What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?73
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?49
What do the four V's of Big Data denote?
what does the text input format do?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What is the port number for NameNode
What can be optimum value for Reducer?
What is Hive query processor?
What is crontab? Explain with suitable example?
What is the main purpose of HDFS fsck command?
What are channel selectors?
How can you add the arbitrary key-value pairs in your mapper?
What is HDFS Federation?
Different running modes for running Pig?
what is difference between pig and sql?
What is the meaning of speculative execution in Hadoop? Why is it important?
Does Flume provide 100% reliability to the data flow?