Monitoring linux service by SNMP agent

[MarcoUK]

Hi,
I need to monitoring collectd service on linux machine using SNMP agent.

This is my status:

snmpwalk -v 2c -c public 192.168.0.100 . | grep HOST-RESOURCES-MIB | grep collectd
HOST-RESOURCES-MIB::hrSWRunName.17231 = STRING: "collectdmon"
HOST-RESOURCES-MIB::hrSWRunName.17232 = STRING: "collectd"
HOST-RESOURCES-MIB::hrSWRunPath.17231 = STRING: "/usr/sbin/collectdmon"
HOST-RESOURCES-MIB::hrSWRunPath.17232 = STRING: "collectd"
HOST-RESOURCES-MIB::hrSWRunParameters.17231 = STRING: "-P /var/run/collectd.pid -- -C /etc/collectd/collectd.conf"
HOST-RESOURCES-MIB::hrSWRunParameters.17232 = STRING: "-C /etc/collectd/collectd.conf -f"
HOST-RESOURCES-MIB::hrSWInstalledName.28 = STRING: "collectd-core-5.x.x-x"
HOST-RESOURCES-MIB::hrSWInstalledName.494 = STRING: "collectd-x.x.x"

I created this item:

Name: snmp_proc_collectd
Type: SNMP agent
Key: snmp_proc_collectd
SNMP OID: HOST-RESOURCES-MIB::hrSWRunPath["index", "HOST-RESOURCES-MIB::hrSWRunName", "collectd"]
Type of information: Text

If I click on test I receive "collectd" as result.

Now I tried to create a trigger (alert in case don't found collecd as below:

Name: test_trigger_collectd
Severity: High
Expression: {hawkeye-servers:snmp_proc_collectd.regexp(collectd)}=0

but it doesn't alert in case of process id down

[tim.mooney]

You called the item "snmp_proc_auditd", but you're referencing snmp_proc_collectd in the trigger expression. Seems like a mismatch there.

[MarcoUK]

You called the item "snmp_proc_auditd", but you're referencing snmp_proc_collectd in the trigger expression. Seems like a mismatch there.

Thanks, I wrong to copy, I fixed it, but it doesn't work.

[MarcoUK]

I solved:

Name: test_trigger_collectd
Severity: High
Expression: {hawkeye-servers:snmp_proc_collectd.regexp("^(collectd)")}= 0