[GEODE-8937] Investigate the Geode Redis eviction behavior when OOM

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Done
• Component/s: redis
• Assignee: Hale Bales
• Reporter: Hale Bales
• Created: 10/Feb/21 18:41
• Updated: 16/Feb/21 19:53
• Resolved: 16/Feb/21 19:53

Description

Redis has very well documented eviction polices (https://redis.io/topics/lru-cache ) & ( https://docs.redislabs.com/latest/rs/administering/database-operations/eviction-policy/).

Currently, the default eviction policy for the Redis for PCF tile is the allkeys-lru and our implementation does not implement any of the current eviction policy.

AC
Confirm what Redis responds with when the allkeys-lru policy is in place and it runs out of memory.

Determine what happens in our implementation when an instance runs out of memory.