How do I enable WiredTiger in MongoDB?

How do I enable WiredTiger in MongoDB?

Procedure

1. Start the mongod you wish to change to WiredTiger. ¶
2. Export data using mongodump . ¶
3. Create a data directory for the new mongod running with WiredTiger. ¶
4. Update configuration for WiredTiger. ¶
5. Start mongod with WiredTiger. ¶
6. Upload the exported data using mongorestore . ¶

Which is the default engine for MongoDB?

WiredTiger
WiredTiger is the default storage engine starting in MongoDB 3.2. It is well-suited for most workloads and is recommended for new deployments. WiredTiger provides a document-level concurrency model, checkpointing, and compression, among other features.

Do you need to upgrade MongoDB to use WiredTiger?

You must be using MongoDB version 3.0 or greater in order to use the WiredTiger storage engine. If using an earlier MongoDB version, you must upgrade your MongoDB version before proceeding to change your storage engine.

Which is the default storage engine in MongoDB?

Starting in MongoDB 3.2, the WiredTiger storage engine is the default storage engine. For existing deployments, if you do not specify the –storageEngine or the storage.engine setting, the version 3.2+ mongod instance can automatically determine the storage engine used to create the data files in the –dbpath or storage.dbPath.

Do you need WiredTiger to run mongodump?

If run remotely, mongodump and mongorestore must specify the ip address or the associated hostname in order to connect to the mongod. You must be using MongoDB version 3.0 or greater in order to use the WiredTiger storage engine.

What kind of concurrency control does MongoDB use?

For most read and write operations, WiredTiger uses optimistic concurrency control. WiredTiger uses only intent locks at the global, database and collection levels. When the storage engine detects conflicts between two operations, one will incur a write conflict causing MongoDB to transparently retry that operation.