buildInfo¶

buildInfo¶

The buildInfo command is an administrative command which returns a build summary for the current mongod. buildInfo has the following prototype form:

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{ buildInfo: 1 }

In the mongo shell, call buildInfo in the following form:

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db.runCommand( { buildInfo: 1 } )

Example

The output document of buildInfo has the following form:

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{
  "version" : "<string>",
  "gitVersion" : "<string>",
  "sysInfo" : "<string>",
  "loaderFlags" : "<string>",
  "compilerFlags" : "<string>",
  "allocator" : "<string>",
  "versionArray" : [ <num>, <num>, <...> ],
  "javascriptEngine" : "<string>",
  "bits" : <num>,
  "debug" : <boolean>,
  "maxBsonObjectSize" : <num>,
  "ok" : <num>
}

Consider the following documentation of the output of buildInfo:

buildInfo¶: The document returned by the buildInfo command.

buildInfo.gitVersion¶: The commit identifier that identifies the state of the code used to build the mongod.

buildInfo.sysInfo¶: A string that holds information about the operating system, hostname, kernel, date, and Boost version used to compile the mongod.

buildInfo.loaderFlags¶: The flags passed to the loader that loads the mongod.

buildInfo.compilerFlags¶: The flags passed to the compiler that builds the mongod binary.

buildInfo.allocator¶: Changed in version 2.2.

The memory allocator that mongod uses. By default this is tcmalloc after version 2.2, and system before 2.2.

buildInfo.versionArray¶: An array that conveys version information about the mongod instance. See version for a more readable version of this string.

buildInfo.javascriptEngine¶: Changed in version 2.4.

A string that reports the JavaScript engine used in the mongod instance. By default, this is V8 after version 2.4, and SpiderMonkey before 2.4.

buildInfo.bits¶: A number that reflects the target processor architecture of the mongod binary.

buildInfo.debug¶: A boolean. true when built with debugging options.

buildInfo.maxBsonObjectSize¶: A number that reports the Maximum BSON Document Size.

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