Yakov, I would say that my example is not about adding transactions to ATOMIC cache, but rather about adding consistent snapshots to it.
On Mon, Sep 18, 2017 at 1:59 PM, Yakov Zhdanov <[email protected]> wrote: > Vladimir, I think we can ask user to switch to transactional cache to > support your example. Otherwise, it seems we are turning atomic caches to > tx implicitly. > > --Yakov > > 2017-09-18 13:49 GMT+03:00 Vladimir Ozerov <[email protected]>: > > > Semen, > > > > Consider use case of some audit table where I log user actions over time. > > Every actions is a put to ATOMIC cache. User interacts with my > application, > > and performs the following set of actions: > > 1. 08:00 MSK -> LOGIN > > 2. 08:10 MSK -> Update something > > 3. 08:20 MSK -> LOGUT > > > > If MVCC is there, whenever I query all actions performed by the user, I > > would see either {}, {1}, {1, 2} or {1, 2, 3} > > Without MVCC I can see weird things, such as {1, 3} or {2}, or > whatsoever. > > > > Vladimir. > > > > > > On Mon, Sep 18, 2017 at 1:41 PM, Semyon Boikov <[email protected]> > > wrote: > > > > > Guys, > > > > > > I do not really understand mvcc for atomic cache, could you please > > provide > > > some real use case. > > > > > > Thank you > > > > > > On Mon, Sep 18, 2017 at 1:37 PM, Yakov Zhdanov <[email protected]> > > > wrote: > > > > > > > Ouch... of course it makes sense for atomic caches. Seems I am not > > fully > > > > switched on after weekend =) > > > > > > > > Agree on other points. > > > > > > > > --Yakov > > > > > > > > > >
