[IGNITE-12804] SQL: ConnectionManager refactoring

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8
• Fix Version/s: 2.9, 2.8.1
• Component/s: sql
• Assignee: Taras Ledkov
• Reporter: Taras Ledkov
• Created: 19/Mar/20 11:38
• Updated: 21/Apr/20 08:38
• Resolved: 03/Apr/20 08:56

Description

As of now ConnectionManager is a mess, really hard to understand. We should refactor it.

Also ThreadLocal connection is a root cause of complicated behavior of local queries & map queries.

I guess we have to use simple connection pool.
For better performance connection pools will be striped by Thread ID.

Issue Links

• links to: GitHub Pull Request #7569
• links to: TCBot