Mongodb_sink

[dinesh]

Hello all,

Can we implement TwoPhaseCommitProtocol for mongodb to get EXACTLY_ONCE semantics. Will there be any limitation for it?

Thanks,

Dinesh.

[lec ssmi]

First of all, mongodb itself does not support transactions. But you can init a buffer to save  each row when  transaction begins, and save all the buffered records to database  once  when  transaction completes. 

C DINESH <[hidden email]> 于2020年7月15日周三 上午9:28写道：

Hello all,

Can we implement TwoPhaseCommitProtocol for mongodb to get EXACTLY_ONCE semantics. Will there be any limitation for it?

Thanks,

Dinesh.