become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of sharding databases (tables) with the same schema, it is the logical table identification in SQL. For instance, the data of order is divided into 10 tables according to the last number of the primary key, and table that really exists in the horizontal sharding database, i.e., t_order_0 to t_order_9 in the instance above. Binding Table It refers to the primary table and the joiner table with the same sharding

dropping a data source using DistSQL? . . . 351 7.8.20 [DistSQL] How to solve Failed to get driver instance for jd- bcURL=xxx. exception when adding a data source using DistSQL? . . . . . . . 351 7.8.21 become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of sharding databases (tables) with the same schema, it is the logical table identification in SQL. For instance, the data of order is divided into 10 tables according to the last number of the primary key, and

become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of collectively to horizontal sharding databases (tables) with the same logic and data structure. For instance, the order data is divided into 10 tables according to the last number of the primary key, and physical table that really exists in the sharding database, i.e., t_order_0 to t_order_9 in the instance above. 3.1. Sharding 11 Apache ShardingSphere document, v5.0.0-beta Data Node As the smallest

a data source using DistSQL? . . . . . . . 582 13.5.3 DistSQL How to solve Failed to get driver instance for jd- bcURL=xxx. exception when adding a data source using DistSQL? . . . . . . . 582 13.6 Other ShardingSphere instances or be aware of each other in a cluster environment. Updating metadata through one instance causes inconsistencies in other instances because they cannot get the latest metadata. It is ideal become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of

a data source using DistSQL? . . . . . . . 552 13.5.3 DistSQL How to solve Failed to get driver instance for jd- bcURL=xxx. exception when adding a data source using DistSQL? . . . . . . . 552 13.6 Other ShardingSphere instances or be aware of each other in a cluster environment. Updating metadata through one instance causes inconsistencies in other instances because they cannot get the latest metadata. It is ideal become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of

. . . 93 iv 10.13 During the zk authorization upgrade process, there was a false death of the instance during the rolling deployment process, and even if the historical version was rolled back, there instances node Job running instance information, the child node is the primary key of the current job running in‐ stance. The primary key of the job running instance is composed of the IP address and primary keys of the job running instance are all ephemeral nodes, which are reg‐ istered when the job instance is online and automatically cleaned up when the job instance is offline. The registry monitors

dropping a data source using DistSQL? . . . 363 7.8.20 [DistSQL] How to solve Failed to get driver instance for jd- bcURL=xxx. exception when adding a data source using DistSQL? . . . . . . . 363 7.8.21 become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of sharding databases (tables) with the same schema, it is the logical table identification in SQL. For instance, the data of order is divided into 10 tables according to the last number of the primary key, and

dropping a data source using DistSQL? . . . 460 8.5.3 DistSQL How to solve Failed to get driver instance for jd- bcURL=xxx. exception when adding a data source using DistSQL? . . . . . . . 460 8.6 Other ShardingSphere instances or be aware of each other in a cluster environment. Updating metadata through one instance causes inconsistencies in other instances because they cannot get the latest metadata. It is ideal become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of

dropping a data source using DistSQL? . . . 499 8.5.3 DistSQL How to solve Failed to get driver instance for jd- bcURL=xxx. exception when adding a data source using DistSQL? . . . . . . . 499 8.6 Other ShardingSphere instances or be aware of each other in a cluster environment. Updating metadata through one instance causes inconsistencies in other instances because they cannot get the latest metadata. It is ideal become the key to the whole system. From the aspect of operation costs, when the data in a database instance has reached above the thresh‐ old, DBA’s operation pressure will also increase. The time cost of

├──${your_instance_ip_a}@${your_instance_port_x} ├ ├ ├ ├──${your_instance_ip_b}@${your_instance_port_y} ├ ├ ├ ├──.... ├ ├ ├──circuit_breaker ├ ├ ├ ├──${your_instance_ip_c}@${your_instance_port_v} ├ ├ ├ ├ ├──${your_instance_ip_d}@${your_instance_port_w} ├ ├ ├ ├──.... ├ ├──storage_nodes ├ ├ ├──disable ├ ├ ├ ├──${schema_1.ds_0} ├ ├ ├ ├──${schema_1.ds_1} ├ ├ ├ ├──.... ├ ├ ├──primary ├ ├ ├ ├──${schema_2 localhost:2181(CONNECTED) 0] set /${your_zk_namespace}/status/compute_nodes/ circuit_breaker/${your_instance_ip_a}@${your_instance_port_x} DISABLED 禁用从库 在读写分离场景下，可在数据源名称子节点中写入 DISABLED（忽略大小写）表示禁用从库数据源，删 除 DISABLED