Hi, is it expected the cache hit rate SpiceDB #spicedb

Hi, is it expected the cache hit rate

o

Oscar

02/10/2026, 3:14 AM

Hi, is it expected the cache hit rate will drop after using

--enable-experimental-watchable-schema-cache

?

Oscar

02/10/2026, 3:16 AM

it went from ~60% -> now between 10-40% (depending on traffic) https://cdn.discordapp.com/attachments/1470618792986935539/1470619260043923576/Screenshot_2026-02-10_at_11.11.40_AM.png?ex=698bf46a&is=698aa2ea&hm=87dfccdc4f6070a4f9506f52ed30552a9eb81695389aa136a0436c7be4909a02&

j

Joey

02/10/2026, 3:20 AM

well, yes

Joey

02/10/2026, 3:20 AM

you're including both caches in the metrics

Joey

02/10/2026, 3:21 AM

so now you have metrics from two, independent, caches mixing

o

Oscar

02/10/2026, 3:55 AM

> two, independent, caches what are the 2? schema cache + data? which metric (or tag) should I use to show cache hit rate for data only?

j

Joey

02/10/2026, 5:24 AM

schema cache and dispatch cache

Joey

02/10/2026, 5:24 AM

it should be labeled with cache kind

o

Oscar

02/10/2026, 8:36 AM

what is the difference between spicedb_dispatch_check.count & spicedb_dispatch**_client_**check.count? this is self-hosted SpiceDB metrics collected from prometheus shipped to DataDog https://cdn.discordapp.com/attachments/1470618792986935539/1470700041013297152/Screenshot_2026-02-10_at_4.35.41_PM.png?ex=698c3fa6&is=698aee26&hm=a9966b44ad2c795eeefef907dc8eff6991d1710c0db92ef501d77cebfc209cce&

Oscar

02/10/2026, 9:43 AM

is

spicedb_cache_hits

correct? I tried to plot by

cache

tag, dispatch cache hit rate is only 2% but if I use

spicedb_services_dispatches

with

cached: true

, cache hit rate is ~40% I wonder which one is the "correct" cache hit rate and what is `cluster_dispatch`/`namespace` cache? https://cdn.discordapp.com/attachments/1470618792986935539/1470716725413810359/Screenshot_2026-02-10_at_5.40.52_PM.png?ex=698c4f2f&is=698afdaf&hm=2eded8fe5bf30aaa37dc187157dbbb782385826baa74bcfcda4d514ef9c2e9a2& https://cdn.discordapp.com/attachments/1470618792986935539/1470716725828784302/Screenshot_2026-02-10_at_5.42.03_PM.png?ex=698c4f30&is=698afdb0&hm=5bedb24098e818952ed2e60b6f21c62f328020e721c8afc293b063bf2cfa2fff&

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