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RESTORE

Restore data from a binary backup file.

RESTORE [DATABASE] db_name FROM "backup_path"
  • db_name is the name of a MemSQL database.
  • backup_path is the path used in BACKUP .
  • The RESTORE command replays a binary backup file in the same manner in which MemSQL recovers a database snapshot during startup.
  • A RESTORE operation temporarily puts the database being restored into the recovering snapshot state. A database in this state cannot be queried. When the RESTORE command finishes, it puts the database into the online state. (see :ref:database_states for more information).
  • The path backup_path needs to be accessible by the memsqld process. Paths are resolved relative to the memsqlbin/data directory.
  • This command must be run on the master aggregator node (see Node Requirements for MemSQL Commands).
Info

This MemSQL feature is only available in MemSQL Enterprise Edition. MemSQL Enterprise Edition includes 24x7 support and several enterprise-only features for critical deployments. For more information about MemSQL Community and MemSQL Enterprise, see the MemSQL Editions page.

Example

The following example restores from the /var/lib/memsql/data/ directory.

memsql> RESTORE DATABASE memsql_demo FROM "./";
Query OK, 1 row affected, 2 warnings (44.52 sec)