[druid-user] Caffeine (L1) hits/misses metrics

Hi all,

Is there any way to get the L1 cache hits/misses metrics? The kafka emitter emits only the total requests (hits+misses).

I’ve checked, out of curiosity, JMX, hoping to see there some caffeine related stuff exposed but no luck.

Thanks,
Vadim.

Hi Vadim,

I wondered the same (before caffeine I was using "local"), but it
seems that Druid emits metrics like query/cache/*/*, more generic but
should be what you are looking for.

Hope it helps!

Luca