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Apache Hadoop Interview Questions
Questions Answers Views Company eMail

What should be the ideal replication factor in Hadoop Cluster?

2 3104

How can one increase replication factor to a desired value in Hadoop?

1120

What is a Record Reader in hadoop?

957

What is version-id mismatch error in hadoop?

1055

how to share the metastore within multiple users?

918

How do you define "block" in HDFS?

898

Where is the Mapper Output intermediate kay-value data stored ?

1352

What is Distributed Cache?

903

What problems have you faced when you are working on Hadoop code?

968

What is HDFS - Hadoop Distributed File System?

962

What are the most commonly defined input formats in Hadoop?

1058

What does /var/hadoop/pids do?

1264

What is the use of Combiner?

979

what is SPF?

1509

what are Task Tracker and Job Tracker?

1071


Post New Apache Hadoop Questions

Un-Answered Questions { Apache Hadoop }

How to exit the vi editor?

732


Name some companies that use Hadoop?

954


What is the communication channel between client and namenode/datanode?

1734


What is a Record Reader in hadoop?

957


did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1016


what is SPF?

1509


How Mapper is instantiated in a running job?

993


What do the master class and the output class do?

667


What is Derby database?

902


What is compute and Storage nodes?

1024


In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?

737


How blocks are distributed among all data nodes for a particular chunk of data?

1090


What is the difference between traditional RDBMS and Hadoop?

1170


What is hadoop framework?

719


What is version-id mismatch error in hadoop?

1055