System.Data.SqlClient hangs on Linux (Docker) with SQL Server 2005

[giannoug]

We are observing a wierd behaviour with System.Data.SqlClient and Linux (Debian Jessie / Docker with microsoft/aspnetcore:1.1.0). When connecting to an SQL Server 2016 instance everything works fine. When connecting to SQL Server 2005, our application hangs indefinitely. Sometimes, an InvalidOperationException occurs stating: "The timeout period elapsed prior to obtaining a connection from the pool.". Everything works as expected on Windows.

Maybe a similar issue to #15287?

[saurabh500]

Sql server 2005 is out of extended support. I don't think we will be getting to this issue.
I will be happy to make this up for grabs.

[divega]

As recently announced in the .NET Blog, focus on new SqlClient features an improvements is moving to the new Microsoft.Data.SqlClient package. For this reason, we are moving this issue to the new repo at https://github.com/dotnet/SqlClient. We will still use https://github.com/dotnet/corefx to track issues on other providers like System.Data.Odbc and System.Data.OleDB, and general ADO.NET and .NET data access issues.