How often DataNode send heartbeat to NameNode in Hadoop?
No Answer is Posted For this Question
Be the First to Post Answer
Are job tracker and task trackers present in separate machines?
Mention what does the text input format do?
Can you define udf?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
What does hadoop-env.sh do?
What are the common types of NOSQL data bases ?
Why do we need Hadoop Archives? How is it created?
How job tracker schedules an assignment?
What do you think about the speculative execution?
Where are Hadoop’s configuration files located?
What does jps command do in Hadoop?
What is the difference between TextInputFormat and KeyValueInputFormat class?
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)