How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.
- 0 Answers
- 379 Views
- I also Faced
- E-Mail Answers
No Answer is Posted For this Question
Be the First to Post Answer
It can be possible that a Job has 0 reducers?
Explain slot in Hadoop Map-Reduce v1?
Explain what is the function of mapreduce partitioner?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
What is difference between an input split and hdfs block?
With the help of two examples name the map and reduce function purpose
What is the difference between an RDBMS and Hadoop?
Difference between mapreduce and spark
Explain job scheduling through JobTracker
how can you debug Hadoop code?
Is there any point of learning mapreduce, then?
-
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)
