TcpConnectionSpec.An_Outgoing_Connection_Must_Send_Only_One_ClosedEvent_To_The_Handler_If_The_Handler_Commanded_The_Close intermittent test failure

[Aaronontheweb]

Saw an intermittent failure on TcpConnectionSpec.An_Outgoing_Connection_Must_Send_Only_One_ClosedEvent_To_The_Handler_If_The_Handler_Commanded_The_Close in #1169.

Full build log is available here http://petabridge-ci.cloudapp.net/viewLog.html?buildId=1696&buildTypeId=AkkaNet_AkkaNetPrBuild&guest=1

[fergusn]

I will spin up a couple of instances on AWS to try and reproduce this more reliably. Should I create PR to skip TcpConnectionSpec temporarily while I look into this?

[Aaronontheweb]

@willieferguson I think it'd be useful not to skip it for now - see how often it actually comes up in subsequent PRs built on the CI servers. Plus it's also possible that @rogeralsing's PR #1169 didn't have your latest racy spec fix pulled into it, which might explain this.

The CI server build agents run on Azure Standard M4 instances with 2 cores and 8 GB of RAM. They're designed to be semi-lightweight machines as they help expose racy / soft real-time issues more often than our personal development machines do.