File locking issues
-------------------
Key: LOG4NET-99
URL: http://issues.apache.org/jira/browse/LOG4NET-99
Project: Log4net
Issue Type: Bug
Components: Appenders
Affects Versions: 1.2.10
Environment: Windows XP, NET 2.0
Reporter: Graham
Priority: Critical
Hi,
I wonder if you can throw some light / provide a solution for the problem which
I am having using Log4Net under .NET 2.0 (v 1.2.10) (problem also seems to
occur under v1.2.9) After setting up a logger to log to the console, provide
trace output and to log to an XML file using a minimal lock, the following
calls are fine...
(i.e. both messages find their way to the file)
logger.warn(msg);
logger.warn(msg);
this is also works without a problem
logger.fatal(msg);
logger.fatal(msg);
however if I do the following;
logger.warn(msg);
logger.critical(msg);
the second message never gets written to the file. The console error stream
tells me it was due to a locking problem. The exact message as follows;
"log4net:ERROR [RollingFileAppender] Unable to acquire lock on file
C:\Tests.XML. The process cannot access the file 'C:\Tests.XML' because it is
being used by another process."
In addition, if I attempt to open a stream to the file after making a logging
call then an exception will be thrown (message similar to above)
UNLESS I open one which is read only
I have also found that although log4net seems to be able to deal with problem
when two calls are made in the same scope at the same threshold, (i.e. it will
write both messages to the file), but trying to open a stream to the file
inbetween calls still throws an exception.
Regards,
Graham
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