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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)
Whether the output of mapper or output of partitioner written on local disk?
Difference between external table and internal table in HIVE ?
What are the similarities and differences between Apache Flume and Apache Kafka?
What are the data types of Pig Latin?
What is a secondary namenode?
Are there any problems which can only be solved by MapReduce and cannot be solved by PIG? In which kind of scenarios MR jobs will be more useful than PIG?
Why hbase is a schema-less database?
Can multiple clients write into an HDFS file concurrently in hadoop?
What is partitioning?
What are different tombstone markers in hbase?
What database are supported by Hive?
Replication causes data redundancy then why is is pursued in HDFS?
How is impala metadata managed?
State some advantages of impala?
What is the default replication factor and how will you change it?
