What is a collection dump?

What is a collection dump?

mongodump is a utility for creating a binary export of the contents of a database. mongodump can export data from either mongod or mongos instances; i.e. can export data from standalone, replica set, and sharded cluster deployments. Run mongodump from the system command line, not the mongo shell.

How do I backup a single collection in MongoDB?

Taking collection dump (backup)

1. Dump all collection mongodump.
2. Dump specific database only mongodump –db=DB_NAME.
3. Dump database with username & password mongodump -u=USERNAME -p=PASSWORD –db=DB_NAME.
4. Dump from another host mongodump –host HOST_NAME/HOST_IP –port HOST_PORT –out {YOUR_DIRECTOTY_PATH} –db=DB_NAME.

Is BSON better than JSON?

BSON is designed to be efficient in space, but in some cases is not much more efficient than JSON. In some cases BSON uses even more space than JSON. The reason for this is another of the BSON design goals: traversability. BSON adds some “extra” information to documents, like length of strings and subobjects.

How to use mongodump for 1 collection?

Hope that helps. Very basic commands for dump mongodb. Only able to dump from another host when they allow it. Here is an example of how you can export a single collection with mongodump.exe on Windows 10: The exported collection is users, the database is meteor, the host localhost, the port is 27017.

Is there a way to export data from Mongo?

mongodump is a utility for creating a binary export of the contents of a database. mongodump can export data from either mongod or mongos instances; i.e. can export data from standalone, replica set, and sharded cluster deployments. Run mongodump from the system command line, not the mongo shell.

What kind of JSON format does mongodump use?

If using read-only views , mongodump only captures a view’s metadata: it does not create a binary export of the documents included in the view. To capture the documents in a view use –viewsAsCollections. mongodump uses Extended JSON v2.0 (Canonical) format for the metadata files.

Why does mongodump push data out of memory?

If your data is larger than system memory, the mongodump will push the working set out of memory. mongodump automatically creates FIPS-compliant connections to a mongod / mongos that is configured to use FIPS mode.