[akka-user] Re: DDD/Event Sourcing and Business experts

2014-09-11 Thread Prakhyat Mallikarjun
Hi Vaughn, Thanks again for your insight. Your explanation clarifies a lot. -Prakhyat M M On Thursday, 11 September 2014 12:18:35 UTC+5:30, Vaughn Vernon wrote: Events first keeps you strictly on business process, which is how the business thinks. Typically focusing on aggregates first can

Re: [akka-user] Re: DistributedPubSubExtension and the Distributed Workers tutorial

2014-09-11 Thread remigius . stalder
Hi Viktor, Although this thread's activities seem to be gone for a while, I allow myself to post a question/suggestion here. My use case: I'm looking for a pub-sub mechanism that will allow distributed data updates on clients that belong to the same organization. There might be hundreds or

[akka-user] What is shard resolver

2014-09-11 Thread Prakhyat Mallikarjun
Team, I read cluster sharding many time http://doc.akka.io/docs/akka/2.3-M2/contrib/cluster-sharding.html. I understand the idExtractor, used to pick the actor entries. But did not understand in detail shardResolver. What is the difference between ShardRegion(not sharding region) and Shard.

[akka-user] Re: What is shard resolver

2014-09-11 Thread Michael Pisula
Note the sentence: As a rule of thumb, the number of shards should be a factor ten greater than the planned maximum number of cluster nodes. Thus one cluster node can contain several shards. A shard is basically a container for a group of entries that can be transferred between cluster nodes as

Re: [akka-user] Manifest Event Sourcing Application's Performance

2014-09-11 Thread Todd Nist
@Prakhyat, Would a tool lik http://kamon.io help you out with gathering stats for performance analysis. There is a good post here http://mukis.de/pages/monitoring-akka-with-kamon/ on using it with Akka and the docker container which provides Graphite(statsd backend), Grafana (Graphite

Re: [akka-user] Re: DistributedPubSubExtension and the Distributed Workers tutorial

2014-09-11 Thread √iktor Ҡlang
Hi R, Good questions! There are so many samples that we wish we'd have time to create and maintain, but alas, we also need to work on Akka itself. What Typesafe can help you with is consulting services to get your PoC up and running, let me know if that sounds worth exploring. Happy hAkking! On

[akka-user] Re: Reusing ActorSystem / Actor in the web, generating unique names.

2014-09-11 Thread prakash . prajapati
Hello All, First of all thanks for your prompt reply. Sorry but i am still having doubt because i am very new to AKKA. Right now we are running Web Application with 3 tier architecture [Actions Layer, Business Logic Layer, Data Access Object Layer]. So i need to use AKKA after my Business

Re: [akka-user] Re: Reusing ActorSystem / Actor in the web, generating unique names.

2014-09-11 Thread Piyush Mishra
Create a singleton object which contains actorsystem as a instance member and reuse this object across whole application. . On Thu, Sep 11, 2014 at 8:36 PM, prakash.prajap...@ivgroup.in wrote: Hello All, First of all thanks for your prompt reply. Sorry but i am still having doubt because

Re: [akka-user] Akka Cluster 2.3.4 nodes unable to reconnect to cluster

2014-09-11 Thread Joe Wong
Hi Patrik Thanks for the response. The downing of the nodes is done on the command line by calling the wrapper which I believe just kills the process. I did add #auto-down-unreachable-after = 10s because we were having issues with nodes leaving the cluster but that issue was our bad.

Re: [akka-user] Akka Cluster 2.3.4 nodes unable to reconnect to cluster

2014-09-11 Thread Patrik Nordwall
11 sep 2014 kl. 19:16 skrev Joe Wong jw...@adacado.com: Hi Patrik Thanks for the response. The downing of the nodes is done on the command line by calling the wrapper which I believe just kills the process. I was referring (in an unclear way) to downing of the akka cluster member,

[akka-user] Re: Implementation of fire and forget kind of webservice

2014-09-11 Thread jitendra shelar
Hi Olger, I am using playframework for my application development. Is spray suitable for playframework? If any documents, please let me know. Thanks, Jitendra -- Read the docs: http://akka.io/docs/ Check the FAQ: http://doc.akka.io/docs/akka/current/additional/faq.html

[akka-user] event sourcing: building external service based on generated events

2014-09-11 Thread Rune Barikmo
Hi guys, I'm building an event sourced application using akka persistence and I'm using a 1:1 setup with one persistent actor per aggregate. The next thing I want to implement is a notification service that consumes the events generated by the aggregate and notifies the users when specific

Re: [akka-user] Manifest Event Sourcing Application's Performance

2014-09-11 Thread Ivan Topolnjak
Prakhyat, for the record: Kamon does provide metrics on number of HTTP requests, average, min, max, counts per response status code and more, we don't have metrics for bytes transferred.. are you using Spray or Play for HTTP? we do support them! When we talk about Trace Metrics we talk about the

Re: [akka-user] Manifest Event Sourcing Application's Performance

2014-09-11 Thread Richard Rodseth
Not sure if this helps https://github.com/erikvanoosten/metrics-scala/blob/master/docs/Actors.md On Thu, Sep 11, 2014 at 3:48 PM, Ivan Topolnjak ivant...@gmail.com wrote: Prakhyat, for the record: Kamon does provide metrics on number of HTTP requests, average, min, max, counts per response