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How can I recover a deleted collection in MongoDB?
No, you can’t rollback your queries as there is no such thing as a rollback in MongoDB. But you can use oplog (operations log) as this is a distinctive capped collection that maintains a rolling record of all processes/operations that you have used to modify the data that is stored inside your MongoDB databases.
Where is MongoDB data stored on Windows?
Install MongoDB On Windows MongoDB requires a data folder to store its files. The default location for the MongoDB data directory is c:\data\db. So you need to create this folder using the Command Prompt.
How to recover MongoDB data from a backup?
Restoring MongoDB From a Backup 1 Run mongod Directly From a Backup. A prerequisite for running mongod directly from the backup is that the backup target is a standard dump, and is not gzipped. 2 Run mongorestore. 3 Object Validation. 4 Oplog Replay.
What happens when MongoDB is out of sync?
A standalone connection string will fail if the MongoDB host proves unavailable. There are two types of backups in MongoDB: logical backups and physical backups. Logical backups dump data from databases into backup files, formatted as a BSON file. During the logical backup process, client APIs are used to get the data from the server.
When do you need to run repair on MongoDB?
If you are running with journaling enabled, there is almost never any need to run repair since the server can use the journal files to restore the data files to a clean state automatically. However, you may need to run repair in cases where you need to recover from a disk-level data corruption.
Where does MongoDB restore to localhost port?
By default, mongorestore connects to a MongoDB instance running on the localhost interface and on the default port (27017). If you want to restore to a different host or port, use the –host and –port options.