Flink CDC在使用oracle cdc监控数据库，系统打印LogMiner is now using the maximum batch size 100000....，继而无法监控数据变更，除了调大log.mining.batch. size.max参数设置，还有其他办法么？这个过程中缺失的数据有啥办法能重新捕获到嘛？

问答 2023-12-11 来自：开发者社区

Flink CDC有没有办法可以做到cdc表更新以后就去数据库查询最新的jdbc表呢？

Flink CDC中flinksql进行一个3张表的全量加增量实时联表同步，现在我如果3张表都用cdc连接器，flink程序的内存就会涨的很快，如果设置状态过期时间，就会导致数据丢失，因为不同表的时间跨度可能会比较长现在，我把这三张表更新最迟的一个表使用cdc连接器，其余两个使用jdbc连接器，但是flink会缓存jdbc的表，所以联表执行的不是数据库的最新数据，有没有办法可以做到cdc表更新....

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更新时间 2024-12-04 18:04:16

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