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What platform and Java version is required to run Hadoop?
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Mention what is the hadoop mapreduce apis contract for a key and value class?
What is the difference between map and reduce?
What is Shuffling and Sorting in a MapReduce?
When is it not recommended to use MapReduce paradigm for large
What combiners is and when you should use a combiner in a MapReduce Job?
What is Distributed Cache in the MapReduce Framework?
Why do we need MapReduce during Pig programming?
How to write a custom partitioner for a Hadoop MapReduce job?
Whether the output of mapper or output of partitioner written on local disk?
Which Sorting algorithm is used in Hadoop MapReduce?
What is the job of blend () and repartition () in Map Reduce?
Explain combiners.
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Apache Hadoop (394) - MapReduce (354)
- Apache Hive (345)
- Apache Pig (225)
- Apache Spark (991)
- Apache HBase (164)
- Apache Flume (95)
- Apache Impala (72)
- Apache Cassandra (392)
- Apache Mahout (35)
- Apache Sqoop (82)
- Apache ZooKeeper (65)
- Apache Ambari (93)
- Apache HCatalog (34)
- Apache HDFS Hadoop Distributed File System (214)
- Apache Kafka (189)
- Apache Avro (26)
- Apache Presto (15)
- Apache Tajo (26)
- Hadoop General (407)
