Interested to Buy Any Domain ? << Click Here >> for more details...
What is a IdentityMapper and IdentityReducer in MapReduce ?
- 0 Answers
- 899 Views
- I also Faced
- E-Mail Answers
No Answer is Posted For this Question
Be the First to Post Answer
More MapReduce Interview Questions
What MapReduce framework consists of?
what happens in textinformat ?
Is it necessary to write a mapreduce job in java?
What is a "reducer" in Hadoop?
How does Mappers run method works?
what is NameNode in Hadoop?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
Explain what you understand by speculative execution
What combiners are and when you should use a combiner in a mapreduce job?
What does conf.setmapper class do?
Whether the output of mapper or output of partitioner written on local disk?
When is the reducers are started in a MapReduce job?
Categories
-
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)
