Hi, What do you expect to synchronize? writing into the buffer or file? The answer is also YES: http://apache-logging.6191.n7.nabble.com/thread-safe-log4cxx-td32766.html
If you want you may output the thread id and see that for all your 100+ threads everything works: http://stackoverflow.com/questions/9246677/c-thread-name-map-and-log4cxx or http://stackoverflow.com/questions/9082413/add-process-id-to-log-file-name-in-log4cxx or http://stackoverflow.com/questions/4286089/how-to-log-process-id-using-log4cxx-or-log4j So, as a conclusion, a simple YES! Alex On Wed, Jun 26, 2013 at 7:14 PM, Pedro Lamarão <pedro.lama...@prodist.com.br > wrote: > Hi, > > can anyone share information on usage of log4cxx in systems with 100+ > concurrent threads? > > We have so far not seen anything wrong, but we have also found very > little explicit thread synchronization in the code base. > > Is log4cxx::LogManager etc. thread safe? > > > -- > Pedro Lamarão Rosa e Silva > Prodist Technologies > http://www.prodist.com.br/ > "Securing Transaction Systems" > Tel.: (21) 4062-7188 > >
