Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?
No Answer is Posted For this Question
Be the First to Post Answer
What do you mean by the NameNode High Availability in hadoop?
What sorts of actions does the job tracker process perform?
Explain some important features of hadoop?
What happens in text format?
Which port does SSH work on?
What is a commodity hardware? Does commodity hardware include RAM?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
What are the functionalities of jobtracer?
What are the most common OutputFormat in Hadoop?
What happens if the number of reducers is 0 in Hadoop?
What is JobTracker?
what happens when namenode goes down during file read operation 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)