Comments (1)
duimba
commented on June 23, 2024
在动态数据源DynamicDataSource类中determineCurrentLookupKey，每次都是随机选择真实的DataSource，但是在DbSegmentIdServiceImpl.getNextSegmentId方法中使用了乐观锁，每获取一个SegmentInfo都存在query 以及 update 数据的动作，所以query和update可能操作的不是同一张表
这的确是一个严重的bug......
已经修复，通过在DbSegmentIdServiceImpl.getNextSegmentId方法上增加了@transactional标记，保证了同一connection
同时修改了dao层的update方法，增加了biz_type判定,以防意外
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