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问答 2023-07-02 来自：开发者社区

请问下 flink cdc 全量初始化mysql表时，主键是字符串类型同步很慢，这个需要咋优化配置？

请问下 flink cdc 全量初始化mysql表时，主键是字符串类型同步很慢，这个需要咋优化配置参数？目前我设置了 chunk size 4k-10w之间变化不明显，速度很慢1-2K/s，如果主键时bigiint 没啥问题？

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更新时间 2024-10-15 09:17:09

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产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优