java.lang.Error: Maximum permit count exceeded ---------------------------------------------- Key: ISPN-10822 URL: https://issues.jboss.org/browse/ISPN-10822 Project: Infinispan Issue Type: Bug Components: Clustered Executor Affects Versions: 9.4.4.Final Reporter: AshokKumar NV Priority: Major We use an MS-SQL database when we are try to retrieve the data concurrently we are facing this issue. Please find the stack trace. {noformat} java.lang.Error: Maximum permit count exceeded at java.base/java.util.concurrent.Semaphore$Sync.tryReleaseShared(Semaphore.java:198) at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1382) at java.base/java.util.concurrent.Semaphore.release(Semaphore.java:432) at io.reactivex.internal.operators.flowable.FlowableUsing$UsingSubscriber.onComplete(FlowableUsing.java:139) at io.reactivex.internal.operators.flowable.FlowableUsing$UsingSubscriber.onComplete(FlowableUsing.java:148) at io.reactivex.internal.subscriptions.EmptySubscription.complete(EmptySubscription.java:68) at io.reactivex.internal.operators.flowable.FlowableFromIterable.subscribe(FlowableFromIterable.java:61) at io.reactivex.internal.operators.flowable.FlowableFromIterable.subscribeActual(FlowableFromIterable.java:47) at io.reactivex.Flowable.subscribe(Flowable.java:14409) at io.reactivex.Flowable.subscribe(Flowable.java:14356) at io.reactivex.internal.operators.flowable.FlowableUsing.subscribeActual(FlowableUsing.java:74) at io.reactivex.Flowable.subscribe(Flowable.java:14409) at io.reactivex.Flowable.subscribe(Flowable.java:14356) at io.reactivex.internal.operators.flowable.FlowableUsing.subscribeActual(FlowableUsing.java:74) at io.reactivex.Flowable.subscribe(Flowable.java:14409) at io.reactivex.internal.operators.flowable.FlowableMap.subscribeActual(FlowableMap.java:38) at io.reactivex.Flowable.subscribe(Flowable.java:14409) at io.reactivex.internal.operators.flowable.BlockingFlowableIterable.iterator(BlockingFlowableIterable.java:42) at org.infinispan.util.Closeables.iterator(Closeables.java:30) at org.infinispan.stream.impl.local.PersistenceEntryStreamSupplier.lambda$null$5(PersistenceEntryStreamSupplier.java:104) at org.infinispan.util.LazyConcatIterator.hasNext(LazyConcatIterator.java:43) at java.base/java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1811) at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(StreamSpliterators.java:294) at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(StreamSpliterators.java:206) at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(StreamSpliterators.java:169) at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(StreamSpliterators.java:300) at java.base/java.util.Spliterators$1Adapter.hasNext(Spliterators.java:681) {noformat}