从本地系统.NET标准2.0与mongo驱动程序2.7.3连接到Atlas mongodb并列出更改流工作。
当我将相同的系统部署到ubuntu 16.04 LTS时，它会抛出以下错误。
连接字符串：
mongodb://xxxxxx:xxxxx@mycluster-shard-00-00-
xxxx.mongodb.net:27017,mycluster-shard-00-01-
xxxx.mongodb.net:27017,mycluster-shard-00-02-xxxx.mongodb.net:27017/test?ssl=true&
replicaSet=Cluster-shard-0&retryWrites=true
错误：
A timeout occured after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }.
Client view of cluster state is { ClusterId : "1", ConnectionMode : "ReplicaSet", Type : "ReplicaSet", State : "Disconnected", Servers : [{ ServerId: "{ ClusterId : 1, EndPoint : "Unspecified/mycluster-shard-00-00-xxxx.mongodb.net:27017" }", EndPoint: "U
nspecified/mycluster-shard-00-00-xxxx.mongodb.net:27017", State: "Disconnected", Type: "Unknown", HeartbeatException: "MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server. ---> System.IO.IOException: Th
e authentication or decryption has failed. ---> System.IO.IOException: The authentication or decryption has failed. ---> Mono.Security.Protocol.Tls.TlsException: The authentication or decryption has failed.#012 at Mono.Security.Protocol.Tls.RecordProtocol.E
ndReceiveRecord (System.IAsyncResult asyncResult) [0x00037] in <081f2539f5f74de086ddfa5e875c2fff>:0 #012 at Mono.Security.Protocol.Tls.SslClientStream.SafeEndReceiveRecord (System.IAsyncResult ar, System.Boolean ignoreEmpty) [0x00000] in <081f2539f5f74de086
ddfa5e875c2fff>:0 #012 at Mono.Security.Protocol.Tls.SslClientStream.NegotiateAsyncWorker (System.IAsyncResult result) [0x00071] in <081f2539f5f74de086ddfa5e875c2fff>:0 #012 --- End of inner exception stack trace ---#012 at Mono.Security.Protocol.Tls.SslClient
Stream.EndNegotiateHandshake (System.IAsyncResult result) [0x00032] in <081f2539f5f74de086ddfa5e875c2fff>:0 #012 at Mono.Security.Protocol.Tls.SslStreamBase.AsyncHandshakeCallback (System.IAsyncResult asyncResult) [0x0000c] in <081f2539f5f74de086ddfa5e875c2
fff>:0 #012 --- End of inner exception stack trace ---#012 at Mono.Security.Protocol.Tls.SslStreamBase.EndRead (System.IAsyncResult asyncResult) [0x0004b] in <081f2539f5f74de086ddfa5e875c2fff>:0 #012 at Mono.Net.Security.Private.LegacySslStream.EndAuthenticate
AsClient (System.IAsyncResult asyncResult) [0x0000e] in <8ad536febd8d4466a395baa742076330>:0 #012 at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endActio
n, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x00019] in <f5397d5e4dd146a1b2f33671be050366>:0 #012--- End of stack trace from previous location where exception was thrown ---#012 at System.Runtime.ExceptionService
s.ExceptionDispatchInfo.Throw () [0x0000c] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runti
me.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [
0x00008] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult () [0x00000] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at MongoDB.Driver.Core.Connections.SslStreamFactory+<Cre
ateStreamAsync>d__4.MoveNext () [0x00182] in <50e51985348f46898d8a3c7759e943e8>:0 #012--- End of stack trace from previous location where exception was thrown ---#012 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <f5397d5e4dd1
46a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebugger
Notification (System.Threading.Tasks.Task task) [0x00028] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at Syst
em.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at MongoDB.Driver.Core.Connections.BinaryConnection+<OpenHelperAsync>d__48.MoveNext () [0x000b6] in <50e
51985348f46898d8a3c7759e943e8>:0 #012 --- End of inner exception stack trace ---#012 at MongoDB.Driver.Core.Connections.BinaryConnection+<OpenHelperAsync>d__48.MoveNext () [0x001b4] in <50e51985348f46898d8a3c7759e943e8>:0 #012--- End of stack trace from previou
s location where exception was thrown ---#012 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.T
ask task) [0x0003e] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime
.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <f5397d5e4dd146a1b2f33671be050366>:0 #012 at System.Runtime.CompilerServices.ConfiguredTaskAwaitable+Config
堆栈跟踪：
at MongoDB.Driver.Core.Clusters.Cluster.ThrowTimeoutException (MongoDB.Driver.Core.Clusters.ServerSelectors.IServerSelector selector, MongoDB.Driver.Core.Clusters.ClusterDescription description) [0x00013] in <50e51985348f46898d8a3
c7759e943e8>:0 #012 at MongoDB.Driver.Core.Clusters.Cluster+WaitForDescriptionChangedHelper.HandleCompletedTask (System.Threading.Tasks.Task completedTask) [0x00009] in <50e51985348f46898d8a3c7759e943e8>:0 #012 at MongoDB.Driver.Core.Clusters.Cluster.WaitForD
escriptionChanged (MongoDB.Driver.Core.Clusters.ServerSelectors.IServerSelector selector, MongoDB.Driver.Core.Clusters.ClusterDescription description, System.Threading.Tasks.Task descriptionChangedTask, System.TimeSpan timeout, System.Threading.Cancellati
onToken cancellationToken) [0x00021] in <50e51985348f46898d8a3c7759e943e8>:0 #012 at MongoDB.Driver.Core.Clusters.Cluster.SelectServer (MongoDB.Driver.Core.Clusters.ServerSelectors.IServerSelector selector, System.Threading.CancellationToken cancellationTok
en) [0x00057] in <50e51985348f46898d8a3c7759e943e8>:0 #012 at MongoDB.Driver.MongoClient.AreSessionsSupportedAfterServerSelection (System.Threading.CancellationToken cancellationToken) [0x00006] in <e62075b47b974b1bb87a7dfdf33dbed3>:0 #012 at MongoDB.Driver.M
ongoClient.AreSessionsSupported (System.Threading.CancellationToken cancellationToken) [0x0001b] in <e62075b47b974b1bb87a7dfdf33dbed3>:0 #012 at MongoDB.Driver.MongoClient.StartImplicitSession (System.Threading.CancellationToken cancellationToken) [0x00000]
in <e62075b47b974b1bb87a7dfdf33dbed3>:0 #012 at MongoDB.Driver.OperationExecutor.StartImplicitSession (System.Threading.CancellationToken cancellationToken) [0x00000] in <e62075b47b974b1bb87a7dfdf33dbed3>:0 #012 at MongoDB.Driver.MongoCollectionImpl`1[TDocum
ent].UsingImplicitSession[TResult] (System.Func`2[T,TResult] func, System.Threading.CancellationToken cancellationToken) [0x00000] in <e62075b47b974b1bb87a7dfdf33dbed3>:0 #012 at MongoDB.Driver.MongoCollectionImpl`1[TDocument].Watch[TResult] (MongoDB.Driver
.PipelineDefinition`2[TInput,TOutput] pipeline, MongoDB.Driver.ChangeStreamOptions options, System.Threading.CancellationToken cancellationToken) [0x0002f] in <e62075b47b974b1bb87a7dfdf33dbed3>:0 #012 at StateDataStore.CloudControlRoomState.Listen () [0x001
41] in <97005dd8325444bca5185303cdcf2ece>:0
Warning: Failed to connect to the agentx master agent ([NIL]):
enter code here
任何帮助！
MongoDb Atlas免费软件不支持变更流，这就是我们遇到这个问题的原因。
当MongoDb安装在AWS EC2实例中时，它工作正常，我们能够连接和监听更改流。