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REPLICATE DATABASE
Start or continue replicating a database from a remote host to a local database.
REPLICATE DATABASE db_name FROM master_user[:master_password]@master_host[:master_port][/master_db_name]
Notes
db_name
is the name of the target database on the secondary MemSQL instance.REPLICATE DATABASE
will always attempt to create a new database nameddb_name
. The database name on the secondary does not need to match the name of its corresponding remote primary database.- MemSQL does not support granular security (see :ref:
security_accounts
), somaster_user
,master_password
must grant access to the primary database. The password is assumed to be '’ ifmaster_password
is not specified explicitly. master_host
is the host name or IPv4/IPv6 pointing to the remote database. It can be quoted to allow special characters (e.g. “-", among others).master_db_name
is the name of the remote, primary database. If it is not specified explicitly, MemSQL attempts to replicate fromdb_name
on the master MemSQL instance.- While replicating, the database is in the
replicating
state (see Database States).
Notes
- The long form of
CONTINUE REPLICATING
can be used to re-point a replica from one master to another.
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
memsql> REPLICATE DATABASE ExampleDatabase FROM root@master-host:3306;
Query OK, 1 row affected (0.32 sec)