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Bug 193093 - snmp backend very slow
snmp backend very slow
Product: Fedora
Classification: Fedora
Component: cups (Show other bugs)
i386 Linux
medium Severity medium
: ---
: ---
Assigned To: Tim Waugh
Depends On:
Blocks: FC6Target
  Show dependency treegraph
Reported: 2006-05-25 02:41 EDT by Stephen Moore
Modified: 2007-11-30 17:11 EST (History)
1 user (show)

See Also:
Fixed In Version: 1.2.2-1.8
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2006-08-30 12:11:45 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
snmp log as requested (287.66 KB, text/plain)
2006-05-28 22:55 EDT, Stephen Moore
no flags Details
updated snmp log as requested (87.93 KB, text/plain)
2006-06-05 22:19 EDT, Stephen Moore
no flags Details
snmp log (7.71 KB, text/plain)
2006-06-07 05:29 EDT, MW
no flags Details

  None (edit)
Description Stephen Moore 2006-05-25 02:41:06 EDT
Description of problem:
Using the web admin menu clicking on the administration tab causes 100% cpu and
an extended delay (minutes not seconds)

Version-Release number of selected component (if applicable):

How reproducible:
Slow every time

Steps to Reproduce:
1.Open web browser
3.click on administration and wait....
Actual results:
Works eventually

Expected results:
Works quickly

Additional info:
Comment 1 Tim Waugh 2006-05-25 05:00:47 EDT
What processor are you using, and what is it's clock speed?  Also, can you
attach /var/log/cups/error_log?  Thanks.
Comment 2 Stephen Moore 2006-05-25 21:56:24 EDT
I have tried multiple machines, my personal machine is a dual core amd 4400

I [26/May/2006:09:05:46 +1000] Full reload complete.
I [26/May/2006:09:05:46 +1000] Listening to :::631 on fd 2...
I [26/May/2006:09:05:46 +1000] Listening to on fd 3...
E [26/May/2006:09:05:46 +1000] Unable to set ACLs on root certificate
"/var/run/cups/certs/0" - Operation not supported
I [26/May/2006:09:05:52 +1000] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=14412)
I [26/May/2006:09:05:52 +1000] Started "/usr/lib/cups/daemon/cups-deviced"
I [26/May/2006:09:06:22 +1000] cupsdCloseClient: SSL shutdown successful!
W [26/May/2006:09:06:22 +1000] [cups-deviced] Backend "snmp" did not respond
within 30 seconds!
I [26/May/2006:09:06:24 +1000] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=14436)
I [26/May/2006:09:06:24 +1000] Started "/usr/lib/cups/daemon/cups-deviced"
W [26/May/2006:09:06:55 +1000] [cups-deviced] Backend "snmp" did not respond
within 30 seconds!
E [26/May/2006:09:09:16 +1000] PID 14412 (/usr/lib/cups/cgi-bin/admin.cgi)
crashed on signal 9!
I [26/May/2006:09:09:16 +1000] Hint: Try setting the LogLevel to "debug" to find
out more.
I [26/May/2006:09:10:57 +1000] cupsdCloseClient: SSL shutdown successful!
I [26/May/2006:09:10:57 +1000] cupsdCloseClient: SSL shutdown successful!
Comment 3 Tim Waugh 2006-05-26 06:40:20 EDT
Please run this command:

strace -t /usr/lib/cups/backend/snmp 2>snmp.log

and attach the snmp.log file.  Thanks.
Comment 4 Stephen Moore 2006-05-28 22:55:45 EDT
Created attachment 130164 [details]
snmp log as requested
Comment 5 Stephen Moore 2006-05-29 19:28:02 EDT
We have tracked it down from that log to a particular printer. A Kyocera FS1010
with a nic. When we turn it off the admin page loads much faster. I would not
mind if you closed this call.

Comment 6 Tim Waugh 2006-05-30 06:37:11 EDT
Thanks.  It's something that would be very good to fix, so I'll keep this report
Comment 7 MW 2006-05-31 17:33:16 EDT
The same effect on freshly installed FC5, updated with old HP Laserjet 4
connected thriugh lpt port.
On IBM Thinkpad t41 with fc5 with the same config everything works OK.
Comment 8 Tim Waugh 2006-06-01 05:40:19 EDT
Reported upstream:

Comment 9 Tim Waugh 2006-06-02 10:41:38 EDT
Could you please run this command:

CUPS_DEBUG_LEVEL=3 /usr/lib/cups/backend/snmp 2>&1 >snmp.log

and attach the snmp.log file here?  Thanks.
Comment 10 Stephen Moore 2006-06-05 22:19:23 EDT
Created attachment 130593 [details]
updated snmp log as requested
Comment 11 MW 2006-06-07 05:29:26 EDT
Created attachment 130663 [details]
snmp log
Comment 12 Tim Waugh 2006-07-28 11:45:39 EDT
Please try this test update:


You should be able to install this using the command:

  yum --enablerepo=updates-testing 'cups*'

as root.  Does the backend still take a long time?  If so, please show me the
snmp.log from:

  CUPS_DEBUG_LEVEL=3 /usr/lib/cups/backend/snmp 2>&1 >snmp.log

with the new (1.2.2-1.2) packages installed.  Thanks.
Comment 13 MW 2006-08-04 05:39:14 EDT
No, backend seems to work ok. The admin page shows after a short time with
proper content. Thnx

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