On Sun, Sep 7, 2014 at 4:30 PM, Jeff Trawick <[email protected]> wrote:
> > Apache httpd on Unix doesn't use locking. The file is opened in the > parent with O_APPEND. > > If the writers inherit that descriptor, all is okay for "small" buffers; > if a writer opens without O_APPEND, bad. > Thanks Jeff, In my tests over the last few days it's clear that buffer is about 4K (On CentOS, anyway). I wrote tens of gigs of logs using 50 processes and never say any intermixing of the logs at all with the message < 4K. With a larger log message it was easy to trigger the mixing of logs. Thanks for the information and confirmation. -- Bill Moseley [email protected]
