ATTACH LEAF ALL

Syntax

ATTACH LEAF ALL [FORCE] [NO REBALANCE]

Remarks

• ATTACH LEAF ALL is equivalent to running ATTACH LEAF on every leaf in a cluster that is currently in the detached state. If you want the leaves to fully rebalance after reattaching, you must run REBALANCE PARTITIONS afterward. This will rebalance and synchronize all partitions in one operation.

  To avoid the partial rebalance that is run automatically (after attach_rebalance_delay_seconds), use ATTACH LEAF ALL NO REBALANCE.

• FORCE is optional. Using FORCE overrides any conflicts that would prevent ATTACH LEAF ALL from running. In practice, this happens when the data on the leaf has diverged away from the current state of the cluster (for example, a database was recreated while the leaf was down).

• Detached leaves automatically reattach. To disable this feature, set the global variable auto_attach to false. For more information see SET GLOBAL .

• This command must be run on the master aggregator node (see Node Requirements for SingleStore Commands ).

• This command causes implicit commits. Refer to COMMIT for more information.

• Refer to the Permission Matrix for the required permission.

Example

ATTACH LEAF ALL;

Query OK, 1 row affected (0.99 sec)

Related Topics

• ATTACH LEAF