DistSQL API KV API Metadata/ Data location TSO/ Metadata PD PD PD 1. Bootstrap PD cluster with a discovery service 2. Start TiKV replicas and join the PD cluster 3. Start TiDB replicas and join the PD Bootstrapping PD1 1 PD TiDB Discovery PingCAP.com Deploying - Bootstrapping PD1 2 PD2 PD PD TiDB Discovery PingCAP.com Deploying - Bootstrapping PD1 3 PD2 PD3 PD PD PD TiDB Discovery PingCAP.com Deploying PD PD PD TiDB Discovery PD1 3 PD2 PD3 PD PD PD pd-server --initial=pd3 TiDB Discovery PingCAP.com Deploying - Bootstrapping PD1 3 PD2 PD3 PD PD PD pd-server --initial=pd3 TiDB Discovery pd-server --join=pd3

@Connor1996 • Add slow logs for peer and store messages #16600 @Connor1996 • PD • Enhance the service discovery capability of the PD client to improve its high availability and load balancing #7576 @CabinfeverB Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database

Delete data. 4.3.1.1.4 Useful notes Using driver or ORM framework? The Java driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database Delete data. 4.3.2.1.4 Useful notes Using driver or ORM framework? The Golang driver provides low-level access to the database, but it requires the developers to: • Manually establish and release database data. 177 4.3.3.1.4 Useful notes Using driver or ORM framework? The Python driver provides low-level access to the database, but it requires the develop- ers to: • Manually establish and release database