MDC ClassApache log4net™ SDK Documentation
Implementation of Mapped Diagnostic Contexts.
Inheritance Hierarchy


Namespace: log4net
Assembly: log4net (in log4net.dll) Version: 4.0

public sealed class MDC

The MDC type exposes the following members.


Public methodStatic memberClear
Clear all entries in the MDC
Public methodEquals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Public methodStatic memberGet
Gets the context value identified by the key parameter.
Public methodGetHashCode
Serves as a hash function for a particular type.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodStatic memberRemove
Removes the key value mapping for the key specified.
Public methodStatic memberSet
Add an entry to the MDC
Public methodToString
Returns a String that represents the current Object.
(Inherited from Object.)

Note Note

The MDC is deprecated and has been replaced by the Properties. The current MDC implementation forwards to the ThreadContext.Properties.

The MDC class is similar to the NDC class except that it is based on a map instead of a stack. It provides mapped diagnostic contexts. A Mapped Diagnostic Context, or MDC in short, is an instrument for distinguishing interleaved log output from different sources. Log output is typically interleaved when a server handles multiple clients near-simultaneously.

The MDC is managed on a per thread basis.

Thread Safety

Static members of this type are safe for multi-threaded operations. Instance members of this type are safe for multi-threaded operations.
See Also