[akka-user] Re: Help with exception with Slick JDBC connector for MS SQL Server

2017-11-13 Thread lutzh
It doesn't really match the error message, but your "driver" entry looks a bit off to me - shouldn't that just be the driver class name? I think the ";databaseName=" would be attached to the URL part, not the driver. And the 3 before the ";", I don't know.. On Monday, November 13, 2017 at

Re: [akka-user] Detecting, in a sharded, persistent, passivated actor, that no messages are being received.

2017-11-12 Thread lutzh
if deadline exceeded. > > /Patrik > > lör 11 nov. 2017 kl. 16:52 skrev lutzh <lutz.h...@gmail.com > >: > >> Hi mailing list, >> >> I was wondering if anyone had some good ideas about this. Say I have an >> actor that receives data from some sensor

[akka-user] Re: Unable to run sample project on Akka Distribute data

2017-11-11 Thread lutzh
I think the samples just aren't meant to be run like that, i.e. the message is right, there is no runnable class. You can still study the source code, and you can run the multi-node tests by entering: > multi-jvm:test Hth, Lutz Am Montag, 6. November 2017 18:00:07 UTC+1 schrieb Nagaraju

Re: [akka-user] Performance of Akka-Http 2.5.4

2017-11-11 Thread lutzh
Hi Michael, Don't throw out Akka HTTP just yet, do your own measurements first. With maybe the exception of high frequency trading, I think you'll be ok... Am Freitag, 10. November 2017 13:32:14 UTC+1 schrieb Michael Zhong: > > That's awful, I've recently start using akka-http to write some

Re: [akka-user] Performance of Akka-Http 2.5.4

2017-11-11 Thread lutzh
Hi Jakub, I can't download the zip file (I*m using the web interface, it tells me "The requested document, benchmark.zip (0x38bdd40db96ca part 0.1), could not be found: DOCID_NOT_FOUND") Could you maybe share the sources on Github, Bitbucket or the likes? Thanks, Lutz Am Freitag, 11.

[akka-user] Detecting, in a sharded, persistent, passivated actor, that no messages are being received.

2017-11-11 Thread lutzh
Hi mailing list, I was wondering if anyone had some good ideas about this. Say I have an actor that receives data from some sensor, once an hour. I'm using Akka Cluster Sharding and Akka Persistence. So the message arrives, Akka will take care of restoring the actor state, processing the

Re: [akka-user] How do people handle "delayed" events in eventsByTag in Cassandra?

2017-10-11 Thread lutzh
wrote: > > Hi Lutz, > > On Tue, Oct 10, 2017 at 11:33 AM, lutzh <lutz.h...@gmail.com > > wrote: > >> >> eventsByTag in the CassandraReadJournal uses a materialized view to read >> the events. It can be configured to ignore the latest events (events >&

[akka-user] How do people handle "delayed" events in eventsByTag in Cassandra?

2017-10-10 Thread lutzh
eventsByTag in the CassandraReadJournal uses a materialized view to read the events. It can be configured to ignore the latest events (events younger than "eventual-consistency-delay") to give the materialized view some time to converge. This seems to work well enough for most cases, if the "

[akka-user] Re: ServiceRegistry implementation with Distributed Data

2017-03-25 Thread lutzh
ilable anywhere? > > On Friday, 24 March 2017 16:53:59 UTC+5:30, lutzh wrote: >> >> >> > I am interested in knowing if Distributed Data for Service Locator is >> used in any of the projects you know of, and to know any lessons learnt. >> >> There's a

[akka-user] Re: ServiceRegistry implementation with Distributed Data

2017-03-24 Thread lutzh
> I am interested in knowing if Distributed Data for Service Locator is used in any of the projects you know of, and to know any lessons learnt. There's a talk "Service Discovery with Akka Replicated Data" by Jeroen Gordijn that you might find interesting:

[akka-user] Re: Akka persistence: can you use it as the main storage system for you application's data?

2017-02-01 Thread lutzh
On Tuesday, 31 January 2017 16:17:53 UTC+1, José González Gómez wrote: > > Hi! > > I've been reading about Akka persistence, and it seems the way to go to > persist data in a reactive application, using event sourcing and immutable > data models. I have no experience doing this, so I'd love to

[akka-user] Re: Akka Cluster, (micro)Services and Cluster Singleton

2017-01-26 Thread lutzh
, Lutz On Wednesday, 25 January 2017 17:08:50 UTC+1, Felipo Gonzale wrote: > > Hi lutzh, > > The idea about using the Cluster Singleton came as a way to "have a single > entry point to an external system". Right now the microservices(each > service is an akka cluster) expose

[akka-user] Re: ANNOUNCE: Akka 2.5-M1

2017-01-26 Thread lutzh
Sounds great, looking forward to trying out the δ-CRDTs. Kudos to the Akka team/contributors! On Thursday, 26 January 2017 10:37:37 UTC+1, Patrik Nordwall wrote: > > Dear hakkers, > > we—the Akka committers—proudly present the first development milestone for > Akka 2.5. Since the release of

[akka-user] Re: Akka Cluster, (micro)Services and Cluster Singleton

2017-01-25 Thread lutzh
Hi Felipo, >From what you describe, it doesn't sound like your, let's call it API gateway, needs to be a singleton, and I don't think a cluster singleton is "usually the way to go" for this. Why do you need it to be a singleton, resp. what benefit are you looking for? On Wednesday, 25

[akka-user] Re: I'm a freshman to Akka, please recommend me some useful learning material... Thanks a lot.

2017-01-19 Thread lutzh
I hear Akka in Action https://www.manning.com/books/akka-in-action is pretty good. Apparently you can read the first 3 chapters for free if you sign up for the newsletter on the Lightbend website: https://www.lightbend.com/resources/e-books Hope this helps, Lutz On Thursday, 19 January

[akka-user] Re: Is there something like VCache/acid-state for scala (using akka persistence/event sourcing)?

2017-01-18 Thread lutzh
I'm not familiar with these libraries, but a curious person... acid-state - how would you say it compares to Akka persistence, or event sourcing in general? To me it seems it tries to achieve exactly the same thing, only it calls the events functions and the journal the history log. vcache -

[akka-user] Re: Akka and Fibers: Any Plans?

2015-10-27 Thread lutzh
Hi Haddock, Fibers as such do not prevent you from blocking. Pretty much like in Akka, if you use blocking I/O you block the underlying thread, which is then of course not available for other fibers or actors. So async I/O it is. The fibers approach to it is to provide a FiberAsync wrapper,

[akka-user] Re: Akka and Fibers: Any Plans?

2015-10-27 Thread lutzh
o see 1st answer here: http://stackoverflow.com/questions/27734816/does-scala-offer-async-non-blocking-io-when-working-with-files) Am Dienstag, 27. Oktober 2015 14:15:43 UTC+1 schrieb Haddock: > > > > Am Dienstag, 27. Oktober 2015 11:24:21 UTC+1 schrieb lutzh: >> >> Hi

[akka-user] Re: Help desparately needed in motivating containerless deployment in mature enterprise

2015-05-08 Thread lutzh
Hi Jacobus, If you can look behind the somewhat provocative title, I think Eberhard Wolff gives a pretty comprehensive overview of why you should look beyond app servers in Java Application Servers Are Dead: http://jaxenter.com/java-application-servers-dead-1-111928.html