Hi Tom and Moiz Is it still the case with Beryllium and Boron that the read transactions from a follower are forwarded to the leader?
Thanks Srini. On Sat, Feb 28, 2015 at 8:26 AM, Tom Pantelis <[email protected]> wrote: > Colin, Tianzhu > > Reads are also forwarded to the leader so, yes, remote reads would take > longer. With IMDS, reads are actually synchronous so the returned Future is > immediate but with CDS, the read is async, whether it's local or not. So > it's best to not block on the Future as there will be some latency with > CDS, but rather use a Future callback if possible. > > Tom > > On Sat, Feb 28, 2015 at 10:42 AM, Colin Dixon <[email protected]> > wrote: > >> I'm cc'ing controller-dev since they will have the authoritative answer. >> >> I *think* the answer is that all data is replicated to all nodes in the >> cluster and so all reads can be local. Only writes have to go to the shard >> leader, but I could be wrong. >> >> Moiz and Tom Pantelis would know more. >> >> --Colin >> >> >> On Sat, Feb 28, 2015 at 4:55 AM, 我心永恒 <[email protected]> wrote: >> >>> Dear all, I am studying ODL and have one question: >>> >>> When a consumer launches a read transaction, if I'm not wrong, it has to >>> be forwarded to the primary shard controller. So if this case is possible >>> that the transaction is remote and the consumer has to wait longer since >>> the transaction is not local? >>> >>> Thanks & regards >>> Tianzhu >>> >>> >>> _______________________________________________ >>> documentation mailing list >>> [email protected] >>> https://lists.opendaylight.org/mailman/listinfo/documentation >>> >>> >> >> _______________________________________________ >> controller-dev mailing list >> [email protected] >> https://lists.opendaylight.org/mailman/listinfo/controller-dev >> >> > > _______________________________________________ > controller-dev mailing list > [email protected] > https://lists.opendaylight.org/mailman/listinfo/controller-dev > >
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