Technological Geeks Video 13 :- Video Link :- https://youtu.be/mfLxxD4vjV0 FB page Link :- https://www.facebook.com/bitwsandeep/ Contents :- Hive Architecture Hive Components Limitations of Hive Hive data model Difference with traditional RDBMS Type system in Hive

1. Apache Hive
Tutorial
By Sandeep Patil

2. Contents
• Hive Architecture
• Hive Components
• Metastore
• Limitations of Hive
• Where to use Hive
• Differences with traditional RDBMS
• Type System
• Hive Data Model

3. Hive Architecture
CLI HWI Thrift Server
Driver MetaStore
HADOOP

4. Hive Components
• Shell
• Metastore
• Driver
• Compiler
• Execution Engine

5. Metastore
• Embedded metastore  Driver  MS Derby
Driver  MS
• Local Metastore MySql
Driver  MS
Driver MS
• Remote Metastore MySql
Driver MS

6. Limitations of Hive
• Not recommended for row level updates .
• Latency for Hive Queries is High
• Not designed for OLTP

7. Difference with
traditional RDBMS
• Schema on read vs Schema on Write

8. Type System
• Boolean :- true/false
• Integers :- TinyInt - 1 byte integer
SmallInt - 2 byte integer
INT - 4 byte integer
BigInt - 8 byte integer
• Floating point :- Float / Double
• String

9. Complex Types
• Struts
• Maps
• Array

10. Hive Data Models
• Database
• Table
• Partition
• Buckets or Clusters

11. Types of Table
• Internal Table
• External Table

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