[IGNITE-15510] RaftGroupServiceImpl creates new ExecutorService for every instance

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha3
• Labels: ignite-3
• Assignee: Mirza Aliev
• Reporter: Mirza Aliev
• Reviewer: Aleksandr Polovtsev
• Created: 14/Sep/21 16:04
• Updated: 01/Oct/21 07:44
• Resolved: 01/Oct/21 07:44

Description

RaftGroupServiceImpl creates inside itself new ExecutorService for every instance, this is not efficient as far as we create RaftGroupServiceImpl for every partition, which means that we will face with memory problems when we try to create a lot of partitions.

It is proposed to use shared executor for RaftGroupServiceImpl

Issue Links

• is related to: IGNITE-15528 JRaft creates at least 4 threads for every raft group on a leader
• links to: GitHub Pull Request #340