db.hostInfo()

db.hostInfo()

Returns a document with information about the underlying system that the mongod or mongos runs on. 返回一个文档，其中包含有关mongod或mongos运行的底层系统的信息。Some of the returned fields are only included on some platforms.一些返回的字段仅包含在某些平台上。

db.hostInfo() provides a mongosh helper method around the hostInfo command. 围绕hostInfo命令提供了mongosh助手方法。The output of db.hostInfo() on a Linux system will resemble the following:Linux系统上db.hostInfo()的输出如下：

{
   "system" : {
          "currentTime" : ISODate("<timestamp>"),
          "hostname" : "<hostname>",
          "cpuAddrSize" : <number>,
          "memSizeMB" : <number>,
          "memLimitMB" : <number>,  // Available starting in MongoDB 4.0.9 (and 3.6.13)
          "numCores" : <number>,
          "cpuArch" : "<identifier>",
          "numaEnabled" : <boolean>
   },
   "os" : {
          "type" : "<string>",
          "name" : "<string>",
          "version" : "<string>"
   },
   "extra" : {
          "versionString" : "<string>",
          "libcVersion" : "<string>",
          "kernelVersion" : "<string>",
          "cpuFrequencyMHz" : "<string>",
          "cpuFeatures" : "<string>",
          "pageSize" : <number>,
          "numPages" : <number>,
          "maxOpenFiles" : <number>
   },
   "ok" : <return>
}

See hostInfo for full documentation of the output of db.hostInfo().有关db.hostInfo()输出的完整文档，请参阅hostInfo。