By Raymond Roestenburg
Akka is a Scala-based toolkit that simplifies constructing concurrent disbursed functions. excellent for high-volume purposes that have to scale speedily, Akka is a good starting place for event-driven platforms that are looking to scale elastically up and out on call for, either on multi-core processors and throughout server nodes.
Akka in motion is a complete instructional on construction message-oriented platforms utilizing Akka. The e-book takes a hands-on process, the place each one new proposal is via an instance that exhibits the way it works, the way to enforce the code, and the way to check it. Readers will discover a message-oriented event-driven program in Akka and likewise take on key concerns like the way to version immutable messages and area versions, and practice styles like occasion Sourcing, and CQRS. The ebook concludes with useful recommendation on the right way to track and customise a process outfitted with Akka.
Read Online or Download Akka in Action PDF
Best enterprise applications books
The program of knowledge Mining (DM) applied sciences has proven an explosive progress in more and more diversified parts of commercial, executive and technology. of an important company parts are finance, specifically in banks and insurance firms, and e-business, equivalent to net portals, e-commerce and advert administration prone. inspite of the shut courting among examine and perform in facts Mining, it's not effortless to discover info on the most vital concerns occupied with genuine global software of DM expertise, from company and knowledge knowing to review and deployment. Papers usually describe examine that used to be built with out bearing in mind constraints imposed by way of the motivating software. whilst those matters are taken under consideration, they're usually now not mentioned intimately as the paper needs to specialise in the strategy. for this reason wisdom that may be precious if you happen to want to observe a similar strategy on a similar challenge isn't shared. The papers during this booklet handle a few of these concerns. This publication is of curiosity not just to info Mining researchers and practitioners, but additionally to scholars who desire to have an concept of the sensible concerns enthusiastic about information Mining.
IOS Press is a world technology, technical and scientific writer of high quality books for teachers, scientists, and execs in all fields.
the various components we put up in:
-Databases and knowledge structures
-All elements of physics
-The wisdom economic climate
-Understanding and responding to terrorism
Offers transparent, concise guide and hands-on perform to assist you to commence utilizing this best-selling notice processing application.
The final word SAP ® person consultant is the fundamental instruction manual for all aspiring SAP pros. SAP grasp and skilled writer Rehan Zaidi has placed out an easy-to-follow, illustrated consultant that can assist you take your SAP abilities to the following point. At a time whilst SAP jobs are aggressive, you have to exceed expectancies.
Reap the benefits of all the most modern Dynamics CRM dashboard positive factors for visualizing your most crucial info at a look. know the way iFrames, chart customizations, complex WebResources and extra can increase your dashboards in Dynamics CRM by utilizing this booklet and e-book. A hugely sensible cookbook bursting with a number interesting task-based recipes for studying Microsoft Dynamics CRM 2011 Dashboards.
- Green IT: Reduce Your Information System's Environmental Impact While Adding to the Bottom Line
- So that's how! : timesavers, breakthroughs & everyday genius for 2007 Microsoft Office system
- Managing Humans: Biting and Humorous Tales of a Software Engineering Manager
- Service Life Cycle Tools and Technologies: Methods, Trends, and Advances
- Apache Hive Essentials
- Learning Informatica PowerCenter 9.x
Additional info for Akka in Action
Asynchronicity - Actors are meant to be run in parallel on several threads. Multi-threaded tests are more difficult than single-threaded tests and require concurrency primitives like locks, latches and barriers to synchronize results from various actors. Exactly the kind of thing we wanted to get a bit further away from. Incorrect usage of just one barrier can block a unit test which in turn halts the execution of a full test suite. Statelessness - An actor hides its internal state and does not allow access to this state.
This command also added a git remote with the name heroku to the git configuration. All we have to do now is make sure all changes are committed locally to the git repository. After that push the code to heroku with the following command: git push heroku master The above assumes that you committed any changes to your master branch. Heroku hooks into the git push process and identifies the code as a Scala App. It ©Manning Publications Co. We welcome reader comments about anything in the manuscript - other than typos and other simple mistakes.
This is it for the SilentActor types: single and multi threaded variants. Using these approaches, we can construct tests that are very familiar to most programmers: state changes can be inspected and asserted upon by leveraging a few tools in the TestKit. 2 SendingActor Example Returning to our ticketing example from Chapter 1, we need to test the fact that when we buy a Ticket to an Event , the count of available tickets is properly decremented. There's a Lakers vs Bulls game and we want to be able to support any number of requests for tickets.
Akka in Action by Raymond Roestenburg