[SOLR-6570] Run SolrZkClient session watch asynchronously

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 5.0, 6.0
• Component/s: SolrCloud
• Assignee: Mark Miller
• Reporter: Ramkumar Aiyengar
• Created: 29/Sep/14 15:31
• Updated: 09/May/16 18:50
• Resolved: 19/Nov/14 14:56

Description

Spin off from SOLR-6261.

This kind of already happens because the only session watcher in ConnectionManager does it's processing async (changed in SOLR-5615), but this is more consistent and avoids the possibility that a second session watcher or a change to that code re-surfaces the issue again.