is a tool that supports the full data migration and the incremental data replication from MySQL/MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB files, you can use Dumpling to perform the full migration, which makes data migration from MySQL or MariaDB easier. 189 – To migrate all data from a database with a small data size volume (for example, less initialization period. • Incremental replication. You can use TiDB DM to replicate binlogs from MySQL, MariaDB, or Aurora to TiDB, which greatly reduces the window downtime during the replication period. • Data

is a tool that supports the full data migration and the incremental data replication from MySQL/MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB successfully: mysql --version An example of the expected output: mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline �→ 5.1 2. Run the connection string obtained in Step 1. mysql parameters. This section introduces MySQL Connector/J’s parameter configurations (If you use MariaDB, see MariaDB’s parameter configurations). Because this document can- not cover all configuration items

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 749 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 767 6.4.7 Migrate Data from CSV Hash partitioned tables #50044 @Defined2014 • Fix the connection error that occurs when you use MariaDB Connector/J with compression enabled #49845 @onlyacat • TiKV • Fix the issue that the damaged SST (DM) is a tool that supports full data migration and incremental data replication from MySQL or MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 735 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 753 6.4.7 Migrate Data from CSV (DM) is a tool that supports full data migration and incremental data replication from MySQL or MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB successfully: mysql --version An example of the expected output: mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline �→ 5.1 2. Run the connection string obtained in Step 1. mysql

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 767 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 785 6.4.7 Migrate Data from CSV @3AceShowHand • TiDB Data Migration (DM) • In a MariaDB primary-secondary replication scenario, where the migration path is: MariaDB primary instance -> MariaDB secondary instance -> DM -> TiDB, when gtid_strict_mode gtid_strict_mode = off and the GTID of the MariaDB secondary instance is not strictly incrementing (for example, there is data writing to the MariaDB secondary instance), the DM task will report an error less

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 752 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 770 6.4.7 Migrate Data from CSV go-mysql #11041 @D3Hunter • Fix the issue that SET statements cause DM to panic during the migration of MariaDB data #10206 @dveeden • TiDB Lightning • Fix the issue that TiDB Lightning might report an error (DM) is a tool that supports full data migration and incremental data replication from MySQL or MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 755 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 773 6.4.7 Migrate Data from CSV (DM) is a tool that supports full data migration and incremental data replication from MySQL or MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB successfully: mysql --version An example of the expected output: mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline �→ 5.1 2. Run the connection string obtained in Step 1. mysql

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 750 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 768 6.4.7 Migrate Data from CSV (DM) is a tool that supports full data migration and incremental data replication from MySQL or MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB successfully: mysql --version An example of the expected output: mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline �→ 5.1 2. Run the connection string obtained in Step 1. mysql

除此以外，TiDB 不支持 MySQL 复制协议，但提供了专用工具用于与 MySQL 复制数据： • 从 MySQL 复制：TiDB Data Migration (DM) 是将 MySQL/MariaDB 数据迁移到 TiDB 的工具，可用于增量数据的复 制。 • 向 MySQL 复制：TiCDC 是一款通过拉取 TiKV 变更日志实现的 TiDB 增量数据同步工具，可通过MySQL sink 文件的数据全量导入到 TiDB 集群。 – 数据导出：使用 Dumpling 将 TiDB 集群的数据全量导出为 CSV 文件或 Mydumper SQL 文件，从而更好 地配合从 MySQL 数据库或 MariaDB 数据库进行数据迁移。 – TiDB DM (Data migration) 也提供了适合小规模数据量数据库（例如小于 1 TiB）的全量数据迁移功能。 • 快速初始化 TiDB 集群：TiDB 果。请注意，使用快速初始化 TiDB 集群的功能对 TiDB 集群的影响极大，在进行初始化的过程中，TiDB 集 群不支持对外访问。 • 增量数据迁移：使用 TiDB DM 从 MySQL，MariaDB 或 Aurora 同步 Binlog 到 TiDB，该功能可以极大降低业务 迁移过程中停机窗口时间。 • TiDB 集群复制：TiDB 支持备份恢复功能，该功能可以实现将 TiDB 的某个快照初始化到另一个全新的

Migrate and Merge MySQL Shards of Large Datasets to TiDB · · · · · · · 739 7 6.4.6 Migrate Data from MariaDB to TiDB · · · · · · · · · · · · · · · · · · · · · · · · · · · · 757 6.4.7 Migrate Data from CSV (DM) is a tool that supports full data migration and incremental data replication from MySQL or MariaDB into TiDB. • Replicate data to MySQL: TiCDC is a tool for replicating the incremental data of TiDB successfully: mysql --version An example of the expected output: mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline �→ 5.1 2. Run the connection string obtained in Step 1. mysql