[LOG4NET-562] LogicalThreadContext is not per Thread

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Information Provided
• Affects Version/s: 2.0.8
• Fix Version/s: 2.0.8, 2.1.0
• Component/s: Other
• Environment: Windows 10, Visual Studio 17, .NET Framework 4.5.2
• Assignee: Dominik Psenner
• Reporter: Husain Alshehhi
• Created: 05/Apr/17 12:49
• Updated: 20/May/18 17:05
• Resolved: 20/May/18 17:05

Description

LogicalThreadContext values are spread to many threads when they shouldn't.

This is an example:

console.cs

            LogicalThreadContext.Properties["x-corralation-Id"] = "original-value";

            var list = new List<int> {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
            Parallel.ForEach(list, (i) =>
            {
                if (i == 3)
                    LogicalThreadContext.Properties["x-corralation-Id"] = "modified-value";

                logger.Info($"thread {i}.");
            });

this is the result

badresult.txt

{"timestamp":"2017-04-05T12:31:41.117Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 1.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.132Z", "level":"INFO", "x-corralation-Id" : "modified-value", "logger":"logger", "message":"thread 3.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.273Z", "level":"INFO", "x-corralation-Id" : "modified-value", "logger":"logger", "message":"thread 4.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.273Z", "level":"INFO", "x-corralation-Id" : "modified-value", "logger":"logger", "message":"thread 6.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.274Z", "level":"INFO", "x-corralation-Id" : "modified-value", "logger":"logger", "message":"thread 8.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.274Z", "level":"INFO", "x-corralation-Id" : "modified-value", "logger":"logger", "message":"thread 0.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.219Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 7.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.179Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 5.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.273Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 2.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.234Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 9.", "data":(null)} 

This is what I was expecting:

goodresult.txt

{"timestamp":"2017-04-05T12:31:41.117Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 1.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.132Z", "level":"INFO", "x-corralation-Id" : "modified-value", "logger":"logger", "message":"thread 3.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.273Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 4.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.273Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 6.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.274Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 8.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.274Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 0.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.219Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 7.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.179Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 5.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.273Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 2.", "data":(null)} 
{"timestamp":"2017-04-05T12:31:41.234Z", "level":"INFO", "x-corralation-Id" : "original-value", "logger":"logger", "message":"thread 9.", "data":(null)}