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This document lists the check items for database migration, sync, and subscription tasks. If an error is reported for a check item, fix it as instructed in the corresponding document.

MySQL/TDSQL-C

• Database connection check
• Peripheral check
• Version check
• Partial database parameter check
• Target database content conflict check
• Target database space check
• Binlog parameter check
• Foreign key dependency check
• View check
• Warning item check
• RDS check

TDSQL for MySQL

• Database connection check
• Peripheral check
• Version check
• Partial database parameter check
• Target database content conflict check
• Target database space check
• Binlog parameter check
• Foreign key dependency check
• Warning item check

PostgreSQL

• Source database connectivity check
• Source database version check
• Target database connectivity check
• Account conflict check
• Parameter configuration conflict check
• Structure conflict check
• Extension/Plugin compatibility check
• Incremental migration precondition check

MongoDB

• MongoDB connection check
• Database/Table content conflict check
• Source database node role check
• Oplog check
• Database version check
• Database capacity check
• Target database load check
• Shardkey check
• Source database balancer check

SQL Server

• Migration parameter check
• Migration network check
• Source database connectivity check
• Target database connectivity check
• Disk space check
• Database version check
• Source database existence check
• Target database existence check