How to resolve small file problem in hdfs?
Can Apache Kafka be used without Zookeeper?
What does the command mapred.job.tracker do?
What is a heartbeat in HDFS?
How you can contact your client everyday ?
What is the difference between hadoop and other data processing tools?
How to restart Namenode?
How to change replication factor of files already stored in HDFS?
What is Hadoop serialization?
What is difference between split and block in hadoop?
explain Metadata in Namenode?
Define a task tracker?
Explain the shuffle?