On Sat, Sep 6, 2014 at 10:31 AM, Bill Moseley <mose...@hank.org> wrote:
> Apache 2.2.15 on Linux. > > When Apache children send output to stderr it ends up in my error_log file. > > Does Apache have any mechanism to prevent intermixing of this output? > That is, if all Apache children write large ( but < 4k) strings to stderr > does Apache have anything to prevent inter mixing of the output? > > Apache doesn't do any locking or use semaphores to prevent concurrent > writing to the log, correct? > > > -- > Bill Moseley > mose...@hank.org > 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. -- Born in Roswell... married an alien... http://emptyhammock.com/
