Busting 10 Myths about Hadoop – Hadoop is still misunderstood by many BI professionals by Philip Russom.
Philip lists ten myths (with explanations in his post):
- Fact #1. Hadoop consists of multiple products.
- Fact #2. Hadoop is open source but available from vendors, too.
- Fact #3. Hadoop is an ecosystem, not a single product.
- Fact #4. HDFS is a file system, not a database management system (DBMS).
- Fact #5. Hive resembles SQL but is not standard SQL.
- Fact #6. Hadoop and MapReduce are related but don’t require each other.
- Fact #7. MapReduce provides control for analytics, not analytics per se.
- Fact #8. Hadoop is about data diversity, not just data volume.
- Fact #9. Hadoop complements a DW; it’s rarely a replacement.
- Fact #10. Hadoop enables many types of analytics, not just Web analytics.
If you are unclear on any of these points, please see Philip’s post. (And/or sign up for Hadoop training.)