[HDDS-5832] EC: ECKeyOutputStream persists blocks in random order

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: EC-Branch
• Component/s: Ozone Client
• Labels: pull-request-available
• Target Version/s: EC-Branch
• Assignee: Stephen O'Donnell
• Reporter: Stephen O'Donnell
• Created: 06/Oct/21 16:28
• Updated: 07/Oct/21 23:41
• Resolved: 07/Oct/21 23:35

Description

When the blocks for an ECKeyOutputStream are persisted in OM, they are in a random order, which means the data cannot be read back successfully later.

This is because they are stored into a HashMap which does not iterate in insertion order. Instead we need to use a LinkedHashMap.

Issue Links

• links to: GitHub Pull Request #2717