That is very strange. Is there anything special about the devices? For
a while we had some issues with devices that responded from addresses
other than their management IP address. Recently we found that modern
Windows boxes had small (or no) buffers for SNMP packets... parallel
requests were being dropped. Both of those should be fixed.
Send the strace results if you continue to have problems.
-Eric
Todd Michael Hebert wrote:
The command you gave caused the proper directories and RRD files to be
created and hopefully they'll start populating. (So far there's no
data for the network interfaces.)
So.. hopefully that's fixed.. although the reason it didn't create the
files in the first place is a mystery to me.
Now..the only mystery I'm left with is that I keep getting messages
from this device saying that SNMP is down.. but if you look at the
monitor on the status page.. it says SNMP is up, and on the OS page..
it says SNMP is up.. but I keep getting events saying SNMP is down.
I just find it odd that there isn't any problem with collecting the
data from the SNMP agent on the box..
The zenperfsnmp.log file just says that the SNMP agent is down on both
devices, and that everything else was collected properly.
Todd M. Hebert
Eric Newton wrote:
These errors simply mean that the expected RRD files are not there...
which we can infer from the lack of graphs.
How about log messages for zenperfsnmp?
What do you get when you run:
$ zenperfsnmp run -v 10 -d 'suspicious device'
If you get timeout errors, send me the result of this:
$ strace -s 1000 -e trace=network zenperfsnmp run -v 10 -d
'suspicious device'
That will give me packets to decode. Please send off-list.
-Eric
Todd Michael Hebert wrote:
I've had 2 devices that were previously monitored that just refuse
to monitor properly now.
The services are monitored, but I keep getting messages about the
SNMP service being down, even though I can collect the configuration.
I went as far as to delete the two from the system, delete the
folders containing their perf information, and then re-add them in
Zenoss.. but it still won't monitor the network activity. Nothing
in the machine's configuration has changed as far as SNMP goes.
I'm able to snmpwalk the systems without any problems, from the box
running Zenoss.
I'm getting these for errors in the log:
2006-08-14T15:52:34 ERROR Zope.SiteErrorLog
http://admin.iil.ie:8080/zport/RenderServer/render
Traceback (most recent call last):
File "/usr/local/zenoss/lib/python/ZPublisher/Publish.py", line
114, in publish
request, bind=1)
File "/usr/local/zenoss/lib/python/ZPublisher/mapply.py", line 88,
in mapply
if debug is not None: return debug(object,args,context)
File "/usr/local/zenoss/lib/python/ZPublisher/Publish.py", line
40, in call_object
result=apply(object,args) # Type s<cr> to step into published
object.
File "/usr/local/zenoss/Products/ZenRRD/RenderServer.py", line 82,
in render
rrdtool.graph(*gopts)
error: opening
'/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth0/ifInOctets.rrd':
No such file or directory
------
2006-08-14T15:52:34 ERROR RenderServer failed generating graph
Traceback (most recent call last):
File "/usr/local/zenoss/Products/ZenRRD/RenderServer.py", line 82,
in render
rrdtool.graph(*gopts)
error: opening
'/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth0/ifInUcastPackets.rrd':
No such file or directory
------
2006-08-14T15:52:34 WARNING RenderServer
/tmp/renderserver/graph-279977be9456419fb553a58ba8a7fbe118000.png
--start=1155548854 --end=1155566854 --img
format=PNG -F -E --height=100 --width=500 --vertical-label=Pkts/sec
DEF:ds0=/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth0/
ifInUcastPackets.rrd:ds0:AVERAGE AREA:ds0#00cc00:ifInUcastPackets
GPRINT:ds0:LAST:cur\:%0.2lf%s GPRINT:ds0:AVERAGE:avg\:%0.2lf%s
GPRINT:ds0:MAX:max\
:%0.2lf%s\j
DEF:ds1=/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth0/ifOutUcastPackets.rrd:ds0:AVERAGE
LINE1:ds1#0000ff:ifOut
UcastPackets GPRINT:ds1:LAST:cur\:%0.2lf%s
GPRINT:ds1:AVERAGE:avg\:%0.2lf%s GPRINT:ds1:MAX:max\:%0.2lf%s\j
------
2006-08-14T15:52:34 ERROR RenderServer failed generating graph
Traceback (most recent call last):
File "/usr/local/zenoss/Products/ZenRRD/RenderServer.py", line 82,
in render
rrdtool.graph(*gopts)
error: opening
'/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth0/ifInErrors.rrd':
No such file or directory
------
2006-08-14T15:52:34 WARNING RenderServer
/tmp/renderserver/graph-bff1960d4d8c4a84a85236d8f73a7bc718000.png
--start=1155548854 --end=1155566854 --img
format=PNG -F -E --height=100 --width=500
--vertical-label=Errors/sec
DEF:ds0=/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth
0/ifInErrors.rrd:ds0:AVERAGE AREA:ds0#00cc00:ifInErrors
GPRINT:ds0:LAST:cur\:%0.2lf%s GPRINT:ds0:AVERAGE:avg\:%0.2lf%s
GPRINT:ds0:MAX:max\:%0.2lf%s\
j
DEF:ds1=/usr/local/zenoss/perf/Devices/<servername>/os/interfaces/eth0/ifOutErrors.rrd:ds0:AVERAGE
LINE1:ds1#0000ff:ifOutErrors GPRINT:ds
1:LAST:cur\:%0.2lf%s GPRINT:ds1:AVERAGE:avg\:%0.2lf%s
GPRINT:ds1:MAX:max\:%0.2lf%s\j
------
2006-08-14T15:52:40 ERROR RenderServer failed generating summary
Traceback (most recent call last):
File "/usr/local/zenoss/Products/ZenRRD/RenderServer.py", line
122, in currentValues
values = rrdtool.graph(*gopts)[2]
error: opening
'/usr/local/zenoss/perf/Devices/<servername>/sysUpTime.rrd': No such
file or directory
------
2006-08-14T15:52:40 WARNING RenderServer /dev/null
DEF:x0_r=/usr/local/zenoss/perf/Devices/<servername>/sysUpTime.rrd:ds0:AVERAGE
VDEF:v0=x
0_r,LAST PRINT:v0:%.2lf --end=now --start=now-300
------
2006-08-14T15:52:40 ERROR zen.RRDView Unable to cache value for
sysUpTime
Any ideas on how to track this down?
I am, as the Zenoss user, and the root user, able to create files on
the filesystem.
Todd M. Hebert
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