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- Apache Hadoop (387)
- MapReduce (351)
- Apache Hive (334)
- Apache Pig (225)
- Apache Spark (991)
- Apache HBase (164)
- Apache Flume (94)
- 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 (188)
- Apache Avro (26)
- Apache Presto (15)
- Apache Tajo (26)
- Hadoop General (406)
- Big Data General (101)
- Big Data AllOther (3)
Un-Answered Questions { Big Data }
What is the module in HDFS?
Tell me two most commonly used commands in HDFS?
What is a block in HDFS? what is the default size in Hadoop 1 and Hadoop 2? Can we change the block size?
HDFS is used for applications with large data sets, not why Many small files?
What is impala?
Why we need impala hadoop?
What is the maximum number of rows in a table?
Describe impala shell (impala-shell command)?
Can any impala query also be executed in hive?
State some advantages of impala?
Does impala use caching?
How are joins performed in impala?
What are distinct operators in impala?
What is troubleshooting for impala?
Can impala be used for complex event processing?
