Coherence SIG - Filtering 100M objects in cache

Today I was speaking on Coherence SIG event in London.

My topic was "Filtering 100M objects. What can go wrong?". It was a story of solving particular problem and obstacles we have encountered. One noticeable thing about this project - out team was using Performance Test Driven Development approach.

We have started with simplest solution, then were focusing on problem identified by testing.

Slide deck from presentation is below.

JVM deep dive at HighLoad++ 2013 (Moscow)

Today was speaking at HighLoad++ 2013 Moscow. I had two presentation covering deep internals of JVM. One about JIT compilation and other concerning pauseless garbage collection algorithms.

Slide decks are below (in Russian)

JIT-компиляция в виртуальной машине Java (HighLoad++ 2013)

Cборка мусора в Java без пауз (HighLoad++ 2013)

Performance Test Driven Development (CEE SECR 2013 Moscow)

Today I was speaking at CEE SECR 2013 at Moscow.

Below is a slide deck from presentation (in Russian)

Performance Test Driven Development

Coherence SIG: Performance Test Driven Development

Today was speaking at Oracle Coherence SIG at London.

Below you can find slide deck from my presentation.

http://www.slideshare.net/aragozin/coherence-sig-performance-test-driven-development

Slides from JavaOne Russia

Below are slidedecks (in russian) from two my presentation on JavaOne Russia this year.

Борьба с GС паузами в JVM. Теория и практика

http://www.slideshare.net/aragozin/g-19935502

Распределённый кэш или хранилище данных. Что выбрать?

http://www.slideshare.net/aragozin/ss-19934802

Upcomming tech meetups in Moscow

Here is announcing of upcoming tech meetups in Moscow.

Уже больше года я занимаюсь организацией встреч посвящённых IT тематике. Отрадно видеть, что и мест готовых предоставить нам крышу, так и докладчиков, становится больше.

Ниже список ближайших запланированных встреч.

• Март 14 – Встреча пользователей Oracle Coherence – один из создателей Coherence удалённо выступит для нас с докладом.
• Март 28 – И снова деплоймент – обсудим проблему на примере развёртывания OpenStack.
• Апрель 18 – Магия виртуальных машин – Python, Erlang, Ruby, JavaScript  - что мы знаем про виртуальные машины для этих языков?
• Май 16 – Сборка мусора в Java - возвращаемся к вечной теме, как изменилось положение дел за последний год? Так же будет организована видео трансляция. Дата предварительная.

Так же, приглашаю вас, присоединится к нашей группе на meetup.com

Tech talk at DUMP IT (Ekaterinburg), Garbage collection in JVM

Today I was speaking at Ekaterinburg at DUMP-IT.
Below are slides from presentation (in russian).

Tech talk at CloudCamp Moscow, HPC - could point of view

Today I was speaking at CloudCamp Moscow.
Below is slidedeck.

Tech talk at RIT++ Moscow, Open source search solutions

Today I was speaking at RIT++ at Moscow.
Below are slides at russian.

Coherence SIG: Advanced usage of indexes

Another my presentation Coherence SIG, this time from London.
Main theme of presentation was internal mechanics of indexes in Coherence. How indexes are stored, how queries are executed, how create custom filters and indexes - all these topics were covered.

Tech talk at Highload++ Moscow, Secret of garbage collection in Java

Today I was speaking at Highload++ conference at Moscow.
Below is slide deck in russian.

TechTalk: Garbage collection in Java, Mocow, Oct 13

If you happen to be in Moscow, I'm glad to invite you on my tech talk about GC tunning in JVM.
Event will occur 13 Oct at 19:00, language is russian.

UPDATE
Below are slides from event (in english).

TechTalk: Garbage collection in Java

Today I was speaking about Java garbage collection and tuning JVM for short pauses on large heaps at one of major web/social players in Russia.

Below is slide deck (in english)

Coherence SIG: Using Oracle Coherence to Enable Database Partitioning and DC Level Fault Tolerance

Today I was speaking at Coherence SIG in New York.
Update: 21 July I was speaking in BA Coherence SIG, slide deck is slightly updated

Partitioning is a very powerful technique for scaling database centric applications. One tricky part of partitioned architecture is routing of requests to the right database. The routing layer (routing table) should know the right database instance for each attribute which may be used for routing (e.g. account id, login, email, etc): it should be fast, it should fault tolerant and it should scale. All the above makes Oracle Coherence a natural choice for implementing such routing tables in partitioned architectures. This presentation will cover synchronization of the grid with multiple databases, conflict resolution, cross cluster replication and other aspects related to implementing robust partitioned architecture. 

RIT Conf 2010 (Moscow Internet conference)

Today I had a speach in РИТ++ 2010 - Moscow Internet conference.
Below is slide deck in russian.

Alexey Ragozin Ritconf Seda Ru

View more presentations from rit2010

Oracle Coherence in billing (Oracle day Moscow 2009)

Below is my slide deck from presentation at Oracle day Moscow 2009.
Slides are in russian.

Coherence in billing (Oracle day Moscow 2009)

View more presentations from aragozin.