For the benefit of community, Please feel free to add/request anything that hasnt been covered. Please remember this is beginners guide and not a expert level documentation.

Hadoop

• /Flume : contains notes and examples of apache flume
• /Hive : contains notes and examples of apache hive
• /MySQL : code sample containing peices to create db, create table and load data in mysql
• /Sqoop : contains notes and examples of import/export using sqoop
• /spark : contains notes,documentation, sample example(s) of spark APIs

Hands-on :

• /exam : sample cca-175 exam questions and solutions (in solution branch)
• /problem1 - complex data structure handling using hive. (exposure to Hive,create table,LOAD,named_struct,struct)
• /problem2 - Stock data analysis. (exposure to : json file handing, SparkSQL,map,reduce,filter,join,groupByKey,keyBy,UDFs etc)
• /problem3 - MovieLens database analysis
• /problem4 - Lahman's baseball database analysis
• /problem5 - Hortonworks certification sample. Total 10 tasks .
• /Tweeter - Tweeter data analysis
• /problem6 - Retail database sample excercises

My Answers to few PySpark Questions on StackOverFlow : Link