It simply must be non-decreasing- dup ids are ok.
Since txid is used for positioning, if you had a long series of identical
txids you might have to scan through a lot of records to find the record
you were really looking for if you were doing a lookup. Other than that
there should be no impact.
On Tue, Sep 20, 2016 at 10:37 AM, john.lonergan <john.loner...@gmail.com>
> Docs say the txn Id is an application supplied sequence number. It is
> required to be non-decreasing. Users usually use either timestamp or offset.
> What are the consequences of publishing two consecutive messages with the
> same txn ids.