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buildInfo

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  • Definition
  • Compatibility
  • Syntax
  • Usage
  • Output

Definition

buildInfo

The buildInfo command returns a build summary for the current mongod.

Compatibility

This command is available in deployments hosted in the following environments:

  • MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud

Note

This command is supported in all MongoDB Atlas clusters. For information on Atlas support for all commands, see Unsupported Commands.

Syntax

The command has the following syntax:

db.runCommand(
   {
     buildInfo: 1
   }
)

Usage

In mongosh, call buildInfo in the following form:

db.runCommand( { buildInfo: 1 } )

The output document of buildInfo has the following form:

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

Output

buildInfo

The document returned by the buildInfo command.

Supported

These fields are stable and should provide consistent behavior.

buildInfo.gitVersion

The commit identifier that identifies the state of the code used to build the mongod.

buildInfo.versionArray

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

buildInfo.version

A string that conveys version information about the mongod instance. If you need to present version information to a human, this field is preferable to versionArray.

This string will take the format <major>.<minor>.<patch> in the case of a release, but development builds may contain additional information.

buildInfo.storageEngines

A list of storage engines available to the mongod server.

buildInfo.javascriptEngine

A string that reports the JavaScript engine used in the mongod instance. By default, this is mozjs.

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.

buildInfo.openssl

An embedded document describing the version of the TLS/SSL library that mongod was built with and is currently using.

buildInfo.modules

A list of add-on modules that mongod was built with. Possible values currently include "enterprise" and "rocksdb".

Unstable

These fields are for internal use only, and you should not expect their behavior or existence to remain consistent on any level.

buildInfo.allocator

The memory allocator that mongod uses. By default this is tcmalloc.

Note

Starting in version 8.0, MongoDB uses an updated version of TCMalloc that improves memory fragmentation and management. See tcmalloc upgrade for more information.

buildInfo.buildEnvironment

An embedded document containing various debugging information about the mongod build environment.

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