Hi,
Can I just ask a further question about this....
What is causing the load such that the main lpd process is so busy?
Does the size of the queues affect how much lpd does? This machine is
only serving 8 printers and when the load has been really high, it has
only ever been one or two printers with large queues - the other
queues have been empty.
Cheers
Toby
> These processes are 'zombies' waiting for the main LPD process to
> harvest (wait) for them. The LPD code is waiting in a select
> loop for either a process to exit or for a connection.
>
> Setup_waitpid_break();
> errno = 0;
> fd_available = select( max_socks,
> FD_SET_FIX((fd_set *))&readfds,
> FD_SET_FIX((fd_set *))0,
> FD_SET_FIX((fd_set *))0, timeout );
> err = errno;
> Setup_waitpid();
>
> plp_signal_t sigchld_handler (int signo)
> {
> signal( SIGCHLD, SIG_DFL );
> write(Lpd_request,"\n", 1);
> }
>
> void Setup_waitpid (void)
> {
> signal( SIGCHLD, SIG_DFL );
> }
>
> void Setup_waitpid_break (void)
> {
> (void) plp_signal_break(SIGCHLD, sigchld_handler);
> }
>
> So under load, the LPD server will probably wait in the select for
> a while.
>
> Patrick
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