Hadoop Note 2: Introducing Hadoop

What is Hadoop

Two components plus projects

• Open-source data storage: HDFS(Hadoop File System)
• Precessing API: MapReduce
• Other projects/libraries: HBase, Hive, Pig, etc.

Hadoop Distributions

1. 1. Open Source
      • Apache Hadoop
   2. Commercial
      • Cloudera
      • Hortonworks
      • MapR
2. Cloud
   • • AWS
     • Windows Azure

    

Why Use Hadoop

• Cheaper: Scalues to petabytes or more
• Faster Parallel data processing
• Better Suited for particular type of ‘Big Data’

Hadoop Business Problems

• Rish modeling
• Customer churn analysis
• Recommendation engine
• Ad targeting
• Transactional analysis
• Treat analysis
• Search quality