[SOLR-16542] Remove OverseerConfigSetMessageHandler; always do distributed mode

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: main (10.0)
• Component/s: SolrCloud
• Labels: newdev
• Assignee: Unassigned
• Reporter: David Smiley
• Created: 10/Nov/22 01:29
• Updated: 16/Feb/24 00:00

Description

distributedCollectionConfigSetExecution is a boolean setting on solr.xml/solrCloud that switches both Collection API and ConfigSet API processing between Overseer based (when =false) vs distributed (when =true). In this issue, remove the Overseer based processing of ConfigSets, thus always use DistributedCollectionConfigSetCommandRunner instead for ConfigSet processing, regardless of the distributedCollectionConfigSetExecution boolean setting. Namely, OverseerConfigSetMessageHandler would be removed. The boolean toggle would henceforth only toggle the "collection" aspect of wether to do distributed processing vs Overseer (centralized).

Issue Links

• is required by: SOLR-16543 Simplify ConfigSet processing; remove parts of DistributedCollectionConfigSetCommandRunner
• links to: GitHub Pull Request #1467
• links to: GitHub Pull Request #1982