Name

LockFile

Synopsis

                  LockFile <path>filename
Default: logs/accept.lock
Server config

When Apache is compiled with USE_FCNTL_SERIALIZED_ACCEPT or USE_FLOCK_SERIALIZED_ACCEPT, it will not start until it writes a lock file to the local disk. If the logs directory is NFS mounted, this will not be possible. It is not a good idea to put this file in a directory that is writable by everyone, since a false file will prevent Apache from starting. This mechanism is necessary because some operating systems don’t like multiple processes sitting in accept() on a single socket (which is where Apache sits while waiting). Therefore, these calls need to be serialized. One way is to use a lock file, but you can’t use one on an NFS-mounted directory.