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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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Writing Clean Tests – Beware of Magic

It is pretty hard to figure out a good definition for clean code because everyone of us has our own definition for the word clean. However, there is one definition which seems to be ...
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Hive: Query customer top search query and product views count using Apache Hive

This post covers to use Apache Hive to query the search clicks data stored under Hadoop. We will take examples to generate customer top search query and statistics on total product ...
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Step by Step Web Service guide

To learn more on web services let’s first understand the concept of the service oriented architecture.   What is Service Oriented Architecture? Service Oriented Architecture ...
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Flume: Gathering customer product search clicks data using Apache Flume

This post covers to use Apache flume to gather customer product search clicks and store the information using hadoop and elasticsearch sinks. The data may consist of different product ...
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Continuous Delivery: Static Analysis

This is the third article in the “Continuous Delivery” series. The CI Tools Setup ended with Jenkins up and running waiting for us to use it. Travis, on the other hand, was left ...
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How to develop an Android Weather app using Weatherlib

Some users asked to me some details on how to use the Weatherlib. In this post want to describe how to use it. This is an Android lib that helps to develop fast and  easily weather ...
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