Un-Answered Questions { Apache Hadoop }

how to share the metastore within multiple users?

634


How do you define "block" in HDFS?

640


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

1063


What is Distributed Cache?

613


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

715


What is HDFS - Hadoop Distributed File System?

658


What are the most commonly defined input formats in Hadoop?

744


What does /var/hadoop/pids do?

954


What is the use of Combiner?

698


what is SPF?

1218


what are Task Tracker and Job Tracker?

709


On what basis name node distribute blocks across the data nodes?

770


Name some companies that use Hadoop?

691


Rack awareness of Namenode?

595


Have you ever used Counters in Hadoop. Give us an example scenario?

747