[HDDS-1856] Make changes required for Non-HA to use new HA code in OM.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: OM HA, Ozone Manager
• Labels: pull-request-available
• Target Version/s: 0.5.0
• Assignee: Bharat Viswanadham
• Reporter: Bharat Viswanadham
• Created: 24/Jul/19 21:28
• Updated: 04/Jun/20 20:16
• Resolved: 31/Jul/19 05:39

Description

In this Jira following things will be implemented:

1. Make the necessary changes for non-HA code path to use Cache and DoubleBuffer.

1. 1. When adding to double buffer, return future. This future will be used in the non-HA path to wait for this, and when it is completed return response to the client.
   2. Add to double-buffer will happen inside validateAndUpdateCache. In this way, in non-HA, when multiple RPC handler threads are calling preExecute and validateAndUpdateCache, the order inserted in to double buffer will happen in the order requests are received.

 

In this Jira, we shall not convert non-ha code path to use this, as security and acl work is not completed to use this new model.

 

 

Issue Links

• blocks: HDDS-1849 Implement S3 Complete MPU request to use Cache and DoubleBuffer
• links to: GitHub Pull Request #1166
• links to: GitHub Pull Request #1174