What is Hadoop in big data?

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in simple words .. in agriculture different crops available ... each crop used for different purpose. let eg in agriculture apple, rice, chilli, mango .. like this many crops available, here agriculture is not a crop name. similarly bigdata is a one buzzword to recognize bigdata problems. If you face...
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in simple words ..in agriculture different crops available ... each crop used for different purpose. let eg in agriculture apple, rice, chilli, mango ..like this many crops available, here agriculture is not a crop name.similarly bigdata is a one buzzword to recognize bigdata problems. If you face any problem due to data increase, that problem called bigdata problem.. that concept called bigdata.. Now in this bigdata to solve bigdata problems bigdata use different frameworks like hadoop, spark, hive, pig, sqoop, flink, .. like that .. here Hadoop solve store and processing problems (process not well matured thats y spark came into picture). do Hadoop solve storage problems..bigdata use this hadoopto solve bigdata problems.i think cleared. read less
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Is there a list of the world's largest Hadoop clusters on the web?
No . As pf now Yahoo has tested with 5000 nodes . but there is no such information .
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Nishant
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What are the biggest pain points with Hadoop?
The biggest pain points with Hadoop are its complexity in setup and maintenance, slow processing due to disk I/O, high resource consumption, and difficulty in handling real-time data.
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Anish
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Hi... I am working as linux admin from last 2 yr. Now I want to peruse my career in Big Data hadoop. Please let me know what are opportunities for me and is my experience considerable and what are the challenges.
Hi Vinay, My friend moved from Linux admin to Handoop admin role with very good jump in his career. Definitely it is good move to jump to Hadoop from Linux Admin. Linux Admin market is tough as many...
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Vinay Buram
Which Hadoop course should I take?
Take apache spark and scala course . Spark is high on demand now and one of the highly efficient and heavily used bigdata tools in market.I do provide Apache spark with scala and python course . You can reach me out for more details
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Srinivasan
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What is the purpose of RecordReader in Hadoop?
RecordReader converts input splits into key-value pairs for the Mapper.
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Malvika
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