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Reference: Major Online Gaming Platform

Liferay Portal Performance Tuning Services

Introduction

K&C client, a major online gaming software supplier that offers cutting-edge value-added solutions to the industry's leading operators, decided to extend its in-house R&D team with a dedicated development team and build strong competence center for Liferay solutions.

K&C has been providing ongoing support to the client since 2012, helping to find more than 100 highly skilled professionals for multiple development projects. One of the featured projects was to improve the performance of the client’s online gaming platform.

Project highlights

40x
Improved portal performance by 40 times
20%
20% average CPU load under 400K rpm
10x
10x boost via using CDN

The Challenge

Consistent and reliable website performance is an important part of great user experience. For large online platforms with millions of users it is even more critical and poor response time is barely acceptable.

This mission became for the focus of our client’s business, as they needed to ensure accessibility and zero down-time for their major online gaming platform.
CLIENT'S REQUEST:
Keeping portal stable under high load, guarantee fast response time and
99 % success rate
during offline events
The application was built on Liferay, an open-source platform for developing collaboration portals. Being one of the most popular, high-performing and scalable technologies, it still required optimization of performance-specific processes in order to improve user experience.
Platform characteristics
100 000+ users
12 million transactions/hour
16 nodes in cluster
20x times more traffic during some offline gambling events

K&C approach

K&C applied its deep technical expertise to thoroughly understand client’s business needs and requirements, and find the most suitable solution. To define the project scope, we had to carry out a detailed evaluation of the existing app infrastructure:
  • Hardware assessment
  • Review of the deployment processes
  • Log files and configurations review
  • Existing software architecture analysis
  • Load testing and database/network/web page profiling
Assessment and review of hardware
Assess deployment processes
Analyze log files, configurations
Review software architecture
Load testing
Web Page
Database
Network

Profiling

Outcome

As a result of deep evaluation and analysis, we identified major gaps and dependences that caused an inappropriate web portal performance.

Solution

Based on our international experience, we've managed to achieve a considerable boost in performance without making significant changes in Liferay-based application:
A considerable boost in performance obtained without Liferay core changes

Load balancer/web server configuration for incoming requests

Serving static resources from a web server to reduce application server load

VM configuration for proper Garbage Collection policies and others

Application Server configuration – Apache Tomcat specifics for maximum performance

Database server tuning, settings up shards, read-write strategy

Liferay configuration – the ability to tune settings without custom code changes

Back-end solutions implemented

  • Liferay core modifications and different treatments
  • Liferay’s Search Engine Configuration – replacing internal Lucene with external Solr / ElasticSearch
  • Advanced CDN support
  • Cluster configuration, including JGroups tuning
  • Scaling and high availability
  • Application code profiling to find bottlenecks in custom portlets or extensions
  • Distributed cache replication configuration based on RabbitMQ message broker
  • Push notification system with RabbitMQ message broker
  • Gradle as a build tool

Front-end solutions implemented

  • Ultra-lightweight page size
  • Remastering of UI and themes to minimize page load time
  • Custom JS and CSS barebone bundles, sprites
  • Using browser Local Store for rare changes

Results

After having analyzed client’s web solution, processes and IT environment, and applying smart and intuitive load testing environment combined with deep Liferay’s core tuning, K&C managed to achieve great results.

Increase overall portal performance by 40 times

Preserve good service responsiveness during offline events

Achieve only 20% average CPU load under 400K rpm

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