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常见问题

最后更新时间:2023-05-31 15:01:45
    本文为您介绍一键迁移功能相关的常见问题。

    常见问题

    1、一键迁移后,迁移源端云数据库 MySQL 支持的部分高级功能参数在迁移目标端 TDSQL-C MySQL 版上也支持吗?

    暂不全部支持,TDSQL-C MySQL 版将逐步进行适配。迁移后,TDSQL-C MySQL 版具体是否存在云数据库 MySQL 支持的高级功能参数,请参见下表。
    MySQL 5.7 版本
    MySQL 8.0 版本
    MySQL 侧参数名
    MySQL 侧参数值
    TDSQL-C MySQL 侧参数是否存在
    cdb_recycle_bin_enabled
    OFF
    information_schema_stats_expiry
    86400
    binlog_row_event_max_size
    8192
    innodb_backquery_history_limit
    8000000
    innodb_ddl_threads
    4
    innodb_parallel_ddl
    OFF
    innodb_adaptive_hash_index
    OFF
    cdb_plan_cache
    OFF
    innodb_table_drop_mode
    sync_drop
    cdb_recycle_bin_retention
    604800
    slave_net_timeout
    120
    innodb_backquery_enable
    OFF
    innodb_fast_ddl
    OFF
    max_length_for_sort_data
    1024
    slave_parallel_type
    LOGICAL_CLOCK
    cdb_optimize_large_trans_binlog
    OFF
    innodb_fast_ahi_cleanup_for_drop_table
    OFF
    txsql_parallel_exchange_buffer_size
    1048576
    innodb_temp_data_file_path
    ibtmp1:12M:autoextend
    slave_rows_search_algorithms
    TABLE_SCAN,INDEX_SCAN,HASH_SCAN
    cdb_recycle_scheduler_interval
    0
    innodb_ddl_buffer_size
    10485760
    cdb_kill_idle_trans_timeout
    0
    collation_server
    utf8_tolower_ci
    delay_key_write
    ON
    innodb_async_truncate_size
    128
    cdb_more_gtid_feature_supported
    OFF
    cdb_opt_outline_enabled
    OFF
    innodb_txsql_parallel_partitions_per_worker
    13
    cdb_kill_user_extra
    root@%
    slave_parallel_workers
    0
    innodb_backquery_window
    900
    MySQL 侧参数名
    MySQL 侧参数值
    TDSQL-C MySQL 侧参数是否存在
    cdb_recycle_bin_enabled
    OFF
    information_schema_stats_expiry
    86400
    binlog_row_event_max_size
    8192
    innodb_backquery_history_limit
    8000000
    innodb_ddl_threads
    4
    innodb_parallel_ddl
    OFF
    innodb_adaptive_hash_index
    OFF
    cdb_plan_cache
    OFF
    innodb_table_drop_mode
    sync_drop
    cdb_recycle_bin_retention
    604800
    slave_net_timeout
    120
    innodb_backquery_enable
    OFF
    innodb_fast_ddl
    OFF
    max_length_for_sort_data
    1024
    slave_parallel_type
    LOGICAL_CLOCK
    cdb_optimize_large_trans_binlog
    OFF
    innodb_fast_ahi_cleanup_for_drop_table
    OFF
    txsql_parallel_exchange_buffer_size
    1048576
    innodb_temp_data_file_path
    ibtmp1:12M:autoextend
    slave_rows_search_algorithms
    TABLE_SCAN,INDEX_SCAN,HASH_SCAN
    cdb_recycle_scheduler_interval
    0
    innodb_ddl_buffer_size
    10485760
    cdb_kill_idle_trans_timeout
    0
    collation_server
    utf8_tolower_ci
    delay_key_write
    ON
    innodb_async_truncate_size
    128
    cdb_more_gtid_feature_supported
    OFF
    cdb_opt_outline_enabled
    OFF
    innodb_txsql_parallel_partitions_per_worker
    13
    cdb_kill_user_extra
    root@%
    slave_parallel_workers
    0
    innodb_backquery_window
    900

    2、一键迁移后,迁移源端云数据库 MySQL IOPS 监控项在迁移目标端 TDSQL-C MySQL 版上支持吗?

    暂不支持,TDSQL-C MySQL 版将逐步进行适配。
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