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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)
What is inputformat in hadoop?
Explain how Hive Deserialize and serialize the data?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
What do you mean by ss table and explain how it is different from the other original tables?
What is the default replication factor?
Explain how mapreduce works.
Illustrate a simple example of the working of MapReduce.
What does the high availability of a name-node means? How is it accomplished?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
Explain about the different channel types in Flume.
What is lazy evaluation in Spark?
Mention what is the best way to copy files between hdfs clusters?
What is the difference between external table and managed table?
What is JMX?
How to skip header rows from a table in Hive?
