[LOGCXX-269] RollingFileAppender leaks memory on rollover

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 0.10.0
• Component/s: Appender
• Environment: Windows XP SP2, VC++6
• Assignee: Curt Arnold
• Reporter: Kenneth Paskett
• Created: 11/Apr/08 01:47
• Updated: 07/Aug/20 17:15
• Resolved: 07/Aug/20 17:15

Description

I downloaded apache-log4cxx-0.10.0.zip, built using the steps in http://logging.apache.org/log4cxx/building/vstudio.html

Then I begun using log4cxx0.10.0 in my VC6 project.
When I run the application developed using VC6 (MFC), I observed that the Mem Usage (windows task manager) increases by an average of 20KB whenever the logging file rolls over to another one.

Here is portions of my code.

using namespace std;
using namespace log4cxx;
using namespace log4cxx::helpers;

static LoggerPtr g_rootLogger;
char *g_strconfigFile1;

PropertyConfigurator::configure(g_strconfigFile1);
g_rootLogger = Logger::getRootLogger();

.
.
.

DWORD CmdOutput (....)
{
.
.
.

unsigned char *log4cxxBuf;

log4cxxBuf=new unsigned char[LOG4CXXBUFMAX];

if(log4cxxBuf!=NULL)

{ . . . LOG4CXX_DEBUG(g_rootLogger, "CmdOutput: OutDataBuffer = " << log4cxxBuf); . . . delete[] log4cxxBuf; }

else
dwReturnValue=ERROR_ALLOCATE_MEM;

return dwReturnValue;
}

log4cxx.properties

logDir=C:/SE/LOG
log4j.rootLogger=INFO, A1
log4j.appender.A1=org.apache.log4j.RollingFileAppender
log4j.appender.A1.File=${logDir}/SE.log
log4j.appender.A1.MaxFileSize=5MB
log4j.appender.A1.MaxBackupIndex=1000
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d

{dd MM yyyy HH:mm:ss}

%5p %L - %m%n

The CmdOutput function is called continuously in a separate thread until the "Stop" button is clicked.
This could run for weeks and undesirable if memory usage keep increasing.

Is there any problems with my codes, properties file?

Kindly advice.

Thanks You.