[SOLR-11702] Redesign current LIR implementation

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.3, 8.0
• Assignee: Cao Manh Dat
• Reporter: Cao Manh Dat
• Created: 29/Nov/17 14:37
• Updated: 28/Feb/23 14:54
• Resolved: 29/Jan/18 08:59

Description

I recently looked into some problem related to racing between LIR and Recovering. I would like to propose a totally new approach to solve SOLR-5495 problem because fixing current implementation by a bandage will lead us to other problems (we can not prove the correctness of the implementation).

Feel free to give comments/thoughts about this new scheme.
https://docs.google.com/document/d/1dM2GKMULsS45ZMuvtztVnM2m3fdUeRYNCyJorIIisEo/edit?usp=sharing

Issue Links

• is duplicated by: SOLR-9945 LIR should check the node is recovering before bring it down
• relates to: SOLR-10398 Multiple LIR requests can fail PeerSync even if it succeeds
• relates to: SOLR-9555 Leader incorrectly publishes state for replica when it puts replica into LIR.
• supercedes: SOLR-6236 Need an optional fallback mechanism for selecting a leader when all replicas are in leader-initiated recovery.