Akka in Action book review

I’ve started reading this book as a draft long before it was released. I’ve abandoned it for a while, but this fall it was finally released thus I no other excuse to finally finish reading it.

I need to confess that’s not the first Akka book I’ve read so far. By no means this book covers all the aspects of Akka (which is enormously huge, albeit allows you to write full fledged applications based only on itself). But it is THE BOOK I would recommend you to read if you’re interested in Akka right now. The book has been recently updated to reflect the latest changes in  http, persistence and some other modules. Taking into account how quickly does akka keep its pace I would say that after a while without constant updates (which took this book 4 years to get finished) this book could get outdated.

It has the bulk of the info you need to know about Akka to start working with it and get productive. Code that comes on its Github really works (which is rare for books’ code examples) and it can help you get your hands dirty in parts of the AKKA as quickly as possible.

My score is 4/5(I recommend to start reading it right now until it’s too late)



Author's profile picture Michael Koltsov on books and scala

Chelyabinsk town hall internet connectivity

Chelyabinsk is the heaven for those who’s looking for a free broadband connection, it has amazing Internet penetration.


Author's profile picture Michael Koltsov on life

Ljubljana castle internet connectivity

I’m looking forward to get to Slovenia once more

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Pinewood Hotel Rome Internet connectivity

Rome is a great place to roam, leave your devices at home

Author's profile picture Michael Koltsov on life

Porton Biondi Camping@Rovinj, Istria, Croatia Internet connection

I haven’t realized that before, but checking your email on the beach is sooo convenient =)

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Moskva Belorusskaya railway station internet connectivity

Definitely, Moscow is one the best destination you’ll choose to download torrents =) 70 Mbps on a free public wifi network with 5Ghz connection!

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The most recent map with countries I’ve been to

Create your own visited countries map or check out the JavaScript Charts.
Author's profile picture Michael Koltsov on life

Scala in Depth book review

First things first. This book is 5 years old. FIVE YEARS! During this period of time Scala as a language has been evolving with a noticeable  speed.

Is it still relevant? Yes, it is. Apart from a few chapters that’s dedicated to Actors and collections this book still contains a lot of useful information for an avid Scala-newbie.

Am I kidding? Not really. The explanation of type classes that’s inside of this book is the best that I’ve ever seen.

Even if you don’t see a reason to read the book from cover to cover I would recommend  to skim through the “Type system” & “Using implicits” chapters. They’re highly comprehensive and will provide you with information that’ll definitely make your life as a Scala developer easier.

My score 4/5



Author's profile picture Michael Koltsov on books and scala

Track of the day: Fuzion festival performers’ mixes on Soundcloud


End of June: the same procedure as every year: On a former Russian military airfield. In the middle of nowhere in the fields of northern Germany. FUSION arises, the biggest holiday camp all over the nothern hemisphere! The motto: 4 days of ‘holiday communism’ – and the programme covers it all:

Music of all kinds, theatre, performance and cinema, and added in the whole spectrum of installations, interaction, arts and communication. Diversity of people, diverse in their intentions. Still, their strive for individual freedom unites them, everybody finding her and his own way of action. Free of boundaries and prejudice.

Author's profile picture Michael Koltsov on stuff

SBT in Action book review

Disclaimer: The book that I’ve read is the newest edition available at safari

I’m not even sure whom this book is dedicated to. If you’re a Scala developer then this book is too outdated due to that most of the APIs it explains are either deprecated of heavily rewritten. If you’re a DevOps… well, you don’t read books at all. You can definitely use it as a reference for some of the SBT commands, but there’re lots of  such references available on the Internet with convenient search by word as well as code examples.

You would definitely find another thing to spend your money on than buying this book.


My score: 2 stars

Author's profile picture Michael Koltsov on books and scala

Functional programming in Scala book review

This book has an outstanding goal – teaching FP principles to those who might have close to no experience with functional programming. I reckon that’s not doable during the coarse of a few hundred pages. Fortunately, this book delivers that what it has promised.

All the book’s materials are split into the chunks of textual information and exercises you’re encouraged to do in order to fully absorb all the meaningful information you might otherwise forget in a day.Since starting to read I understood a lot of concepts that previously I thought of as too complex for me which made my life a lot easier and my code better.

Unfortunately, I’ve found that the most important parts of the book were 5 first chapters as well as 3 last chapters. Besides these chapters I got lost trying to digest some of the concepts that this book has tried to teach me. Apparently that has something to do with the amount of exercises you need to complete to make a progress with this book. I’ve spent more than 2 months in reading and doing the book’s exercises, which was a real exhaustive experience and made me glad that finally I’ve finished this book without abandoning it due to frustration.

My score is 4/5. Authors need to grasp more teaching experience to make their book easier to comprehend and get rid of some useless exercises but keep all the important ones.


Author's profile picture Michael Koltsov on books and scala

Track of the week: Bibio – À tout à l’heure

Once again, drifting through melancholy.

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Track of week

Norwegian disco with an unbelievably beautiful ending. I’ve heard of it from a mix by Tycho from the lovely city of San Francisco.

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Pure nexus tribute

Pure Nexus was the best thing that has happened to my tablet & phone since the moment that I’ve rooted them. It retains the pure Nexus experience, but dissolves all the unnecessary crap that Google tends to install on its “flagman” phones.

After installing it memory consumption has significantly dropped as well as battery life improvement has been obtained. All the necessary widgets I got used to are already there pre-installed, so it has helped me to get rid of some stuff I was struggling to take with me on every phone (i. e. yahoo weather widget).


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Comprehensive IT job market research that spans across all countries

This thing  is one of the most awesome IT job market research I’ve ever seen. I can’t stand from not playing with it.chart

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