database sharding pattern

Anjali Sharma answered on January 9, 2023 Popularity 10/10 Helpfulness 1/10

answer database sharding pattern

database sharding pattern

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To shard a database is to start with a single database and then divvy up its data across two or more databases (shards).

Each shard has the same database schema as the original database.

Most data is distributed such that each row appears in exactly one shard.

The combined data from all shards is the same as the data from the original database.

sharding.jdbc.config.sharding.master-slave-rules.<master-slave-data-source-name>.master-data-source-name= #Name of master data source
sharding.jdbc.config.sharding.master-slave-rules.<master-slave-data-source-name>.slave-data-source-names[0]= #Names of Slave data sources
sharding.jdbc.config.sharding.master-slave-rules.<master-slave-data-source-name>.slave-data-source-names[1]= #Names of Slave data sources
sharding.jdbc.config.sharding.master-slave-rules.<master-slave-data-source-name>.slave-data-source-names[x]= #Names of Slave data sources
sharding.jdbc.config.sharding.master-slave-rules.<master-slave-data-source-name>.load-balance-algorithm-class-name= #Load balance algorithm class name. This class need to implements MasterSlaveLoadBalanceAlgorithm, and require a no argument constructor 
sharding.jdbc.config.sharding.master-slave-rules.<master-slave-data-source-name>.load-balance-algorithm-type= #Load balance algorithm type, values should be: `ROUND_ROBIN` or `RANDOM`. Ignore if `load-balance-algorithm-class-name` is present 

sharding.jdbc.config.config.map.key1= #User-defined arguments
sharding.jdbc.config.config.map.key2= #User-defined arguments
sharding.jdbc.config.config.map.keyx= #User-defined arguments

sharding.jdbc.config.props.sql.show= #To show SQLS or not, default value: false
sharding.jdbc.config.props.executor.size= #The number of working threads, default value: CPU count
sharding.jdbc.config.props.check.table.metadata.enabled= #Check the metadata consistency of all the tables, default value: false

https://learning.oreilly.com/library/view/cloud-architecture-patterns/9781449357979/ch07.html#context-id5

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Contributed on Jan 09 2023

Anjali Sharma

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database sharding pattern

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