[HDDS-8333] ReplicationManager: Allow partial EC reconstruction if insufficient nodes available

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.0
• Labels: pull-request-available
• Assignee: Stephen O'Donnell
• Reporter: Stephen O'Donnell
• Created: 30/Mar/23 15:24
• Updated: 19/Apr/23 18:30
• Resolved: 18/Apr/23 08:51

Description

If an EC container is missing multiple indexes, and there are not enough nodes to recover all indexes, the process currently fails. It could be possible to recover some of the indexes and it will reduce the chances of data loss.

Therefore, if we cannot select enough nodes to recover all indexes, we should try to select enough nodes to recover N - 1 indexes, or N - 2, as recovering some of them is better than nothing.

Issue Links

• links to: GitHub Pull Request #4579