[HDDS-6209] EC: [Forward compatibility issue] New client to older server could fail due to the unavailability for client default replication config

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: EC-Branch
• Fix Version/s: EC-Branch
• Component/s: OM, Ozone Client
• Labels: pull-request-available
• Assignee: István Fajth
• Reporter: Uma Maheswara Rao G
• Created: 20/Jan/22 19:06
• Updated: 12/Apr/22 23:23
• Resolved: 12/Apr/22 23:23

Description

In EC branch code, we removed the client side default configurations and moved the default configurations to server side.

In case of client upgraded with newer client, but server are still old, will not understand the situation of client config unavailability as older server always expects the replication configs from client. 

 

I think as part of S3G, there are some implementations to handle the version incompatibilities. example OM handshaking it's version to client and client maintaining it's current version could help to solve the issue.

 

CC: erose kerneltime 

Issue Links

• is a child of: HDDS-6390 Facilities for compatibility - umbrella jira
• links to: GitHub Pull Request #3267