[SOLR-15718] Remove backcompat feature solr.useUnsafeOverseerResponse

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 9.2
• Assignee: Jan Høydahl
• Reporter: Jan Høydahl
• Created: 26/Oct/21 10:26
• Updated: 27/Mar/23 18:04
• Resolved: 30/Oct/22 21:06

Description

In SOLR-14095 (Solr 8.5) a system property solr.useUnsafeOverseerResponse was introduced to do rolling upgrades from 8.5 to 8.6 (which lets 8.6 fall back to Java-serialization).

See https://github.com/apache/solr/search?q=useUnsafeOverseerResponse

When upgrading to 9.0 I suppose we tell people to first upgrade to 8.11, so in 9.0 we don't need this. tflobbe agree?

Issue Links

• relates to: SOLR-14095 Replace Java serialization with Javabin in Overseer operations
• links to: GitHub Pull Request #371