[HBASE-12736] Let MetaScanner recycle a given Connection

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0, 1.1.0
• Component/s: Client
• Hadoop Flags: Reviewed
• Assignee: Jurriaan Mous
• Reporter: Jurriaan Mous
• Created: 20/Dec/14 14:06
• Updated: 06/Apr/18 17:55
• Resolved: 23/Dec/14 19:02

Description

It is very heavy to create a Connection on each meta scan. Connections create RpcClients, RpcClients create RPC connections and all cannot be recycled.

Tests with a lot of metascans are very heavy with the async client.

This issue is to make anything that uses metaScans reuse the same connection.