Can you explain combiner?
No Answer is Posted For this Question
Be the First to Post Answer
How does hadoop achieve fault tolerance?
How Big is ‘Big Data’?
What are 'slaves' and 'masters' in Hadoop?
Name the files which are used by the startup and shutdown commands?
What is TextInputFormat in Hadoop?
What is difference between reducer and combiner?
What is the job tracker role in hadoop?
Is it possible to provide multiple input to Hadoop? If yes then how?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
How to restart NameNode or all the daemons in Hadoop?
What are configuration files in Hadoop?
How can one write custom record reader?
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)