How to do ‘map’ and ‘reduce’ works?
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How ordering in hdfs is finished?
Can we deploy job tracker other than name node?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
What happen if a datanode loses network connection for a few minutes?
What the information segments utilized by hadoop are?
Can you explain textinformat?
What are the primary phases of the reducer?
Compare Hadoop and RDBMS?
What are the side data distribution techniques?
Comparison between Secondary NameNode and Checkpoint Node in Hadoop?
List out some common problems faced by data analyst?
What are the port numbers of task tracker?
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)