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Simple tips to secure Android app

Android has security features built into the operating system that significantly reduce the frequency and impact of application security issues but as application developer, its our ...
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Using Git

Using Git When it comes to Software Version/Configuration Management, there might be a whole lot of vendor or open source implementations to choose from but in recent years, there’s ...
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Java 8 Friday: Better Exceptions

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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ElasticSearch-Hadoop: Indexing product views count and customer top search query from Hadoop to ElasticSearch

This post covers to use ElasticSearch-Hadoop to read data from Hadoop system and index that in ElasticSearch. The functionality it covers is to index product views count and top search ...
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GitHub vs. Bitbucket: It’s More Than Just Features

Let’s go back to 2005 when Bitkeeper, host of the Linux kernel project back then, pulled the trigger and changed its core policies around pricing. The kernel’s license was an especially ...
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How to build Java based cloud application

Recently, we were tasked to develop a SAAS application for big data analysis. To do data mining, the system need to store multi billion public posts in the database and run the classification ...
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Why use SerialVersionUID inside Serializable class in Java

Serialization and SerialVersionUID is always remains a puzzle for many Java developers. I often see questions like what is this SerialVersionUID, or what will happen if I don’t ...
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MySQL Transaction Isolation Levels and Locks

Recently, an application that my team was working on encountered problems with a MySQL deadlock situation and it took us some time to figure out the reasons behind it. This application ...
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See Your Solr Cache Sizes: Eclipse Memory Analyzer

Solr uses different caches to prevent too much IO access and calculations during requests. When indexing doesn’t happen too frequently you can get huge performance gains by employing ...
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Integration Tests for External Services

Our systems often depend on 3rd party services (They may even be services internal to the company that we have no control on). Such services include Social Networks exposing APIs, SaaS ...
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