal command that returns information on the current client.~~返回当前客户端信息的内部命令。

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