MongoDB: db.hostInfo() method

db.hostInfo

The db.hostInfo() method is used to return a document with information about the system MongoDB runs on.

Syntax:

db.hostInfo()

{
   "system" : {
          "currentTime" : ISODate("<timestamp>"),
          "hostname" : "<hostname>",
          "cpuAddrSize" : <number>,
          "memSizeMB" : <number>,
          "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>
}

Example: MongoDB: db.hostInfo() method

db.hostInfo();

Output:

> db.hostInfo();
{
        "system" : {
                "currentTime" : ISODate("2016-01-11T11:43:17.824Z"),
                "hostname" : "myownpc-PC",
                "cpuAddrSize" : 32,
                "memSizeMB" : 3487,
                "numCores" : 2,
                "cpuArch" : "x86",
                "numaEnabled" : false
        },
        "os" : {
                "type" : "Windows",
                "name" : "Microsoft Windows 7",
                "version" : "6.1 (build 7600)"
        },
        "extra" : {
                "pageSize" : NumberLong(4096)
        },
        "ok" : 1
}

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