How can I develop and execute a Map Reduce on Hadoop?

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To process the huge volume of data in Hadoop cluster MapReduce framework is used. MapReduce is a framework which is written in Java. To get meaningful information from the data you have to write code in terms of map and reduce logic. Map phase performed parallelly on different nodes where as reduce phase...
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To process the huge volume of data in Hadoop cluster MapReduce framework is used. MapReduce is a framework which is written in Java. To get meaningful information from the data you have to write code in terms of map and reduce logic. Map phase performed parallelly on different nodes where as reduce phase aggregates the output from different map phase. Map and Reduce phase is driven by the Driver code. MapReduce code can be written in Java, C++, Ruby, and Python. I am a Hortonworks certified Hadoop Developer. http://bcert.me/swfssczm read less
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I want to take online classes on database/ ETL testing.

 

Also i look forward to teach Mathematics/Science for class X-XII

Both are co-related to each other but compare to DBA Jobs, ETL job is more demanding hence you take class for informatica tools and others.
Varsha
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how much time will take to learn Big data development course and what are the prerequisites
weekdays 4 weeks and weekend 5 weeks.it is 30 hours duration
Venkat
Which is easy to learn for a fresher Hadoop or cloud computing?
Hadoop is completely easy . You can learn Hadoop along with other ecosystem also . If you need any support then feel free contact me on this . i can help you to lean Hadoop in very simple manner .
Praveen
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