log4cplus-devel

[Log4cplus-devel] Mutex lock application

[Sylvain B. <syl...@la...>]

Hi,

I'm using log4cplus-1.0.4 with socket and file appender. My application
is a web server. When the application received many request, log4cplus
lock the application at line 160 in "appenderattachableimpl.cxx" :

int
AppenderAttachableImpl::appendLoopOnAppenders(const
spi::InternalLoggingEvent& event) const
{
    int count = 0;

    LOG4CPLUS_BEGIN_SYNCHRONIZE_ON_MUTEX( appender_list_mutex )
        for(ListType::const_iterator it=appenderList.begin();
            it!=appenderList.end();
            ++it)

Is it a bug or a bad system configuration (not enough shared memory, etc.) ?

Thanks,

Ruddy32

Re: [Log4cplus-devel] Mutex lock application

[Václav H. <v.h...@sh...>]

 On Tue, 28 Jun 2011 09:33:55 +0200, Sylvain Bonnemaison wrote:
> Hi,
>
> I'm using log4cplus-1.0.4 with socket and file appender. My 
> application
> is a web server. When the application received many request, 
> log4cplus
> lock the application at line 160 in "appenderattachableimpl.cxx" :
>
> int
> AppenderAttachableImpl::appendLoopOnAppenders(const
> spi::InternalLoggingEvent& event) const
> {
>     int count = 0;
>
>     LOG4CPLUS_BEGIN_SYNCHRONIZE_ON_MUTEX( appender_list_mutex )
>         for(ListType::const_iterator it=appenderList.begin();
>             it!=appenderList.end();
>             ++it)
>
> Is it a bug or a bad system configuration (not enough shared memory, 
> etc.) ?
 It could be a bug. Try to compile with debugging symbols and try to 
 obtain call stacks of all threads for analysis.

-- 
 VH