Hello
Under a moderate load (mostly filtering and massive terms aggregation) I see "benign" hot_threads ie
..8.6..index.fielddata.ordinals.GlobalOrdinalMapping.lookupOrd(GlobalOrdinalMapping.java:71)
..8.6..index.mapper.flattened.KeyedFlattenedLeafFieldData.findMinOrd(KeyedFlattenedLeafFieldData.java:102)
..8.6..index.mapper.flattened.KeyedFlattenedLeafFieldData.getOrdinalsValues(KeyedFlattenedLeafFieldData.java:64)
..8.6..search.aggregations.support.ValuesSource$Bytes$WithOrdinals$FieldData.globalOrdinalsValues(ValuesSource.java:287)
..8.6..search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator.getLeafCollector(GlobalOrdinalsStringTermsAggregator.java:111)
However under a certain rate threads stuck at the same lock :
java.base@19.0.1/jdk.internal.misc.Unsafe.park(Native Method)
java.base@19.0.1/java.util.concurrent.locks.LockSupport.park(LockSupport.java:221)
java.base@19.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:715)
java.base@19.0.1/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:938)
java.base@19.0.1/java.util.concurrent.locks.ReentrantLock$Sync.lock(ReentrantLock.java:153)
java.base@19.0.1/java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:322)
..8.6....common.util.concurrent.ReleasableLock.acquire(ReleasableLock.java:43)
..8.6....common.cache.Cache.promote(Cache.java:739)
..8.6....common.cache.Cache.get(Cache.java:354)
..8.6....common.cache.Cache.computeIfAbsent(Cache.java:376)
..8.6....indices.fielddata.cache.IndicesFieldDataCache$IndexFieldCache.load(IndicesFieldDataCache.java:162)
..8.6....index.fielddata.plain.AbstractIndexOrdinalsFieldData.loadGlobalInternal(AbstractIndexOrdinalsFieldData.java:127)
..8.6....index.fielddata.plain.AbstractIndexOrdinalsFieldData.loadGlobal(AbstractIndexOrdinalsFieldData.java:93)
..8.6....index.mapper.flattened.FlattenedFieldMapper$KeyedFlattenedFieldData.loadGlobal(FlattenedFieldMapper.java:532)
..8.6....search.aggregations.support.ValuesSource$Bytes$WithOrdinals$FieldData.globalOrdinalsValues(ValuesSource.java:285)
..8.6....search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator.getLeafCollector(GlobalOrdinalsStringTermsAggregator.java:111)
Am I right that it check global ordinals field data for eviction?
if so, how I can bypass that, since I don't need ever evict global ordinals.
I'm aware about map hint. Isn't there fixes in the recent version?
Thanks