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getParameter
getParameter
is an administrative command for retrieving the values of parameters. 是用于检索参数值的管理命令。Use the 使用db.adminCommand( { command } )
method to run the getParameter
command in the admin
database.db.adminCommand( { command } )
方法在admin
数据库中运行getParameter
命令。
The getParameter
command has the following syntax:getParameter
命令具有以下语法:
{
getParameter: <value>,
<parameter> : <value>,
comment: <any>
}
The command takes the following fields:该命令接受以下字段:
getParameter | int, string, document |
|
<parameter> | string |
|
comment | any |
|
getParameter
runs on the admin
database only, and returns an error if run on any other database.getParameter
仅在admin
数据库上运行,如果在任何其他数据库上运行则返回错误。
The possible value for <parameter>
may vary depending on what version and storage engine in use. <parameter>
的可能值可能因使用的版本和存储引擎而异。See Retrieve All Parameters for an example of listing the available parameters.有关列出可用参数的示例,请参阅检索所有参数。
The following operation runs 以下操作使用getParameter
on the admin
database using a value of saslHostName
to retrieve the value for that parameter:saslHostName
值在admin
数据库上运行getParameter
,以检索该参数的值:
db.adminCommand( { getParameter : 1, "saslHostName" : 1 } )
The command returns the following output:该命令返回以下输出:
The output may vary depending on the version and specific configuration of your MongoDB instance.输出可能因MongoDB实例的版本和特定配置而异。
{ "saslHostName" : "www.example.net:27018", "ok" : 1 }
The following operation runs 以下操作运行值为getParameter
with a value of '*'
to retrieve all parameters:'*'
的getParameter
以检索所有参数:
db.adminCommand( { getParameter : '*' } )
The output may vary depending on the version of MongoDB and the specific configuration of the running MongoDB instance.输出可能会因MongoDB的版本和正在运行的MongoDB实例的特定配置而异。
setParameter
for more about these parameters.有关这些参数的详细信息。
The following example runs 以下示例使用getParameter
with {showDetails: true}
to report details on saslHostName
.{showDetails: true}
运行getParameter
以报告saslHostName
的详细信息。
db.adminCommand( { getParameter : { showDetails: true }, "saslHostName" : 1 } )
Example output:示例输出:
{ saslHostName: { value: '<hostname>', settableAtRuntime: false, settableAtStartup: true }, ok: 1 }
The output may vary depending on the version and specific configuration of your MongoDB instance.输出可能因MongoDB实例的版本和特定配置而异。
The following example runs 以下示例使用getParameter
with {showDetails: true, allParameters: true}
to report details on all parameters.{showDetails: true, allParameters: true}
运行getParameter
以报告所有参数的详细信息。
db.adminCommand( { getParameter : { showDetails: true, allParameters: true } } )