[SOLR-3985] Allow ExternalFileField caches to be reloaded on newSearcher and firstSearcher events

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.1, 6.0
• Component/s: Schema and Analysis
• Assignee: Alan Woodward
• Reporter: Alan Woodward
• Created: 24/Oct/12 10:17
• Updated: 09/May/16 18:49
• Resolved: 26/Oct/12 10:59

Description

At the moment, ExternalFileField caches can only be refreshed/reloaded by clearing them entirely, which forces a reload the next time they are used in a query. If your external files are big, this can take unacceptably long.

Instead, we should allow the caches to be loaded on newSearcher/firstSearcher events, running in the background.