Redis key disappears without warning

3
votes

I have been using redis for quite some time and currently at version 2.3.11. We are witnessing some of the keys disappear even though, they don't have any timeout set (I checked using ttl for keys that did not disappear? Also checked pretty much every attribute set using 'info' but cant seem to get a clue? Anyone seen this?

Note: We store the same keys in 2 places (PostGres and Redis) and same application writes or removes. There is no application running.

1
redis
is your maxmemory-policy set to allkeys-lru? – akonsu
akonsu - no, # maxmemory-policy volatile-lru, so it is not even set. – NullException
Did you ever find an answer to this? I'm in the same spot: two years in, all of sudden keys are disappearing, without any code or environment changes. – LandonC
related: stackoverflow.com/questions/30510254/redis-keys-disappear – Daniel Alder

1 Answers

1
votes

Please check the maxmemory-policy. If you're using AWS Elasticache note that the default is volatile-lru: Parameters for Redis