What is the role of the namenode?
No Answer is Posted For this Question
Be the First to Post Answer
What are the features of Pseudo mode?
What is Identity reducer?
Can you explain record reader?
What do you mean by the NameNode High Availability in hadoop?
What are the important modes of hadoop?
How namenode handles data node failures?
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
Explain how can we check whether namenode is working or not?
What does secondary name-node means?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
what happens when namenode goes down during file read operation in hadoop?
What is the key difference between NameNode and DataNode in Hadoop?
Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)
Apache Spark (991)
Apache HBase (164)
Apache Flume (95)
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 (189)
Apache Avro (26)
Apache Presto (15)
Apache Tajo (26)
Hadoop General (407)