Is the Microsoft Enterprise Library 5.0 Logging Application Block thread safe?

Question

I have some code that will be logging using the Logging Application Block in Enterprise Library 5.0 from different threads. Is the LAB thread safe? Can I log like normal from different threads or will I need to synchronize the logging code so that is only used from one thread at a time?

score 9 · Accepted Answer · answered May 28 '10 at 07:14

9

Enterprise Library 5.0 logging is thread safe.

Before logging, EL checks the IsThreadSafe property of the TraceListener. If the specific TraceListener is not thread safe then it will perform a Monitor.Enter(listener); before calling the listener's TraceData method.

answered May 28 '10 at 07:14

Randy Levy

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i'm wondering if I should have been able to figure this out or if going to the source is what's required to find out – Aaron Anodide Apr 10 '12 at 16:46
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@Gabriel, I don't see any discussion of logging thread safety in the official docs only discussion about the Caching Block. I did see a third party site saying it is thread safe but better to verify. – Randy Levy Apr 11 '12 at 01:56

score 0 · Answer 2 · answered Apr 17 '13 at 05:24

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As far as I know,Enterprise Library 3.1 Logging is not thread safe. There is not lock around GetAvailableTraceListeners(IList traceListeners) call in LogWriter class, which used static in Logger class.

answered Apr 17 '13 at 05:24

xuhy

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Is the Microsoft Enterprise Library 5.0 Logging Application Block thread safe?

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