Sep 17, 2020

4 min read

ShardingSphere 4.x -Sharding-Proxy-Configuration Manual

Data Source and Sharding Configuration Instance

Sharding-Proxy supports multiple logic data source, each one of which is a yalm configuration document named with config- prefix. The following is the configuration instance of config-xxx.yaml.

Data Sharding

dataSources:

schemaName: sharding_dbdataSources:
  ds0: 
    url: jdbc:postgresql://localhost:5432/ds0
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds1:
    url: jdbc:postgresql://localhost:5432/ds1
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65shardingRule:
  tables:
    t_order:
      actualDataNodes: ds${0..1}.t_order${0..1}
      databaseStrategy:
        inline:
          shardingColumn: user_id
          algorithmExpression: ds${user_id % 2}
      tableStrategy: 
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order${order_id % 2}
      keyGenerator:
        type: SNOWFLAKE
        column: order_id
    t_order_item:
      actualDataNodes: ds${0..1}.t_order_item${0..1}
      databaseStrategy:
        inline:
          shardingColumn: user_id
          algorithmExpression: ds${user_id % 2}
      tableStrategy:
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order_item${order_id % 2}
      keyGenerator:
        type: SNOWFLAKE
        column: order_item_id
  bindingTables:
    - t_order,t_order_item
  defaultTableStrategy:
    none:

Read-Write Split

schemaName: master_slave_dbdataSources:
  ds_master:
    url: jdbc:postgresql://localhost:5432/ds_master
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds_slave0:
    url: jdbc:postgresql://localhost:5432/ds_slave0
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds_slave1:
    url: jdbc:postgresql://localhost:5432/ds_slave1
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65masterSlaveRule:
  name: ds_ms
  masterDataSourceName: ds_master
  slaveDataSourceNames: 
    - ds_slave0
    - ds_slave1

Data Masking

schemaName: encrypt_dbdataSource:
  url: jdbc:mysql://127.0.0.1:3306/demo_ds?serverTimezone=UTC&useSSL=false
  username: root
  password:
  connectionTimeoutMilliseconds: 30000
  idleTimeoutMilliseconds: 60000
  maxLifetimeMilliseconds: 1800000
  maxPoolSize: 50encryptRule:
  encryptors:
    encryptor_aes:
      type: aes
      props:
        aes.key.value: 123456abc
    encryptor_md5:
      type: md5
  tables:
    t_encrypt:
      columns:
        user_id:
          plainColumn: user_plain
          cipherColumn: user_cipher
          encryptor: encryptor_aes
        order_id:
          cipherColumn: order_cipher
          encryptor: encryptor_md5

Data Sharding + Read-Write Split

schemaName: sharding_master_slave_dbdataSources:
  ds0:
    url: jdbc:postgresql://localhost:5432/ds0
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds0_slave0:
    url: jdbc:postgresql://localhost:5432/ds0_slave0
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds0_slave1:
    url: jdbc:postgresql://localhost:5432/ds0_slave1
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds1:
    url: jdbc:postgresql://localhost:5432/ds1
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds1_slave0:
    url: jdbc:postgresql://localhost:5432/ds1_slave0
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds1_slave1:
    url: jdbc:postgresql://localhost:5432/ds1_slave1
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65shardingRule:  
  tables:
    t_order: 
      actualDataNodes: ms_ds${0..1}.t_order${0..1}
      databaseStrategy:
        inline:
          shardingColumn: user_id
          algorithmExpression: ms_ds${user_id % 2}
      tableStrategy: 
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order${order_id % 2}
      keyGenerator:
        type: SNOWFLAKE
        column: order_id
    t_order_item:
      actualDataNodes: ms_ds${0..1}.t_order_item${0..1}
      databaseStrategy:
        inline:
          shardingColumn: user_id
          algorithmExpression: ms_ds${user_id % 2}
      tableStrategy:
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order_item${order_id % 2}
      keyGenerator:
        type: SNOWFLAKE
        column: order_item_id
  bindingTables:
    - t_order,t_order_item
  broadcastTables:
    - t_config
  defaultDataSourceName: ds0
  defaultTableStrategy:
    none:
  
  masterSlaveRules:
    ms_ds0:
      masterDataSourceName: ds0
      slaveDataSourceNames:
        - ds0_slave0
        - ds0_slave1
      loadBalanceAlgorithmType: ROUND_ROBIN
    ms_ds1:
      masterDataSourceName: ds1
      slaveDataSourceNames: 
        - ds1_slave0
        - ds1_slave1
      loadBalanceAlgorithmType: ROUND_ROBIN

Data Sharding + Data Masking

dataSources:

schemaName: sharding_dbdataSources:
  ds0: 
    url: jdbc:postgresql://localhost:5432/ds0
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65
  ds1:
    url: jdbc:postgresql://localhost:5432/ds1
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 65shardingRule:
  tables:
    t_order: 
      actualDataNodes: ds${0..1}.t_order${0..1}
      databaseStrategy:
        inline:
          shardingColumn: user_id
          algorithmExpression: ds${user_id % 2}
      tableStrategy: 
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order${order_id % 2}
      keyGenerator:
        type: SNOWFLAKE
        column: order_id
    t_order_item:
      actualDataNodes: ds${0..1}.t_order_item${0..1}
      databaseStrategy:
        inline:
          shardingColumn: user_id
          algorithmExpression: ds${user_id % 2}
      tableStrategy:
        inline:
          shardingColumn: order_id
          algorithmExpression: t_order_item${order_id % 2}
      keyGenerator:
        type: SNOWFLAKE
        column: order_item_id
  bindingTables:
    - t_order,t_order_item
  defaultTableStrategy:
    none:
    
  encryptRule:
    encryptors:
      encryptor_aes:
        type: aes
        props:
          aes.key.value: 123456abc
    tables:
      t_order:
        columns:
          order_id:
            plainColumn: order_plain
            cipherColumn: order_cipher
            encryptor: encryptor_aes

Overall Configuration Instance

Sharding-Proxy uses conf/server.yaml to configure the registry center, authentication information and common properties.

Orchestration

Orchestration can config config-center and registry-center now, as follow:

orchestrationType: config_center #config config-center
orchestrationType: registry_center #config registry_center
orchestrationType: config_center,registry_center #config config-center and registry_center

#Omit data sharding and read-write split configurationsorchestration:
  orchestration_ds: 
    orchestrationType: config_center,registry_center
    instanceType: zookeeper
    serverLists: localhost:2181
    namespace: orchestration
    props:
      overwrite: true

Authentication

authentication:
  users:
    root:
      password: root
    sharding:
      password: sharding 
      authorizedSchemas: sharding_db

Common property

props:
  executor.size: 16
  sql.show: false

Data Source and Sharding Configuration Item Explanation

Data Sharding

schemaName: #Logic data schema namedataSources: #Data source configuration, which can be multiple data_source_name
  <data_source_name>: #Different from Sharding-JDBC configuration, it does not need to be configured with database connection pool
    url: #Database url connection
    username: #Database username
    password: #Database password
    connectionTimeoutMilliseconds: 30000 #Connection timeout
    idleTimeoutMilliseconds: 60000 #Idle timeout setting
    maxLifetimeMilliseconds: 1800000 #Maximum lifetime
    maxPoolSize: 65 #Maximum connection number in the poolshardingRule: #Omit data sharding configuration and be consistent with Sharding-JDBC configuration

Read-Write Split

schemaName: #Logic data schema namedataSources: #Omit data source configurations; keep it consistent with data shardingmasterSlaveRule: #Omit data source configurations; keep it consistent with Sharding-JDBC

Data Masking

dataSource: #Ignore data sources configurationencryptRule:
  encryptors:
    <encryptor-name>:
      type: #encryptor type
      props: #Properties, e.g. `aes.key.value` for AES encryptor
        aes.key.value: 
  tables:
    <table-name>:
      columns:
        <logic-column-name>:
          plainColumn: #plaintext column name
          cipherColumn: #ciphertext column name
          assistedQueryColumn: #AssistedColumns for query，when use ShardingQueryAssistedEncryptor, it can help query encrypted data
          encryptor: #encrypt name
props:
  query.with.cipher.column: true #Whether use cipherColumn to query or not

Overall Configuration Explanation

Orchestration

It is the same with Sharding-JDBC configuration.

Proxy Property

#Omit configurations that are the same with Sharding-JDBC
props:
  acceptor.size: #The thread number of accept connection; default to be 2 times of cpu core
  proxy.transaction.type: #Support LOCAL, XA, BASE; Default is LOCAL transaction, for BASE type you should copy ShardingTransactionManager associated jar to lib directory
  proxy.opentracing.enabled: #Whether to enable opentracing, default not to enable; refer to [APM](/en/features/orchestration/apm/) for more details
  check.table.metadata.enabled: #Whether to check metadata consistency of sharding table when it initializes; default value: false

Authentication

It is used to verify the authentication to log in Sharding-Proxy, which must use correct user name and password after the configuration of them.

authentication:
  users:
    root: # self-defined username
      password: root # self-defined password
    sharding: # self-defined username
      password: sharding # self-defined password
      authorizedSchemas: sharding_db, masterslave_db # schemas authorized to this user, please use commas to connect multiple schemas. Default authorizedSchemas is all of the schemas.

Yaml Syntax Explanation

!! means instantiation of that class

- means one or multiple can be included

[] means array, substitutable with -

ShardingSphere 4.x -Sharding-Proxy-Configuration Manual

Data Source and Sharding Configuration Instance

Data Sharding

Read-Write Split

Data Masking

Data Sharding + Read-Write Split

Data Sharding + Data Masking

Overall Configuration Instance

Orchestration

Authentication

Common property

Data Source and Sharding Configuration Item Explanation

Data Sharding

Read-Write Split

Data Masking

Overall Configuration Explanation

Orchestration

Proxy Property

Authentication

Yaml Syntax Explanation

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