ShardingSphere built-in provides a variety of load balancer algorithms, including polling algorithm, random access algorithm and weight access algorithm, which can meet users' needs in most business scenarios.
Moreover, considering the complexity of the business scenario, the built-in algorithm also provides an extension mode. Users can implement the load balancer algorithm they need based on SPI interface.
Type: ROUND_ROBIN
Type: RANDOM
Type: WEIGHT
Attributes:
| Name | DataType | Description |
|---|---|---|
| ${replica-name} | double | Attribute name uses the name of the replica, and the parameter fills in the weight value corresponding to the replica. Weight parameter range min > 0, total <= Double.MAX_VALUE. |
rules:
- !READWRITE_SPLITTING
dataSources:
readwrite_ds:
writeDataSourceName: write_ds
readDataSourceNames:
- read_ds_0
- read_ds_1
transactionalReadQueryStrategy: PRIMARY
loadBalancerName: random
loadBalancers:
random:
type: RANDOM