Setting the Redundancy Level

Setting the Engine Variable

Use the SET GLOBAL command to change redundancy_level engine variable on the master aggregator at run time:

SET @@GLOBAL.redundancy_level = {1 | 2};

You can inspect the current value with the SELECT GLOBAL command:

SELECT @@GLOBAL.redundancy_level;

Adding and Removing Leaves

Use ADD LEAF and REMOVE LEAF to add leaves to, and remove leaves from, a SingleStore cluster.

Adding and Removing Child Aggregators

Use ADD AGGREGATOR and REMOVE AGGREGATOR to add and remove child aggregators from a SingleStore cluster.