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List:       net-snmp-patches
Subject:    [Net-snmp-patches] [ net-snmp-Patches-465545 ] snmpbulkwalk timeouts
From:       noreply () sourceforge ! net
Date:       2001-09-27 8:52:09
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Patches item #465545, was opened at 2001-09-27 01:52
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=312694&aid=465545&group_id=12694

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Olaf Kirch (okir)
Assigned to: Nobody/Anonymous (nobody)
Summary: snmpbulkwalk timeouts

Initial Comment:
On Linux we're seeing timeouts when doing a bulk walk
on the entire tree.

It turns out that there are two problems.

 1.	In hr_print.c, we run lpstat to get a list of
	printers (we moved from LPRng to CUPS lately)
	The output of lpstat is not cached however.

 2.	In hr_disk.c, all potential disk devices are
	openend one at a time. With CDROM devices
	this can take quite some time on Linux because
	it tries to detect the media; so the drive spins up
	and tries to read the CD.

	This can be avoided by opening the device
	with O_NDELAY.

I'm attaching the patch we've applied.

Cheers
Olaf

----------------------------------------------------------------------

You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=312694&aid=465545&group_id=12694

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