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EXPLAIN REBALANCE PARTITIONS
Returns the set of steps that REBALANCE PARTITIONS would run if you executed it now.
Syntax
EXPLAIN REBALANCE PARTITIONS ON db_name
Remarks
db_name- name of a MemSQL database.- This command must be run on the master aggregator node (see Node Requirements for MemSQL Commands ).
Example
memsql> EXPLAIN REBALANCE PARTITIONS ON memsql_demo;
+-------------------+---------+----------------------------+-------------+-------+
| Action | Ordinal | Target_Host | Target_Port | Phase |
+-------------------+---------+----------------------------+-------------+-------+
| PROMOTE PARTITION | 46 | ip-10-0-2-180.ec2.internal | 3306 | 1 |
| COPY PARTITION | 46 | ip-10-0-3-62.ec2.internal | 3306 | 2 |
| COPY PARTITION | 58 | ip-10-0-3-62.ec2.internal | 3306 | 2 |
| COPY PARTITION | 63 | ip-10-0-1-25.ec2.internal | 3306 | 2 |
| PROMOTE PARTITION | 2 | ip-10-0-3-62.ec2.internal | 3306 | 6 |
| COPY PARTITION | 2 | ip-10-0-2-180.ec2.internal | 3306 | 7 |
+-------------------+---------+----------------------------+-------------+-------+
6 rows in set (0.00 sec)
