[HDDS-2034] Async RATIS pipeline creation and destroy through heartbeat commands

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Labels: pull-request-available
• Assignee: Sammi Chen
• Reporter: Sammi Chen
• Created: 26/Aug/19 06:51
• Updated: 24/Feb/20 20:52
• Resolved: 28/Nov/19 09:07

Description

Currently, pipeline creation and destroy are synchronous operations. SCM directly connect to each datanode of the pipeline through gRPC channel to create the pipeline to destroy the pipeline.
This task is to remove the gRPC channel, send pipeline creation and destroy action through heartbeat command to each datanode.

Issue Links

• breaks: HDDS-2508 Fix TestDeadNodeHandler
• causes: HDDS-2497 SafeMode check should allow key creation on single node pipeline when replication factor is 1
• causes: HDDS-2540 Fix accepetance test failure introduced by wait_for_safemode_exit
• duplicates: HDDS-2099 Refactor to create pipeline via DN heartbeat response
• is related to: HDDS-1570 Refactor heartbeat reports to report all the pipelines that are open
• is related to: HDDS-1564 Ozone multi-raft support
• links to: GitHub Pull Request #29
• links to: GitHub Pull Request #202
• links to: GitHub Pull Request #249
• links to: GitHub Pull Request #1469
• links to: GitHub Pull Request #1650