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db.hostInfo()

db.hostInfo()

Returns a document with information about the underlying system that the mongod or mongos runs on. Some of the returned fields are only included on some platforms.

db.hostInfo() provides a helper in the mongo shell around the hostInfo The output of db.hostInfo() on a Linux system will resemble the following:

{
"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().

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