[HDDS-8172] ECUnderReplicationHandler should consider commands already sent when processing the container

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.0
• Component/s: SCM
• Labels: pull-request-available
• Assignee: Stephen O'Donnell
• Reporter: Arun Sarin
• Created: 15/Mar/23 18:38
• Updated: 21/Mar/23 20:37
• Resolved: 21/Mar/23 20:37

Description

For an EC container which has 2 replicas for the same index, with one decommissioning and one in_maintenance, the decommission logic in ECUnderReplicationHandler can send a command for the replica, and then the maintenance logic can send another replication command for the same container to a different target. If they both succeed it will likely result in over replication.

To solve this, we probably need to adjust the pending ops between each stage of the processing, so as then the maintenance logic would be "fixed by pending" and avoid sending the second command.

Issue Links

• links to: GitHub Pull Request #4435