This is a known bug expected to be fixed in 10.1 -- SOLR-17857 with a PR I'll be merging soon.
On Tue, Mar 24, 2026 at 5:07 AM Torsten Krah <[email protected]> wrote: > > Hi, > > while upgrading to solr 10 I observed those warning messages in the > container log: > > 2026-03-24 08:59:54.879 WARN (qtp69329761-33-null-71) [ x:mycore > t:null-71] i.o.s.m.SdkObservableInstrument > CallbackRegistration{instrumentDescriptors=[InstrumentDescriptor{name=s > olr_core_indexsearcher_cache_ops, description=Number of cumulative > cache operations (inserts and evictions), unit=, > type=OBSERVABLE_COUNTER, valueType=LONG, > advice=Advice{explicitBucketBoundaries=null, attributes=null}}, > InstrumentDescriptor{name=solr_core_indexsearcher_cache_ram_used, > description=RAM bytes used by cache, unit=By, type=OBSERVABLE_GAUGE, > valueType=LONG, advice=Advice{explicitBucketBoundaries=null, > attributes=null}}, > InstrumentDescriptor{name=solr_core_indexsearcher_cache_lookups, > description=Number of cumulative cache lookup results (hits and > misses), unit=, type=OBSERVABLE_COUNTER, valueType=LONG, > advice=Advice{explicitBucketBoundaries=null, attributes=null}}, > InstrumentDescriptor{name=solr_core_indexsearcher_cache_size, > description=Current number cache entries, unit=, type=OBSERVABLE_GAUGE, > valueType=LONG, advice=Advice{explicitBucketBoundaries=null, > attributes=null}}, > InstrumentDescriptor{name=solr_core_indexsearcher_cache_warmup_time, > description=Cache warmup time (most recent), unit=ms, > type=OBSERVABLE_GAUGE, valueType=LONG, > advice=Advice{explicitBucketBoundaries=null, attributes=null}}]} has > called close() multiple times. > > > and multiple more of those. > > Anything particular I am doing wrong here? I am just deleting and > adding documents to the index like done in 9.x, nothing special. > > Anyone an idea? > > kind regards > > Torsten >
