Shulou(Shulou.com)06/01 Report--

* MongoDB backup

The backup specified library # operates under linux, not in the database.

Mongodump-h ip-d dbname-o dir / /-h is followed by the server ip,-d followed by the database name. If you do not add it, all libraries will be backed up. After-o, specify where to backup. It is a directory such as: / tmp/mogodbbackup.

Back up all libraries

Mongodump-h ip-o dir # local backup, no need for-h

Back up the specified collection

Mongodump-d mydb-c testc-o / tmp/testc / /-c specifies the name of the collection

Export the collection to json file # text format, you can view the data directly.

Mongoexport-d mydb-c testc-o / tmp/testc.json / /-o is followed by a file name.

* MongoDB recovery

Restore all libraries

Mongorestore-- drop dir/ where dir is the directory name of the backup of all libraries, where-- drop is optional, which means that the previous data is deleted before recovery. It is not recommended.

Restore the specified library

Mongorestore-d mydb dir/-d follows the name of the library to be restored. Dir is the directory where the library was backed up.

Restore a collection

Mongorestore-d mydb-c testc dir/mydb/testc.bson / /-c is followed by the name of the collection to be restored. Dir is the path where the file was generated when backing up the mydb library. Here is the path of a bson file.

Import collection

Mongoimport-d mydb-c testc-- file / tmp/testc.json

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