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Is java necessary to learn Hadoop?

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Yes
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If you want start or learn hadoop development you must require java and basics of linux.
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BTech with 5+ years of Java web application development

Just Basics of oops concepts are sufficient nevertheless Strong knowledge on SQL would help a lot.
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Prefect Training

Hi, In place of java, if you have a knowledge on SQL that helps you Hadoop Ecosystem called hive, basic linux fundamentals and shell scripts.
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Tutor

In simple words, No. With Spark, you can do all the coding with help of scripting languages like Python which are way simpler to learn as compared to Java. Also, if you have SQL background, you can comfortably write your queries in Hive/Pig. -Regards
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IT Courses Trainer

Hi AROGYA, If you are looking Hadoop admin part then you don't need Java part. If you are looking developer then you need in Map Reduce, Spark and Scale part. If know well SQL, Shell and python then that is different story you can choose PIG, Hive and Hbase like some of eco systems. In real time companies... read more
Hi AROGYA, If you are looking Hadoop admin part then you don't need Java part. If you are looking developer then you need in Map Reduce, Spark and Scale part. If know well SQL, Shell and python then that is different story you can choose PIG, Hive and Hbase like some of eco systems. In real time companies go for only 3 or 4 Eco systems they won't use all eco systems in single company. Thanx Suresh read less
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Not necessary but recommended. You can learn hadoop using python also.
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Big Data Training Centre

There are different modules in HADOOP. One module called Map Reduce requires very basic Java knowledge. Otherwise in real time most of the people go with other modules where there is less coding & rapid application development.
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Hadoop is written in Java, thus knowledge of Java basics is essential to learn Hadoop.
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Tutor

Yes, If you want to become an Hadoop developer or contributor you must know the Java. In addition to that you must know the linux and networking knowledge for Hadoop administrator jobs.
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