[SOLR-15450] Create possibility to prefetch stored fields needed for FieldValueFeatures

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: contrib - LTR
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Tom Gilke
• Created: 02/Jun/21 17:22
• Updated: 09/Oct/24 00:01

Description

The idea for this optimization came up in SOLR-12697 .

The basic idea is to create a new type of FieldValueFeature. Named e.g. PrefetchingFieldValueFeature.

This PrefetchingFieldValueFeature will prefetch all the stored fields that itself and other PrefetchingFieldValueFeatures need, so that only one of these Features has to read the values from disk. The other ones can access them from the cache, which would improve the performance.

The PrefetchingFieldValueFeature would extend the FieldValueFeature so that the current behavior of the FieldValueFeature would not be affected.

Issue Links

• links to: GitHub Pull Request #166