On Fri, Mar 18, 2016 at 11:09 AM, Filippo De Luca <[email protected]> wrote:
> Hi Patrick, what is the advantage of the UPD over TCP if we have to > develop the order and delivery reliability on top of that? > No, only order is needed. The current TCP solution is not reliable either, it can happily drop messages during Gating or if buffers overflow. Akka messaging was never reliable. Ordering is as simple as adding a sequence number and dropping out-of-order messages. UDP also allows us to get rid of the rather messy TCP connection management, like maintaining ordering *across* multiple TCP connections, the issues when two systems open TCP connections in both ways, idle timeouts to not grow n^2 connections in a cluster due to gossip, etc. > > The only scenario I see is the multicast, is it needed for akka-remoting? > Also we avoid congestion control which can be weird in TCP incast. We will need something else though but the design restrictions are not the same as for TCP (which is internet global). > > Cheers > > On 18 March 2016 at 09:46, Patrik Nordwall <[email protected]> > wrote: > >> Hi all, >> >> A quick update of the roadmap for Akka Remoting. Lightbend's core Akka >> team will be able to start working on a new implementation for Akka >> Remoting next sprint, which starts April 4. We will then start with >> describing the goals and overall design ideas and share with you. >> >> We are interested in something based on UDP, and Aeron >> <https://github.com/real-logic/Aeron> looks promising, but we have not >> decided anything yet. >> >> Do you think UDP is acceptable in most production environments? Of course >> we would implement the message ordering and "reliable" delivery on top. >> When is TCP required from an infrastructure perspective? >> >> Regarding the current Netty based implementation we would like to touch >> it as little as possible to avoid risks of introducing new bugs. Therefore >> we will not update to Netty 3. When we have a stable replacement the old >> implementation will be removed. >> >> We are looking forward to working on this important area, and community >> involvement is very much welcome. >> >> Cheers, >> Patrik >> >> On Thu, Mar 3, 2016 at 6:29 PM, Guido Medina <[email protected]> wrote: >> >>> In the meantime I can't stay idle so I started digging inside Netty 3 >>> and at the moment I'm using my own Netty 3.10.6.Final (Not release yet) >>> which replaces the Netty internal CHM (Was the one from JDK 5) >>> There is a PR which most likely will be on 3.10.6.Final so be watching, >>> I didn't bother to measure it, it should be slightly faster for JDK 7 or 8 >>> but if anyone is curious just take Netty branch 3.10 and add my PR: >>> >>> https://github.com/netty/netty/pull/4905 >>> >>> I wish I was a Scala expert, maybe in few months ;-) >>> >>> HTH, >>> >>> Guido. >>> >>> -- >>> >>>>>>>>>> Read the docs: http://akka.io/docs/ >>> >>>>>>>>>> Check the FAQ: >>> http://doc.akka.io/docs/akka/current/additional/faq.html >>> >>>>>>>>>> Search the archives: >>> https://groups.google.com/group/akka-user >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Akka User List" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/akka-user. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> >> Patrik Nordwall >> Akka Tech Lead >> Lightbend <http://www.lightbend.com/> - Reactive apps on the JVM >> Twitter: @patriknw >> >> [image: Lightbend] <http://www.lightbend.com/> >> >> -- >> >>>>>>>>>> Read the docs: http://akka.io/docs/ >> >>>>>>>>>> Check the FAQ: >> http://doc.akka.io/docs/akka/current/additional/faq.html >> >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user >> --- >> You received this message because you are subscribed to the Google Groups >> "Akka User List" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > > > [image: --] > Filippo De Luca > [image: http://]about.me/FilippoDeLuca > <http://about.me/FilippoDeLuca?promo=email_sig> > > > -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. 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