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MongoDB

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Important Capabilities​

CapabilityStatusNotes
Detect Deleted Entities✅Optionally enabled via stateful_ingestion.remove_stale_metadata
Platform Instance✅Enabled by default
Schema Metadata✅Enabled by default

This plugin extracts the following:

  • Databases and associated metadata
  • Collections in each database and schemas for each collection (via schema inference)

By default, schema inference samples 1,000 documents from each collection. Setting schemaSamplingSize: null will scan the entire collection. Moreover, setting useRandomSampling: False will sample the first documents found without random selection, which may be faster for large collections.

Note that schemaSamplingSize has no effect if enableSchemaInference: False is set.

Really large schemas will be further truncated to a maximum of 300 schema fields. This is configurable using the maxSchemaSize parameter.

CLI based Ingestion​

Starter Recipe​

Check out the following recipe to get started with ingestion! See below for full configuration options.

For general pointers on writing and running a recipe, see our main recipe guide.

source:
  type: "mongodb"
  config:
    # Coordinates
    connect_uri: "mongodb://localhost"

    # Credentials
    username: admin
    password: password
    authMechanism: "DEFAULT"

    # Options
    enableSchemaInference: True
    useRandomSampling: True
    maxSchemaSize: 300

sink:
  # sink configs

Config Details​

Note that a . is used to denote nested fields in the YAML recipe.

FieldDescription
authMechanism
string
MongoDB authentication mechanism.
connect_uri
string
MongoDB connection URI.
Default: mongodb://localhost
enableSchemaInference
boolean
Whether to infer schemas.
Default: True
hostingEnvironment
Enum
Hosting environment of MongoDB, default is SELF_HOSTED, currently support SELF_HOSTED, ATLAS, AWS_DOCUMENTDB
Default: SELF_HOSTED
maxDocumentSize
integer
Default: 16793600
maxSchemaSize
integer
Maximum number of fields to include in the schema.
Default: 300
options
object
Additional options to pass to pymongo.MongoClient().
Default: {}
password
string
MongoDB password.
platform_instance
string
The instance of the platform that all assets produced by this recipe belong to. This should be unique within the platform. See https://datahubproject.io/docs/platform-instances/ for more details.
schemaSamplingSize
integer
Number of documents to use when inferring schema size. If set to null, all documents will be scanned.
Default: 1000
useRandomSampling
boolean
If documents for schema inference should be randomly selected. If False, documents will be selected from start.
Default: True
username
string
MongoDB username.
env
string
The environment that all assets produced by this connector belong to
Default: PROD
collection_pattern
AllowDenyPattern
regex patterns for collections to filter in ingestion.
Default: {'allow': ['.*'], 'deny': [], 'ignoreCase': True}
collection_pattern.ignoreCase
boolean
Whether to ignore case sensitivity during pattern matching.
Default: True
collection_pattern.allow
array
List of regex patterns to include in ingestion
Default: ['.*']
collection_pattern.allow.string
string
collection_pattern.deny
array
List of regex patterns to exclude from ingestion.
Default: []
collection_pattern.deny.string
string
database_pattern
AllowDenyPattern
regex patterns for databases to filter in ingestion.
Default: {'allow': ['.*'], 'deny': [], 'ignoreCase': True}
database_pattern.ignoreCase
boolean
Whether to ignore case sensitivity during pattern matching.
Default: True
database_pattern.allow
array
List of regex patterns to include in ingestion
Default: ['.*']
database_pattern.allow.string
string
database_pattern.deny
array
List of regex patterns to exclude from ingestion.
Default: []
database_pattern.deny.string
string
stateful_ingestion
StatefulStaleMetadataRemovalConfig
Base specialized config for Stateful Ingestion with stale metadata removal capability.
stateful_ingestion.enabled
boolean
Whether or not to enable stateful ingest. Default: True if a pipeline_name is set and either a datahub-rest sink or datahub_api is specified, otherwise False
Default: False
stateful_ingestion.remove_stale_metadata
boolean
Soft-deletes the entities present in the last successful run but missing in the current run with stateful_ingestion enabled.
Default: True

Code Coordinates​

  • Class Name: datahub.ingestion.source.mongodb.MongoDBSource
  • Browse on GitHub

Questions

If you've got any questions on configuring ingestion for MongoDB, feel free to ping us on our Slack.