features can be flexibly expanded at will. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper layer of the platform Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database. It focuses on how to make full and reasonable use of the computing and storage capabilities database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. 1.1.2 Product Features Fea- ture Definition Data Shard‐ ing Data sharding is

elastic scaling, encryption features & more. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper layer of the platform Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database. It focuses on how to make full and reasonable use of the computing and storage capabilities database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. 1 Apache ShardingSphere document 1.2 Product Features F ea tu re Definition

elastic scaling, encryption features & more. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper layer of the platform Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database. It focuses on how to make full and reasonable use of the computing and storage capabilities database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. 1 Apache ShardingSphere document, v5.2.1 1.1.2 Product Features Fea- ture Definition

elastic scaling, encryption features & more. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper layer of the platform Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database. It focuses on how to make full and reasonable use of the computing and storage capabilities database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. 1 Apache ShardingSphere document 1.2 Product Features F ea tu re Definition

protocol, SQL dialect and database storage. It can quickly link applications and multi‐mode heterogeneous databases quickly. • Enhance: Capture database access entry to provide additional features transparently and distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐Native. As the cornerstone of enterprises, the relational database has a huge database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. Currently, MySQL and PostgreSQL (compatible with PostgreSQL‐based databases, such

is positioned as a Database Plus, and aims at building a standard layer and ecosystem above heterogeneous databases. It focuses on how to reuse existing databases and their respective upper layer, rather database protocol, SQL dialect and database storage. It can quickly connect applications and heterogeneous databases quickly. • Enhance: Capture database access entry to provide additional features transparently and distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐Native. As the cornerstone of enterprises, the relational database has a huge

is positioned as a Database Plus, and aims at building a standard layer and ecosystem above heterogeneous databases. It focuses on how to reuse existing databases and their respective upper layer, rather database protocol, SQL dialect and database storage. It can quickly connect applications and heterogeneous databases quickly. • Enhance: Capture database access entry to provide additional features transparently and distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐Native. As the cornerstone of enterprises, the relational database has a huge

and distributed governance, applicable in a variety of situa‐ tions such as Java isomorphism, heterogeneous language and cloud native. Apache ShardingSphere aiming at reasonably making full use of the database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. Friendlier to DBA, the MySQL version provided now can use any kind of terminal (such that any distributed trans‐ action manager is not on. They do not have any coordination and communication ability, or know other data nodes have succeeded or not. Though without any consumption in performance

deleted Create snapshot Restore snapshot if user regret Before After Backup snapshot to heterogeneous FileSystem ❏ Design of backup logic ❏ Simply design to make sure it’s 100% work ❏ Copy entire Backup Manager HBase Backup Manager ❏ Delete snapshot regularly ❏ Verify the backups on the heterogeneous fileSystem Problems in XiaoMi ❏ Problem 3. Restart of a small cluster is stuck at log splitting

scheduling, and opti- mize the scheduling formula to prevent the bursting issue (which is similar to heterogeneous space clusters) caused by large compression rate discrepancies #3592 #10005 • Tools – Backup 5.1.3.1 Migrate data from CSV files to TiDB 5.1.3.1.1 Scenarios You can migrate data from heterogeneous databases that are not compatible with the MySQL protocol to TiDB. 158 5.1.3.1.2 Migration method TiFlash exceeds 2 seconds is over 99%, an alert is triggered. • Solution: It might be caused by a communication error between TiKV and the proxy. Contact TiFlash R&D for support. 8 Troubleshoot 8.1 TiDB Troubleshooting