How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
- 0 Answers
- 384 Views
- I also Faced
- E-Mail Answers
No Answer is Posted For this Question
Be the First to Post Answer
More MapReduce Interview Questions
In MapReduce Data Flow, when Combiner is called?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
What do sorting and shuffling do?
What is partitioner and its usage?
What is a "reducer" in Hadoop?
what are the basic parameters of a Mapper?
What is the role of a MapReduce partitioner?
In Hadoop, which file controls reporting in Hadoop?
Explain what is “map” and what is "reducer" in hadoop?
How does inputsplit in mapreduce determines the record boundaries correctly?
How do Hadoop MapReduce works?
What is the difference between Hadoop and RDBMS?
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)
