Explain what is speculative execution?
No Answer is Posted For this Question
Be the First to Post Answer
What is the difference between TextInputFormat and KeyValueInputFormat class?
Can you define udf?
Is there another way to check whether Namenode is working?
How often do you need to reformat the namenode?
What is High Availability feature in Hadoop2?
Which modes can Hadoop be run in? List a few features for each mode?
Why do we need hadoop for big data analytics?
Can you explain sequence file in hadoop?
Explain how can you check whether namenode is working beside using the jps command?
Can we write map reduce program in other than java programming language. How?
Can you explain record reader?
What are the core components of 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)