Can you explain how do ‘map’ and ‘reduce’ work?

Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

Can you explain how do ‘map’ and ‘reduce’ work?

Question Posted / dawer husain

0 Answers
666 Views
I also Faced
E-Mail Answers

No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Apache Hadoop Interview Questions

How would you tackle counting words in several text documents?

Define a commodity hardware? Does commodity hardware include ram?

What does /var/hadoop/pids do?

What Mapper does?

What happens to job tracker when namenode is down?

What is a checkpoint?

What problems have you faced when you are working on Hadoop code?

Whats is distributed cache in hadoop?

What is crontab? Explain with suitable example?

How to keep HDFS cluster balanced?

What is Row Key?

Command to format the NameNode?

For more Apache Hadoop Interview Questions Click Here

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)