On Mon, Aug 31, 2015 at 5:57 PM, Alexey Goncharuk < alexey.goncha...@gmail.com> wrote:
> As far as I understood Yakov's point, even this message indicating that no > change happened is redundant because we have message delivery guarantees on > communication level and no messages can be lost. If a node is waiting for a > message and receives a message indicating that no change had happened, I am > not even sure how this node should react: it means that the message with an > important update somehow was not received (a bug in the code?) and the next > message indicates that no updates after the lost message were made. > I still would wait for a No-Change empty partition exchange message, rather than have no message at all (and wait for a timeout?). Yakov, can you please chime in and let us all know what you meant by that ticket? > > 2015-08-31 17:33 GMT-07:00 Dmitriy Setrakyan <dsetrak...@apache.org>: > > > On Mon, Aug 31, 2015 at 4:58 PM, Alexey Goncharuk < > > alexey.goncha...@gmail.com> wrote: > > > > > Gianfranco, > > > > > > What do you mean by 'local cache' here? > > > > > > If you are talking about the local partition map, I do not think we > have > > > such a method. The background exchange that is described in the ticket > is > > > handled in controlled by the ResendTimeoutObject inner class in > > > GridCachePartitionExchangeManager. I cannot recall any cases when this > > > exchange would be needed from the top of my head, but it looks like you > > > need to do some investigation and code digging to check whether the > > > background exchange can be indeed safely removed :) > > > > > > > Alexey, I actually think that this ticket is named wrongly. After looking > > at the description, it seems that Yakov is suggesting that we do not send > > the exchange message if there are no changes to the exchange. Perhaps, we > > should be still sending something indicating that no change happened, > > otherwise, other nodes will hang forever waiting for the exchange to > > complete. > > > > Am I wrong in my understanding? > > > > > > > > > > > > 2015-08-28 5:58 GMT-07:00 Gianfranco Murador <mura...@apache.org>: > > > > > > > Hi Igniters, > > > > I 'm starting to implement this patch: > > > > Can you tell me if there is already a convenient method to see if the > > > local > > > > cache was updated last time interval ? > > > > Regards, Gianfranco > > > > > > > > > > > > -- > > > > Gianfranco Murador > > > > Igniter and Software Engineer. > > > > > > > > > >
