ERROR org.mongodb.driver.operation - Callback onResult call produced an error com.mongodb.MongoSocketException: at com.mongodb.ServerAddress.getSocketAddresses(ServerAddress.java:211) at com.mongodb.connection.netty.NettyStream.openAsync(NettyStream.java:109) at com.mongodb.internal.connection.InternalStreamConnection.openAsync(InternalStreamConnection.java:152) at com.mongodb.internal.connection.UsageTrackingInternalConnection.openAsync(UsageTrackingInternalConnection.java:57) at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection.openAsync(DefaultConnectionPool.java:404) at com.mongodb.internal.connection.DefaultConnectionPool.openAsync(DefaultConnectionPool.java:207) at com.mongodb.internal.connection.DefaultConnectionPool.getAsync(DefaultConnectionPool.java:158) at com.mongodb.internal.connection.DefaultServer.getConnectionAsync(DefaultServer.java:105) at com.mongodb.binding.AsyncClusterBinding$AsyncClusterBindingConnectionSource.getConnection(AsyncClusterBinding.java:139) at com.mongodb.operation.OperationHelper.withAsyncConnectionSource(OperationHelper.java:611) at com.mongodb.operation.OperationHelper.access$200(OperationHelper.java:63) at com.mongodb.operation.OperationHelper$AsyncCallableWithConnectionAndSourceCallback.onResult(OperationHelper.java:631) at com.mongodb.operation.OperationHelper$AsyncCallableWithConnectionAndSourceCallback.onResult(OperationHelper.java:619) at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) at com.mongodb.binding.AsyncClusterBinding$1.onResult(AsyncClusterBinding.java:113) at com.mongodb.binding.AsyncClusterBinding$1.onResult(AsyncClusterBinding.java:107) at com.mongodb.internal.connection.BaseCluster$ServerSelectionRequest.onResult(BaseCluster.java:440) at com.mongodb.internal.connection.BaseCluster.handleServerSelectionRequest(BaseCluster.java:304) at com.mongodb.internal.connection.BaseCluster.selectServerAsync(BaseCluster.java:160) at com.mongodb.internal.connection.AbstractMultiServerCluster.selectServerAsync(AbstractMultiServerCluster.java:54) at com.mongodb.binding.AsyncClusterBinding.getAsyncClusterBindingConnectionSource(AsyncClusterBinding.java:107) at com.mongodb.binding.AsyncClusterBinding.getReadConnectionSource(AsyncClusterBinding.java:97) at com.mongodb.operation.OperationHelper.withAsyncReadConnection(OperationHelper.java:558) at com.mongodb.operation.FindOperation.executeAsync(FindOperation.java:764) at com.mongodb.async.client.OperationExecutorImpl$1$1.onResult(OperationExecutorImpl.java:88) at com.mongodb.async.client.OperationExecutorImpl$1$1.onResult(OperationExecutorImpl.java:76) at com.mongodb.async.client.OperationExecutorImpl.getReadWriteBinding(OperationExecutorImpl.java:186) at com.mongodb.async.client.OperationExecutorImpl.access$200(OperationExecutorImpl.java:45) at com.mongodb.async.client.OperationExecutorImpl$1.onResult(OperationExecutorImpl.java:74) at com.mongodb.async.client.OperationExecutorImpl$1.onResult(OperationExecutorImpl.java:68) at com.mongodb.async.client.ClientSessionHelper$2.onResult(ClientSessionHelper.java:80) at com.mongodb.async.client.ClientSessionHelper$2.onResult(ClientSessionHelper.java:73) at com.mongodb.internal.connection.BaseCluster$ServerSelectionRequest.onResult(BaseCluster.java:440) at com.mongodb.internal.connection.BaseCluster.handleServerSelectionRequest(BaseCluster.java:304) at com.mongodb.internal.connection.BaseCluster.selectServerAsync(BaseCluster.java:160) at com.mongodb.internal.connection.AbstractMultiServerCluster.selectServerAsync(AbstractMultiServerCluster.java:54) at com.mongodb.async.client.ClientSessionHelper.createClientSession(ClientSessionHelper.java:68) at com.mongodb.async.client.ClientSessionHelper.withClientSession(ClientSessionHelper.java:51) at com.mongodb.async.client.OperationExecutorImpl.execute(OperationExecutorImpl.java:68) at com.mongodb.async.client.FindIterableImpl.first(FindIterableImpl.java:198) at com.mongodb.reactivestreams.client.internal.FindPublisherImpl$1.apply(FindPublisherImpl.java:47) at com.mongodb.reactivestreams.client.internal.FindPublisherImpl$1.apply(FindPublisherImpl.java:44) at com.mongodb.async.client.SingleResultCallbackSubscription.requestInitialData(SingleResultCallbackSubscription.java:38) at com.mongodb.async.client.AbstractSubscription.tryRequestInitialData(AbstractSubscription.java:164) at com.mongodb.async.client.AbstractSubscription.request(AbstractSubscription.java:87) at com.mongodb.reactivestreams.client.internal.ObservableToPublisher$1$1.request(ObservableToPublisher.java:48) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:102) at reactor.core.publisher.MonoNext$NextSubscriber.request(MonoNext.java:102) at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:155) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:230) at ********************************************** at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:86) at ********************************************** at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:64) at reactor.core.publisher.MonoNext$NextSubscriber.onSubscribe(MonoNext.java:64) at com.mongodb.reactivestreams.client.internal.SingleResultObservableToPublisher$1.onSubscribe(SingleResultObservableToPublisher.java:37) at com.mongodb.reactivestreams.client.internal.ObservableToPublisher$1.onSubscribe(ObservableToPublisher.java:37) at com.mongodb.async.client.SingleResultCallbackSubscription.(SingleResultCallbackSubscription.java:33) at com.mongodb.async.client.Observables$2.subscribe(Observables.java:78) at com.mongodb.reactivestreams.client.internal.ObservableToPublisher.subscribe(ObservableToPublisher.java:34) at com.mongodb.reactivestreams.client.internal.SingleResultObservableToPublisher.subscribe(SingleResultObservableToPublisher.java:34) at reactor.core.publisher.MonoFromPublisher.subscribe(MonoFromPublisher.java:55) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:114) at ********************************************** at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:92) at ********************************************** at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:73) at ********************************************** at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1712) at reactor.core.publisher.MonoSupplier.subscribe(MonoSupplier.java:61) at reactor.core.publisher.Mono.subscribe(Mono.java:4210) at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:97) at ********************************************** at reactor.core.publisher.MonoFlatMap$FlatMapMain.onError(MonoFlatMap.java:165) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onError(FluxHide.java:132) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onError(FluxFilterFuseable.java:156) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onError(FluxHide.java:132) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onError(FluxMapFuseable.java:134) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onError(FluxHide.java:132) at reactor.core.publisher.FluxHandleFuseable$HandleFuseableSubscriber.onNext(FluxHandleFuseable.java:185) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.FluxHandleFuseable$HandleFuseableSubscriber.request(FluxHandleFuseable.java:243) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:162) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.request(FluxFilterFuseable.java:184) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:103) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.FluxFilterFuseable$FilterFuseableSubscriber.onSubscribe(FluxFilterFuseable.java:81) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:90) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.FluxHandleFuseable$HandleFuseableSubscriber.onSubscribe(FluxHandleFuseable.java:148) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.MonoCurrentContext.subscribe(MonoCurrentContext.java:35) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1712) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:241) at ********************************************** at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:73) at ********************************************** at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:203) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:203) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1712) at reactor.core.publisher.MonoIgnoreThen$ThenAcceptInner.onNext(MonoIgnoreThen.java:296) at ********************************************** at ********************************************** at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1712) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:241) at ********************************************** at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:230) at ********************************************** at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1712) at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:247) at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:329) at ********************************************** at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:173) at ********************************************** at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:92) at ********************************************** at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) at ********************************************** at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1712) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:241) at ********************************************** at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.MonoFlatMap$FlatMapInner.onSubscribe(MonoFlatMap.java:230) at ********************************************** at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:103) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) at reactor.core.publisher.Mono.subscribe(Mono.java:4210) at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:153) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) at ********************************************** at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:76) at ********************************************** at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:274) at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:851) at ********************************************** at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:121) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:173) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:132) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:162) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2082) at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:1956) at ********************************************** at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:90) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:145) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) at reactor.core.publisher.Mono.subscribe(Mono.java:4210) at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:441) at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:211) at ********************************************** at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:161) at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:153) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:103) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onNext(FluxHide.java:127) at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2274) at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.request(FluxHide.java:142) at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:103) at ********************************************** at reactor.core.publisher.FluxHide$SuppressFuseableSubscriber.onSubscribe(FluxHide.java:113) at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) at reactor.core.publisher.Mono.subscribe(Mono.java:4210) at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:172) at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:55) at reactor.netty.http.server.HttpServerHandle.onStateChange(HttpServerHandle.java:64) at reactor.netty.tcp.TcpServerBind$ChildObserver.onStateChange(TcpServerBind.java:228) at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:465) at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:90) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:170) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:93) at ********************************************** at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:321) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:295) at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:792) at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475) at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.net.UnknownHostException: at java.base/java.net.InetAddress$CachedAddresses.get(InetAddress.java:797) at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:883) at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1505) at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1364) at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1298) at com.mongodb.ServerAddress.getSocketAddresses(ServerAddress.java:203) at com.mongodb.connection.netty.NettyStream.openAsync(NettyStream.java:109) at com.mongodb.internal.connection.InternalStreamConnection.openAsync(InternalStreamConnection.java:152) at com.mongodb.internal.connection.UsageTrackingInternalConnection.openAsync(UsageTrackingInternalConnection.java:57) at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection.openAsync(DefaultConnectionPool.java:404) at com.mongodb.internal.connection.DefaultConnectionPool.openAsync(DefaultConnectionPool.java:207) at com.mongodb.internal.connection.DefaultConnectionPool.getAsync(DefaultConnectionPool.java:158) at com.mongodb.internal.connection.DefaultServer.getConnectionAsync(DefaultServer.java:105) at com.mongodb.binding.AsyncClusterBinding$AsyncClusterBindingConnectionSource.getConnection(AsyncClusterBinding.java:139) at com.mongodb.operation.OperationHelper.withAsyncConnectionSource(OperationHelper.java:611) at com.mongodb.operation.OperationHelper.access$200(OperationHelper.java:63) at com.mongodb.operation.OperationHelper$AsyncCallableWithConnectionAndSourceCallback.onResult(OperationHelper.java:631) at com.mongodb.operation.OperationHelper$AsyncCallableWithConnectionAndSourceCallback.onResult(OperationHelper.java:619) at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) at com.mongodb.binding.AsyncClusterBinding$1.onResult(AsyncClusterBinding.java:113) at com.mongodb.binding.AsyncClusterBinding$1.onResult(AsyncClusterBinding.java:107) at com.mongodb.internal.connection.BaseCluster$ServerSelectionRequest.onResult(BaseCluster.java:440) at com.mongodb.internal.connection.BaseCluster.handleServerSelectionRequest(BaseCluster.java:304) at com.mongodb.internal.connection.BaseCluster.selectServerAsync(BaseCluster.java:160) at com.mongodb.internal.connection.AbstractMultiServerCluster.selectServerAsync(AbstractMultiServerCluster.java:54) at com.mongodb.binding.AsyncClusterBinding.getAsyncClusterBindingConnectionSource(AsyncClusterBinding.java:107) at com.mongodb.binding.AsyncClusterBinding.getReadConnectionSource(AsyncClusterBinding.java:97) at com.mongodb.operation.OperationHelper.withAsyncReadConnection(OperationHelper.java:558) at com.mongodb.operation.FindOperation.executeAsync(FindOperation.java:764) at com.mongodb.async.client.OperationExecutorImpl$1$1.onResult(OperationExecutorImpl.java:88) at com.mongodb.async.client.OperationExecutorImpl$1$1.onResult(OperationExecutorImpl.java:76) at com.mongodb.async.client.OperationExecutorImpl.getReadWriteBinding(OperationExecutorImpl.java:186) at com.mongodb.async.client.OperationExecutorImpl.access$200(OperationExecutorImpl.java:45) at com.mongodb.async.client.OperationExecutorImpl$1.onResult(OperationExecutorImpl.java:74) at com.mongodb.async.client.OperationExecutorImpl$1.onResult(OperationExecutorImpl.java:68) at com.mongodb.async.client.ClientSessionHelper$2.onResult(ClientSessionHelper.java:80) at com.mongodb.async.client.ClientSessionHelper$2.onResult(ClientSessionHelper.java:73) at com.mongodb.internal.connection.BaseCluster$ServerSelectionRequest.onResult(BaseCluster.java:440) at com.mongodb.internal.connection.BaseCluster.handleServerSelectionRequest(BaseCluster.java:304) at com.mongodb.internal.connection.BaseCluster.selectServerAsync(BaseCluster.java:160) at com.mongodb.internal.