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If there is a problem contact ryanbrandenburg.\n\nThis test [failed](http://aspnetci/viewLog.html?buildId=578572&buildTypeId=Releases_22xPublic_UbuntuUniverse) with the following error:\r\n\r\n```\r\nMicrosoft.AspNetCore.SignalR.HubException : An unexpected error occurred invoking 'EchoGroup' on the server. RedisConnectionException: No connection is available to service this operation: PUBLISH Microsoft.AspNetCore.SignalR.StackExchangeRedis.Tests.EchoHub:group:TestGroup_WebSockets_json_8926ab6f-70cf-49e9-9540-d33337219573; IOCP: (Busy=0,Free=1000,Min=8,Max=1000), WORKER: (Busy=5,Free=32762,Min=8,Max=32767), Local-CPU: n/a\r\n   at Microsoft.AspNetCore.SignalR.Client.HubConnection.InvokeCoreAsyncCore(String methodName, Type returnType, Object[] args, CancellationToken cancellationToken) in /_/src/Microsoft.AspNetCore.SignalR.Client.Core/HubConnection.cs:line 462\r\n   at System.Threading.Tasks.ForceAsyncAwaiter`1.GetResult() in /_/src/Common/ForceAsyncAwaiter.cs:line 64\r\n   at Microsoft.AspNetCore.SignalR.Client.HubConnection.InvokeCoreAsync(String methodName, Type returnType, Object[] args, CancellationToken cancellationToken) in /_/src/Microsoft.AspNetCore.SignalR.Client.Core/HubConnection.cs:line 264\r\n   at System.Threading.Tasks.TaskExtensions.OrTimeout(Task task, TimeSpan timeout, String memberName, String filePath, Nullable`1 lineNumber) in /_/test/Microsoft.AspNetCore.SignalR.Tests.Utils/TaskExtensions.cs:line 40\r\n   at Microsoft.AspNetCore.SignalR.StackExchangeRedis.Tests.RedisEndToEndTests.HubConnectionCanSendAndReceiveGroupMessages(HttpTransportType transportType, String protocolName) in /_/test/Microsoft.AspNetCore.SignalR.StackExchangeRedis.Tests/RedisEndToEnd.cs:line 88\r\n--- End of stack trace from previous location where exception was thrown ---\r\n------- Stdout: -------\r\n| [0.003s] TestLifetime Information: Starting test HubConnectionCanSendAndReceiveGroupMessages-WebSockets-json at 2018-10-16T02:51:59\r\n| [0.000s] TestLifetime Information: Starting test HubConnectionCanSendAndReceiveGroupMessages_WebSockets_json at 2018-10-16T02:51:59\r\n| [0.369s] Microsoft.AspNetCore.Http.Connections.Client.Internal.WebSocketsTransport Information: SAWpiTG4uDvMXWfbyg2rRQ - Starting transport. Transfer mode: Text. Url: 'ws://127.0.0.1:37537/echo?id=SAWpiTG4uDvMXWfbyg2rRQ'.\r\n| [0.470s] Microsoft.AspNetCore.Http.Connections.Client.HttpConnection Information: SAWpiTG4uDvMXWfbyg2rRQ - HttpConnection Started.\r\n| [0.478s] Microsoft.AspNetCore.SignalR.Client.HubConnection Information: SAWpiTG4uDvMXWfbyg2rRQ - Using HubProtocol 'json v1'.\r\n| [0.572s] Microsoft.AspNetCore.SignalR.Client.HubConnection Information: SAWpiTG4uDvMXWfbyg2rRQ - HubConnection started.\r\n| [0.585s] Microsoft.AspNetCore.Http.Connections.Client.Internal.WebSocketsTransport Information: mrSZOGkNy-aHSAQDkthD2Q - Starting transport. Transfer mode: Text. Url: 'ws://127.0.0.1:46667/echo?id=mrSZOGkNy-aHSAQDkthD2Q'.\r\n| [0.589s] Microsoft.AspNetCore.Http.Connections.Client.HttpConnection Information: mrSZOGkNy-aHSAQDkthD2Q - HttpConnection Started.\r\n| [0.589s] Microsoft.AspNetCore.SignalR.Client.HubConnection Information: mrSZOGkNy-aHSAQDkthD2Q - Using HubProtocol 'json v1'.\r\n| [0.591s] Microsoft.AspNetCore.SignalR.Client.HubConnection Information: mrSZOGkNy-aHSAQDkthD2Q - HubConnection started.\r\n| [0.801s] TestLifetime Information: Finished test HubConnectionCanSendAndReceiveGroupMessages_WebSockets_json in 0.7998611s\r\n| [0.832s] TestLifetime Information: Finished test HubConnectionCanSendAndReceiveGroupMessages-WebSockets-json in 0.8303514s\r\n```\r\n\r\nOther tests within that build may have failed with a similar message, but they are not listed here. Check the link above for more info.\r\n\r\nThis test failed on 2.2.\r\n\r\nCC @muratg"}}
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