Why you need it?
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tcc目前支持将一阶段的数据存储至tc,这对tc端是一个开销
我们已有tcc防悬挂表,可在其中增加application_data字段,进行存储数据,这样免去了额外的rpc开销,也减轻了对tc的负担,且存储到本地时,由于防悬挂表的插入是跟本地事务一并插入,这样原子性也可以得到保障,避免一阶段数据存储到tc后,其实一阶段失败本地事务已经回滚了,这个数据也就无用的情况发生
需要有开关决定是存储至tc还是本地
提供一个api,让用户塞数据,在切面结束前再存入数据库
二阶段的时候需要自动从本地防悬挂表中读取,放入BusinessActionContext 中
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1条答案
按热度按时间pgvzfuti1#
please assign to me agin :)