Sorry, it was probably an observation mistake. I export the metrics to Prometheus and query the result on grafana, actually the usage will not exceed the capacity
Thanks, Lei On Fri, Apr 19, 2024 at 9:55 AM Hangxiang Yu <master...@gmail.com> wrote: > Hi, Lei. > It's indeed a bit confusing. Could you share the related rocksdb log which > may contain more detailed info ? > > On Fri, Apr 12, 2024 at 12:49 PM Lei Wang <leiwang...@gmail.com> wrote: > >> >> I enable RocksDB native metrics and do some performance tuning. >> >> state.backend.rocksdb.block.cache-size is set to 128m，4 slots for each >> TaskManager. >> >> The observed result for one specific parallel slot: >> state.backend.rocksdb.metrics.block-cache-capacity is about 14.5M >> state.backend.rocksdb.metrics.block-cache-usage is about 24M >> >> I am a little confused, why usage is larger than capacity? >> >> Thanks, >> Lei >> > > > -- > Best, > Hangxiang. >
