Well after some work I came across this example linked from another forum that
works.
First I'll also note that dev is not defined. I should have used device which
has an instance most of the time. I didnt see anything in the logs because
event-wide transforms log to zenhubs log whereas event-mapping transforms log
in zentrap.log
Although confusing they are still logged which is good. Now there are two ways
you can do this.
1st and easiest:
Navigate to /Events/Status/Snmp click More -> Transform paste code directly
below
Code:
if evt.summary.startswith('snmp agent down'):
evt.eventClassKey = "SnmpTest"
Now that sets an eventClassKey on the agent down event so we can now map it to
an event mapping.
Inside the eventmapping which matches the above eventClassKey paste the code
below into the transform.
Code:
# Rotate to the next SNMP community string when an agent goes down
if device and evt.summary.startswith('snmp agent down '):
strings = device.zSnmpCommunities
for i in range(len(strings)):
if device.zSnmpCommunity == strings[i]:
if i == len(strings)-1:
device.zSnmpCommunity = strings[0]
break
else:
device.zSnmpCommunity = strings[i+1]
break
2nd: Harder but wee bit faster.
The other way you can do this is to simply edit the source code for
$ZENHOME/Products/ZenRRD/zenperfsnmp.py
go to line 181 where you see the code for snmpStatusEvent. Make it look like
this
Code:
snmpStatusEvent = {'eventClass': Status_Snmp,
'component': 'snmp',
'eventGroup': 'SnmpTest',
'eventClassKey': 'SnmpTest'}
Notice all I added was the last line where we set the eventClassKey to
SnmpTest. You will need to restart zenperfsnmp before it uses the new code. If
you get any errors just fall back to the backup you made ;)
Now we dont need the eventwide transform which should speed up things if you
have a billion agent down events. Of course hand editing this code might ruin
your support contract with Zenoss or insult your mother but it works fine for
me. You will lose changes if you upgrade or anything like that.
Now all you need is an eventclass mapping under /Events/Status/Snmp which
matches the eventClassKey SnmpTest
Paste this code below into that transform and you should be golden
Code:
# Rotate to the next SNMP community string when an agent goes down
if evt.summary.startswith('snmp agent down '):
strings = device.zSnmpCommunities
for i in range(len(strings)):
if device.zSnmpCommunity == strings[i]:
if i == len(strings)-1:
device.zSnmpCommunity = strings[0]
break
else:
device.zSnmpCommunity = strings[i+1]
break
Enjoy.
-------------------- m2f --------------------
Read this topic online here:
http://community.zenoss.com/forums/viewtopic.php?p=15756#15756
-------------------- m2f --------------------
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