Before diving into the comparison, let’s briefly understand what Hive servers are and their role in the Hive ecosystem.
HiveServer1
HiveServer1, often referred to as “Thrift Server,” was the initial version of Hive’s server component. It provided a means for clients to submit Hive queries and interact with the Hive database.
HiveServer2
HiveServer2, introduced as a significant improvement over HiveServer1, offers enhanced features, better security, and improved performance. It is the recommended choice for most Hive deployments.
Feature Comparison
1. Security
- HiveServer1: Limited security features, making it less suitable for environments with stringent security requirements.
- HiveServer2: Improved security with support for authentication and fine-grained access control through Apache Sentry or Apache Ranger. This makes HiveServer2 the preferred option for secure deployments.
2. Concurrency
- HiveServer1: Supports limited concurrency, which can lead to performance bottlenecks when multiple clients simultaneously access Hive.
- HiveServer2: Offers enhanced concurrency control, allowing for more efficient multi-user access to Hive resources. This results in better performance in high-demand environments.
3. Multi-Session Support
- HiveServer1: Limited support for handling multiple client sessions concurrently.
- HiveServer2: Designed to handle multiple client sessions efficiently, making it suitable for applications with high levels of concurrent usage.
4. Compatibility
- HiveServer1: Compatible with older Hive clients, but lacks support for some newer Hive features.
- HiveServer2: Designed to work seamlessly with both older and newer Hive clients, ensuring compatibility across the board.
Use Cases
When to Use HiveServer1
- Compatibility: HiveServer1 may be preferred in situations where compatibility with older Hive clients is crucial.
- Simple Environments: In simple, non-security-sensitive environments with low concurrency needs, HiveServer1 may suffice.
When to Use HiveServer2
- Security: For secure deployments where strong authentication and access control are essential, HiveServer2 is the recommended choice.
- Concurrency: In high-demand environments with multiple users and complex queries, HiveServer2’s improved concurrency support ensures better performance.
To illustrate the differences between HiveServer1 and HiveServer2, consider a scenario where a retail company wants to analyze its sales data stored in a Hive database. The company has a requirement for concurrent user access and stringent security measures.
Hive important pages to refer
