Introduction to Hadoop

• HDFS Architecture
• MapReduce Flow Chart
• Combiner in Hadoop
• Hello world job
• Partitioner in Hadoop
• Why we need combiners in Hadoop
• Sqoop in Hadoop

• WhyPartitioner in MapRednce (Hadoop)
• How to load data into hive table in Hadoop
• Difference between Internal and External Table in Hadoop
• What is Oozie in Hadoop

• Hadoop distributed file system commands
• What is HIVE in Hadoop
• What is Hbase in Hadoop
• MapReduce Code
• Mapper Code
• What is Pig in Hadoop_
• Implementing Hello World Job(DriverCode)
• How to display Tables from RDBMS MySQL from Sqoop (Hadoop)
• Why we need Sqoop (Hadoop)
• How to display Database from RDBMS mysql for Sqoop (Hadoop)
• How to Import Tables from RDBMS MySQL from HDFS (Hadoop)

• How to export data from HDFS to RDBMS mysql (Hadoop)
• How to Import Part of the table from RDBMS mysql to HDFS (Hadoop)
• What are all the file input formats in hadoop (MapReduce)
• What types of key,value pairs will be generated, if our file format is TextInputFormat_
• What types of key,value pairs will be generated if our file formate is KeyValueTextInputFormat
• What are the XML files we are using in Hadoop
• What is importence of RecordReader in Hadoop
• Can we set required no of mappers and required no of reduers_ (Hadoop)