Database Manual / Reference / Database Commands / Diagnostics

ping (database command数据库命令)

Definition定义

ping
The ping command is a no-op used to test whether a server is responding to commands. This command will return immediately even if the server is write-locked:ping命令是一个no操作，用于测试服务器是否对命令做出响应。即使服务器被写锁定，此命令也会立即返回：

Compatibility兼容性

This command is available in deployments hosted in the following environments:此命令在以下环境中托管的部署中可用：

  • MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud：云中MongoDB部署的完全托管服务

Note

This command is supported in all MongoDB Atlas clusters. 所有MongoDB Atlas集群都支持此命令。For information on Atlas support for all commands, see Unsupported Commands.有关Atlas支持所有命令的信息，请参阅不支持的命令。

  • MongoDB Enterprise: The subscription-based, self-managed version of MongoDB：MongoDB的基于订阅的自我管理版本
  • MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB：MongoDB的源代码可用、免费使用和自我管理版本

Syntax语法

The command has the following syntax:该命令具有以下语法：

db.runCommand(
   {
     ping: 1
   }
)

The value (e.g. 1 above) does not impact the behavior of the command.该值（例如上面的1）不会影响命令的行为。