SpiceDB is an open source, Google Zanzibar-inspired, database system for creating and managing security-critical application permissions.

SpiceDB

Doing some load testing, we were running into oomkilled and realized we have some questions about how the cache works. Is there any cache eviction other than evicting old quantization buckets?

The scenario was mostly experimental as we get the set up going, and so I'm not terribly worried about real world implications (e.g. we only have a single pod running currently) but it did leave us wondering what exactly happened

all cache entries are TTLed to approximately 2x the quantization window

but they are also evicted if over the allocated memory

so you should not be ghetting OOM if you set the cache sizes to be below your mem limit