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Type:
Bug
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Resolution: Gone away
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Priority:
Major - P3
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None
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Affects Version/s: 2.11.4
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Component/s: Connectivity
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None
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Environment:Raspberry Pi 4. Ubuntu 20.04 64-bit
I have been using C# MongoDB.Driver 2.6.1 very successfully with MongoDB engine v4.2.10 running on a Raspberry Pi 4 (Ubuntu 20.04 64-bit)
However when I upgrade MongoDB.Driver to version 2.11.4, an exception is thrown when constructing a MongoClient.
Here is a simplified version of my GetMongoClient code:
public static MongoClient GetMongoClient( string machineName, string dbName, string username, SecureString password ) { var connString = $"mongodb://{machineName}/"; var settings = MongoClientSettings.FromConnectionString(connString); if (!String.IsNullOrEmpty(username) && password != null) { var credential = MongoCredential.CreateCredential(dbName, username, password); settings.Credential = credential; } Console.WriteLine($"GetMongoClient - created settings: {settings}"); Console.WriteLine($" ConnString: {connString}"); Console.WriteLine($" HeartbeatTimeout: {settings.HeartbeatTimeout}"); Console.WriteLine($" MaxConnectionIdleTime: {settings.MaxConnectionIdleTime}"); Console.WriteLine($" MaxConnectionLifeTime: {settings.MaxConnectionLifeTime}"); Console.WriteLine($" ServerSelectionTimeout: {settings.ServerSelectionTimeout}"); Console.WriteLine($" SocketTimeout: {settings.SocketTimeout}"); Console.WriteLine($" WaitQueueTimeout: {settings.WaitQueueTimeout}"); return new MongoClient(settings); // <----- EXCEPTION THROWN HERE }
Here is the debugging output produced before the exception is thrown:
GetMongoClient - created settings: ConnectionMode=Automatic;ConnectTimeout=00:00:30;Credentials={{}};GuidRepresentation=CSharpLegacy;HeartbeatInterval=00:00:10;HeartbeatTimeout=-00:00:00.0010000;IPv6=False;MaxConnectionIdleTime=00:10:00;MaxConnectionLifeTime=00:30:00;MaxConnectionPoolSize=100;MinConnectionPoolSize=0;ReadConcern={ };ReadPreference={ Mode : Primary };ReplicaSetName=;RetryReads=TrueRetryWrites=TrueLocalThreshold=00:00:00.0150000;Servers=127.0.0.1:27017;ServerSelectionTimeout=00:00:30;SocketTimeout=00:00:00;SslSettings={CheckCertificateRevocation=False,EnabledProtocols=Tls, Tls11, Tls12};Tls=False;TlsInsecure=False;WaitQueueSize=500;WaitQueueTimeout=00:02:00WriteConcern={ };
ConnString: mongodb://127.0.0.1/
HeartbeatTimeout: -00:00:00.0010000
MaxConnectionIdleTime: 00:10:00
MaxConnectionLifeTime: 00:30:00
ServerSelectionTimeout: 00:00:30
SocketTimeout: 00:00:00
WaitQueueTimeout: 00:02:00
And here are the exception details:
ArgumentOutOfRangeException: Value is not greater than zero: 00:00:00. Parameter name: maxLifeTime at MongoDB.Driver.Core.Misc.Ensure.IsGreaterThanZero(TimeSpan value, String paramName) at MongoDB.Driver.Core.Configuration.ConnectionSettings..ctor(Optional`1 authenticatorFactories, Optional`1 compressors, Optional`1 maxIdleTime, Optional`1 maxLifeTime, Optional`1 applicationName) at MongoDB.Driver.Core.Configuration.ConnectionSettings.With(Optional`1 authenticatorFactories, Optional`1 compressors, Optional`1 maxIdleTime, Optional`1 maxLifeTime, Optional`1 applicationName) at MongoDB.Driver.ClusterRegistry.ConfigureConnection(ConnectionSettings settings, ClusterKey clusterKey) at MongoDB.Driver.Core.Configuration.ClusterBuilder.ConfigureConnection(Func`2 configurator) at MongoDB.Driver.ClusterRegistry.CreateCluster(ClusterKey clusterKey) at MongoDB.Driver.ClusterRegistry.GetOrCreateCluster(ClusterKey clusterKey) at MongoDB.Driver.MongoClient..ctor(MongoClientSettings settings) at MyNamespace.GetMongoClient(String machineName, String dbName, String username, SecureString password) ...
As far as I can see the 'maxLifeTime' parameter referred to corresponds to the MongoClientSettings.MaxConnectionLifeTime property, which as you can see from my logging is set to 30 minutes.
I have also experimented with explicitly settings various other time-related properties, but none have made any difference.
This only seems to be a problem when running on Linux, as the same code works perfectly using the upgraded driver on Windows.