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August 18th, 2016, ISSUE 131


How PayPal Scaled to Billions of Transactions Daily Using Just 8VMs

Another successful story of Akka and Scala adoption for a large system.
Todd Hoff (@highscal)
The Scala Ecosystem: Infographics

A useful chart with a list of tools.
Darío Carrasquel
August SIP Meeting Results

Another productive meeting. 2 old SIPs rejected (control syntax, macros), 2 active SIPs updated (commas, singleton types).
Scala SIP committee
Scaladoc has a new look

Enjoy the new look thanks to the efforts of @FelixMulder et al.
Scala contributors
UniCredit powers “Fast Data” customer-insight platform with Apache Spark, Scala, Akka and Play

How Scala helped to unlock the value in this massive quantity of data in order to understand the needs of future customers.
Lightbend (@lightbend)
Comparisons with Other Solutions — Monix

Looking for an alternative to Actors, Akka Streams or FS2 for concurrent data processing? Meet Monix.
Alexandru Nedelcu (@alexandru)
Leveraging Spark Speculation To Identify And Re-Schedule Slow Running Tasks

In this post, we’ll go through the speculation algorithm and see an example of how one can put it to good use.
Yuval Itzchakov (@YuvalItzchakov)
Cheat Codes for Contravariance and Covariance

A useful diagram that will help you master this concept once and for all.
Matt Handler (@matthandlersux)
shapeless-2.3.2 released

New operators, typeclasses and many more additions.
Shapeless contributors
Simply explained: Akka Streams Backpressure

Learn all about one of the most important features of Akka Streams.
Sujan Kapadia (@sujankapadia)


High Load Strategy Vilnius 2016 - Call for Papers

Apply if you'd like to speak on the 14th of October. CFP ends on the 31st of August.
Scala eXchange London 2016 - Call for Papers

Apply if you'd like to speak on the 8th/9th of Dec. Deadline for submission - September 2nd.
Scala eXchange (@scalaexchange)



This Scala compiler plug-in exposes a programming model to enforce a no-escape policy for certain objects.
scala-escape contributors


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  1. Scala Times Issue #131

    How PayPal Scaled to Billions of Transactions Daily Using Just 8VMs. The Scala Ecosystem: Infographics. August SIP Meeting Results. Scaladoc has a new look. Comparisons with Other Solutions — Monix.

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