[SOLR-11191] Shard Split doesn't work on indexes that have child documents

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.8
• Labels: NestedDocuments pull-request-available
• Assignee: David Smiley
• Reporter: Varun Thacker
• Created: 03/Aug/17 17:28
• Updated: 31/Oct/24 13:54
• Resolved: 30/Oct/24 03:37

Description

The split shard command doesn't split a shard correctly when the index has parent-child documents.

The way split shard works is it goes through all documents id's in that shard and then decides which sub-shard would it belong in . It is not aware of the parent child relationship during this process

So the parent-child documents could be orphaned and end up in different shard
Secondly, even with the routing of parent and child documents were the same split shards needs to re-index them as a block

Issue Links

• relates to: SOLR-17517 router.field should be applied to a nested doc tree automatically
• links to: GitHub Pull Request #2686
• links to: GitHub Pull Request #2799