[HDDS-118] Introduce datanode container command dispatcher to syncronize various datanode commands

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.2.1
• Component/s: Ozone Datanode
• Assignee: Mukul Kumar Singh
• Reporter: Mukul Kumar Singh
• Created: 24/May/18 10:32
• Updated: 02/Jun/20 22:03
• Resolved: 02/Jun/20 22:03

Description

ContainerStateMachine provides mechanism to synchronize various container command operations. However with multiple protocol endpoints like. 1) Netty, 2) Grpc, 3) Ratis, 4) Heartbeat. It will be advisable to synchronize operations between multiple endpoints.

This jira proposes to introduce a single command executor to which the protocol endpoints will enqueue the command for execution. All the synchronization can be enforced by this executor therefore.