**************> QUESTION level 1 --> level 2 SPECIALIST <**************
Question:
When running lpstat to display the status of his printer queues
a customer complains about a too long delay when remote queues
don't answer.
Is it possible to configure TCP/IP (or something else) to reduce
the waiting period? I mean reduce the number of retries and
interval between them before a printer is considered down.
Thanks, best ragards, Marina.
************** ANSWER level 2 -- level 1 SPECIALIST **************
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA
PMR 00085,998,758 was created on 97/02/06 at 12:56:47.
************** ANSWER level 2 -- level 1 SPECIALIST **************
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA
==== ASGN: SGARDNER AT WTSCPOK ================= DATE:970206
TIME:0811
Received by Austin ITSC and assigned to AIXOPSYS.
Your question has been received and assigned to a specialist. Please
wait for a reply. Thank you
************** ANSWER level 2 -- level 1 SPECIALIST **************
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA
==== RESP: AIXOPSYS AT WTSCPOK ================= DATE:970206
TIME:0924
YOUR ITEM HAS BEEN RECEIVED.
************** ANSWER level 2 -- level 1 SPECIALIST **************
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA
==== RESP: AIXOPSYS AT WTSCPOK ================= DATE:970206
TIME:1559
RESPONSE:
When doing an lpstat on a remote queue, rembak will try to contact
the remote host's lpd to get the status and if the server is offline
or not running its lpd, then typically the time-out is 60 seconds.
Though there is a -T flag on rembak (which can be added into the
/etc/qconfig file: backend = /usr/lpd/rembak -T ## ) the units are
in minutes, so you can't really decrease the value.
Attached below is a small C program that checks only the status of
the local queues - it never contacts the remote system at all.
Some characters may not be displayed properly or filtered out by
reading this C source into the system.
/*
Author: Mark
Lessor
IBM Corp.
12/21/95
A much quicker way to get lpstat info that lpstat¢
*/
#include stdio.h
#include IN/stfile.h
#include IN/backend.h
#include sys/types.h
#include dirent.h
int main()
DIR *dp; /* The directory we want look at */
struct dirent *dirp; /* A directory entry (file) */
char filename.80.;
/* Open the directory with the print queue status files */
if ((dp = opendir("/var/spool/lpd/stat")) == NULL)
exit(1);
/* One at a time get the names of files in the status directory */
while ((dirp = readdir(dp)) ¢= NULL)
/* If this file name begins with s. then it's a status file */
if(¢strncmp("s.", dirp->d_name, 2))
{
sprintf(filename, "/var/spool/lpd/stat/");
strcat(filename, dirp->d_name);
getstatus(filename);
}
int getstatus(pathname)
char *pathname;
/* File that has status for this print queue */
FILE *status_file;
char *filename;
int n;
/* All info about a print queue status is in a stfile struct */
struct stfile status;
status_file = fopen(pathname, "r");
if (status_file == NULL) {
printf("Error opening status file %s\n", filename);
exit(1);
}
/* Read sizeof(struct stfile) bytes from stat file into status */
n = read(fileno(status_file), (char *)&status, sizeof(struct stfile));
/* Queue status is found in byte 3 of the stfile structure
This will be 1 for an enabled queue, 4 for a disabled
or DOWN queue as defined in /usr/include/IN/backend.h
*/
filename = pathname + strlen(pathname);
while (*(filename - 3) ¢= '/')
filename--;
printf("%-30s ", filename);
switch (status.s_status)
{
case READY: printf("READY\n");
break;
case RUNNING: printf("RUNNING\n");
break;
case WAITING: printf("WAITING\n");
break;
case OFF: printf("DOWN\n");
break;
default: printf("UNKNOWN\n");
break;
}
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