On Tue, May 5, 2015 at 12:41 PM, Chanan Braunstein < [email protected]> wrote:
> Hi Patrik, > > No I haven't tried that approach yet. Will ClusterSharding know which > nodes have the Persistent actors on them and which the views. I assumed > that I need to tell ClusterSharding which nodes have what. But, I can try > it and see how goes. > I thought you used different typeName for those different things. Otherwise you will have a problem in the backend anyway. > > On a similar matter, any chance you can tell me why my replies are > disappearing from the backend? > https://groups.google.com/forum/#!topic/akka-user/iXWVGlEWo50 > > On Tuesday, May 5, 2015 at 4:24:18 AM UTC-4, Patrik Nordwall wrote: > >> >> >> On Mon, May 4, 2015 at 1:01 PM, Chanan Braunstein < >> [email protected]> wrote: >> >>> Sorry, I didn't explain it correctly. I have 3 roles not two. >>> >>> Frontend >>> >>> Command (Backend insert of data with Persistent Actors) >>> Query (Backend query with views) >>> >> >> I guessed so. >> >> >>> >>> So, for now, sounds like my strategy of having three ActorSystems on the >>> front end (Application, Command, Query) is the way to go till 2.4 comes out >>> when I will change it to use the roles in the ShardRegion itself. >>> >> >> Have you tried to use one ActorSystem in the Frontend and configure it >> with >> akka.contrib.cluster.sharding.role=DOES_NOT_EXIST >> ? >> >> I think that should just solve it, unless have done a mistake in my >> thinking of how this works. >> >> /Patrik >> >> >>> >>> Now if I can only figure out why my replies from the query cluster are >>> disappearing... >>> https://groups.google.com/forum/#!topic/akka-user/iXWVGlEWo50 >>> >>> Chanan. >>> >>> On Monday, May 4, 2015 at 3:03:06 AM UTC-4, Patrik Nordwall wrote: >>> >>>> >>>> >>>> On Fri, May 1, 2015 at 1:19 PM, Chanan Braunstein < >>>> [email protected]> wrote: >>>> >>>>> Hi Patrik, >>>>> >>>>> What/where is the limited support for roles in 2.3, do you mean the >>>>> config option: akka.contrib.cluster.sharding.role ? >>>>> >>>>> If so, that would only work for one role type, right? >>>>> >>>> >>>> It is reading the role from >>>> configuration akka.contrib.cluster.sharding.role. >>>> It is possible to have different values of this on different nodes, >>>> e.g. use "Command" on some backend nodes and "Query" on some other nodes. >>>> The limitation is that you cannot have a node with several nodes, i.e. >>>> hosting shards for different roles. >>>> >>>> >>>>> >>>>> What I did for now till 2.4 comes out, please let me know if this is >>>>> not a good idea, is create two ActorSystems on the front end, one for each >>>>> role, so when I want to use a an actor from the "Command" role, I create >>>>> the ShardingRegion on that ActorSystem, and same for the "Query" role. >>>>> Does >>>>> that make sense for now? >>>>> >>>> >>>> That is a creative workaround, but I don't understand why that would be >>>> needed. In the frontend nodes you can >>>> configure akka.contrib.cluster.sharding.role to something else than >>>> FrontEnd (e.g. Command) and then those will start in proxy mode since the >>>> node does not satisfy the configured akka.contrib.cluster.sharding.role. >>>> >>>> /Patrik >>>> >>>> >>>>> >>>>> On Wednesday, April 29, 2015 at 11:34:23 AM UTC-4, Patrik Nordwall >>>>> wrote: >>>>>> >>>>>> >>>>>> >>>>>> On Wed, Apr 29, 2015 at 3:08 PM, Chanan Braunstein < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> Thanks Konrad, I will wait till 2.4. >>>>>>> >>>>>>> However, thinking about this a bit more adding cluster roles only >>>>>>> solves half the problem. The other issue is that I need to have the >>>>>>> actor >>>>>>> class on the "local" machine to get a ClusterShard. What I would like >>>>>>> to do >>>>>>> is to implement CQRS/ES like this: >>>>>>> >>>>>>> Play servers (fronted by HAProxy) - Cluster Role: FrontEnd >>>>>>> >>>>>>> Akka cluster with Persistent actor - Cluster Role: Command >>>>>>> >>>>>>> Akka cluster with Persistent views - Cluster Role: Query >>>>>>> >>>>>>> Once cluster roles are in place, this will let me do this, however I >>>>>>> would still need the source code of the the two cluster to be on the >>>>>>> frontend because IU need the actor class on the front end. Really it is >>>>>>> not >>>>>>> need there it is only used by the two back end cluster, I hesitate to >>>>>>> say >>>>>>> this, but it might be better to give the class name as a string... Not >>>>>>> ideal either, but it will decouple the back end from the front end. >>>>>>> >>>>>> >>>>>> I'm not sure I understand the problem, but would like to mention that >>>>>> the entryProps is optional, i.e. you can have sharding regions on front >>>>>> end >>>>>> nodes that only act as proxies. Also, there is some limited support for >>>>>> roles in cluster sharding in 2.3.x. >>>>>> >>>>>> /Patrik >>>>>> >>>>>> >>>>>>> >>>>>>> Chanan >>>>>>> >>>>>>> >>>>>>> On Wednesday, April 29, 2015 at 5:33:41 AM UTC-4, Akka Team wrote: >>>>>>>> >>>>>>>> Hello there, >>>>>>>> This new feature will be part of the 2.4.x release which we'll soon >>>>>>>> start working on to get over through the finish-line - no hard >>>>>>>> timeline for >>>>>>>> it but "soon" :-) >>>>>>>> If you need it back-ported to 2.3.x we can do this for our >>>>>>>> customers - in general new features are not added to maintanance >>>>>>>> relases. >>>>>>>> >>>>>>>> -- Konrad >>>>>>>> >>>>>>>> On Tue, Apr 28, 2015 at 6:33 PM, Chanan Braunstein < >>>>>>>> [email protected]> wrote: >>>>>>>> >>>>>>>>> Hello, >>>>>>>>> >>>>>>>>> It looks like this is currently no way to specify a role for a >>>>>>>>> ClusterShard to be on in the cluster. There is a pull request that was >>>>>>>>> merged in Oct 2014 that adds roles to ClusterShards: >>>>>>>>> >>>>>>>>> https://github.com/akka/akka/issues/16123 >>>>>>>>> >>>>>>>>> Will that be in the point release of Akka, and if so, is there a >>>>>>>>> date for that? >>>>>>>>> >>>>>>>>> Thanks, >>>>>>>>> Chanan >>>>>>>>> >>>>>>>>> -- >>>>>>>>> >>>>>>>>>> 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 http://groups.google.com/group/akka-user. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Akka Team >>>>>>>> Typesafe - Reactive apps on the JVM >>>>>>>> Blog: letitcrash.com >>>>>>>> Twitter: @akkateam >>>>>>>> >>>>>>> -- >>>>>>> >>>>>>>>>> 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 http://groups.google.com/group/akka-user. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> >>>>>> Patrik Nordwall >>>>>> Typesafe <http://typesafe.com/> - Reactive apps on the JVM >>>>>> Twitter: @patriknw >>>>>> >>>>>> -- >>>>> >>>>>>>>>> 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 http://groups.google.com/group/akka-user. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> >>>> >>>> -- >>>> >>>> Patrik Nordwall >>>> Typesafe <http://typesafe.com/> - Reactive apps on the JVM >>>> Twitter: @patriknw >>>> >>>> -- >>> >>>>>>>>>> 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 http://groups.google.com/group/akka-user. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> >> Patrik Nordwall >> Typesafe <http://typesafe.com/> - Reactive apps on the JVM >> Twitter: @patriknw >> >> -- > >>>>>>>>>> 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 http://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- Patrik Nordwall Typesafe <http://typesafe.com/> - Reactive apps on the JVM Twitter: @patriknw -- >>>>>>>>>> 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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