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https://issues.apache.org/jira/browse/IGNITE-14776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pavel Tupitsyn resolved IGNITE-14776.
-------------------------------------
Resolution: Fixed
> .NET: ClientFailoverSocket sets logger too late, resulting in null loggers
> downstream
> -------------------------------------------------------------------------------------
>
> Key: IGNITE-14776
> URL: https://issues.apache.org/jira/browse/IGNITE-14776
> Project: Ignite
> Issue Type: Bug
> Components: clients, platforms
> Affects Versions: 2.10, 2.11
> Reporter: Robert May
> Assignee: Pavel Tupitsyn
> Priority: Critical
> Labels: .NET
> Fix For: 2.12
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Because the logger is set last inside of the
> {code:c#}ClientFailoverSocket{code} class, if there are issues with the
> {code:c#}GetIpEndpoints{code} call, an argument exception can occur when a
> debug message is logged inside of {code:c#}GetIps{code} when the ip address
> can't be parsed. In my case, this occurred with a DNS failure.
> Stack Trace:
> {code:c#}
> System.ArgumentNullException: Value cannot be null. (Parameter 'logger')
> at Apache.Ignite.Core.Impl.Common.IgniteArgumentCheck.NotNull(Object arg,
> String argName)
> at Apache.Ignite.Core.Log.LoggerExtensions.Log(ILogger logger, LogLevel
> level, Exception ex, String message)
> at Apache.Ignite.Core.Log.LoggerExtensions.Debug(ILogger logger, Exception
> ex, String message)
> at Apache.Ignite.Core.Impl.Client.ClientFailoverSocket.GetIps(String host,
> Boolean suppressExceptions)
> at
> Apache.Ignite.Core.Impl.Client.ClientFailoverSocket.<GetIpEndPoints>d__11.MoveNext()
> at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
> at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
> at
> Apache.Ignite.Core.Impl.Client.ClientFailoverSocket..ctor(IgniteClientConfiguration
> config, Marshaller marsh, TransactionsClient transactions)
> at
> Apache.Ignite.Core.Impl.Client.IgniteClient..ctor(IgniteClientConfiguration
> clientConfiguration)
> at Apache.Ignite.Core.Ignition.StartClient(IgniteClientConfiguration
> clientConfiguration)
> {code}
> Here's the constructor code:
> {code:c#}
> Debug.Assert(config != null);
> Debug.Assert(marsh != null);
> Debug.Assert(transactions != null);
> _config = config;
> _marsh = marsh;
> _transactions = transactions;
> #pragma warning disable 618 // Type or member is obsolete
> if (config.Host == null && (config.Endpoints == null ||
> config.Endpoints.Count == 0))
> {
> throw new IgniteClientException("Invalid
> IgniteClientConfiguration: Host is null, " +
> "Endpoints is null or empty.
> Nowhere to connect.");
> }
> #pragma warning restore 618
> _endPoints = GetIpEndPoints(config).ToList();
> if (_endPoints.Count == 0)
> {
> throw new IgniteClientException("Failed to resolve all
> specified hosts.");
> }
> _logger = (_config.Logger ??
> NoopLogger.Instance).GetLogger(GetType());
> ConnectDefaultSocket();
> OnFirstConnection();
> {code}
> Note how the _logger variable isn't set until the very end of the constructor.
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