Category Archives: Java

Creating Tomorrow

recommender.ir is the first and the only recommender as service in Iran. I developed it three years ago. It was around two years that recommender.ir was working and surprisingly, I was looking for a website which accepts using it! I … Continue reading

Posted in Big Data, Cloud Computing, Cluster, Java, Linux, Mac OS X, Machine Learning, Networking | 1 Comment

Running HDFS on an Ubuntu Cluster Hosted by VirtualBox

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Running Elasticsearch on a Virtualbox Cluster

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An Introduction to Apache Spark

I’ve prepared a short presentation on Apache Spark. I presented it yesterday morning. Just wanted to share it here as well.

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Trying Big-Data frameworks on your PC

As the first part of a 4 sessions workshop on distributed data processing, I will be speaking about setting up a Linux cluster on your PC.   Distributed Data Processing Workshop – SBU from Amir Sedighi

Posted in Big Data, Cloud Computing, Cluster, Java, Linux, Mac OS X, Networking, Software Engineering, Software Market Demands | 1 Comment

An Introduction to Elasticsearch

I just prepared a presentation on Elasticsearch.

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Elasticsearch Daily Indexing On Old Fashion Spinning Disks

I believe that, if it takes long, something is wrong. Regarding this minimalistic approach I’ve resolved something for one of my clients recently. There was a single node with an Elasticsearch instance running on. I had to keep it as … Continue reading

Posted in Big Data, Cloud Computing, Cluster, Java, Linux, Mac OS X, Networking, Open Source, Software Engineering, Software Market Demands | 4 Comments

Migrating From RDBMS to Document Store

A few months ago I joined a team as a Big-Data consultant. They had many issues with their log management system. The solution relied on an RDBMS centric architecture. They were facing a collection of issues such as run-time error, … Continue reading

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A Simple Spring Boot REST Wrapper over Hadoop and Hive

Running REST services in the Java world as much easy as Linux commands, has became possible by Spring Boot. I am making a data warehouse based on hadoop, sqoop, hive, hbase and a number of other big-data giants. It supposed … Continue reading

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Wrapping a Big Data warehouse platform by Spring/REST

Three months ago, my client just asked me to provide them a Hadoop based data warehouse platform. They had the experience of OLAP things and RDBMSs. Meantime they were working on a JavaScript based data visualizer.  The notified that they … Continue reading

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