Which one is better: Hadoop or Spark?

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Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

Depends on use case. Hadoop for batch processing, Spark for real-time and analytics.
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Spark has been found to run 100 times faster in-memory, and 10 times faster on disk. It's also been used to sort 100 TB of data 3 times faster than Hadoop MapReduce on one-tenth of the machines. Spark has particularly been found to be faster on machine learning applications, such as Naive Bayes and...
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Spark has been found to run 100 times faster in-memory, and 10 times faster on disk. It's also been used to sort 100 TB of data 3 times faster than Hadoop MapReduce on one-tenth of the machines. Spark has particularly been found to be faster on machine learning applications, such as Naive Bayes and k-means. read less
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Related Questions

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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Is it worth to switch from manual testing to Hadoop?
Yes..Here you can n build your career easily .it is good time to switch into hadoop . You should learn with some realtime experience.after learning u can work into analytics or testing also.programming...
Aditi
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Can anyone suggest about Hadoop?
Hadoop is good but it depends on your experience. If you don't know basic java, linux, shell scripting. Hadoop is not beneficial for you.
Ajay
I want to pursue career in Data Analyst i.e. Hadoop, currently working in testing professional from last 4 year. Please let me know what�s the opportunity and is my work experience is considerable in Hadoop. Also let me know what need to be prepare for that. Please guide me. Thanks in advance.
Sachin, YEs your work experience will consider as total IT experience. But you need to prepare BigData Hadoop analytic from scratch(start-to end). That means you need to know Hadoop as BigData Hadoop developer...
Sachin
What is the purpose of RecordReader in Hadoop?
RecordReader converts input splits into key-value pairs for the Mapper.
Malvika
0 0
6

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