Bug 1131175

Missing config for ovirt-notifier:

< .../notifier.conf.d/20-snmp.conf>
#-------------------------#
# SNMP_TRAP Notifications #
#-------------------------#
# Send v2c snmp notifications

# Minimum SNMP configuration
#
# Create /etc/ovirt-engine/notifier/notifier.conf.d/20-snmp.conf with:
# SNMP_MANAGERS="host"
FILTER="include:*(snmp:) ${FILTER}"

# Default whitespace separated IP/DNS list with optional port, default is 162.
# SNMP_MANAGERS="manager1.example.com manager2.example.com:164"
SNMP_MANAGERS="localhost"

# Default SNMP Community String.
SNMP_COMMUNITY=public

# Default TRAP Object Identifier for alerts.
#
# iso.organization.DoD.Internet.private.enterprises.redhat.ovirt-engine.notifications.audit-log
# 1.3.6.1.4.1.2312.13.1.1
SNMP_OID=.1.3.6.1.4.1.2312.13.1.1

#
# SNMP profile support
#
# Multiple SNMP profiles are supported.
# Specify profile settings by using _profile suffix,
# for example, to define a profile to sent specific
# message to host3, specify:
# SNMP_MANAGERS_profile1=host3
# FILTER="include:VDC_START(snmp:profile1) ${FILTER}"
#
</ .../notifier.conf.d/20-snmp.conf>

Local snmptrapd gets the traps, but the trap has missing sysUptime field.

Other tools - like HP-Openview - get confused by this missing field and report wrong variables for this trap.

According to http://www.snmp4j.org/doc/org/snmp4j/package-summary.html / SNMPv2c/SNMPv3 INFORM PDU sysUptime needs to be filled before sending the trap.

Recent version of Snmp.java (http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=backend/manager/tools/src/main/java/org/ovirt/engine/core/notifier/transport/snmp/Snmp.java;h=f7cf51a659393808abf0bf8372900461df0d8690;hb=HEAD) does not include sysUptime in PDU.

Alon Should we supply this?

We can add at Snmp.java:
v2pdu.add(new VariableBinding(SnmpConstants.sysUpTime, value));

Since AFAIK notifier always runs on the engine's machine it should return
the machines uptime? 

Should I read /proc/uptime?

yes, interesting that this is not injected automatically.

I think that it will be sufficient if startTime is the System.nanoTime() of the time in which service was started.

pdu.add(new VariableBinding(SnmpConstants.sysUpTime, new TimeTicks((System.nanoTime() - startTime) / 10000)));

ok, ovirt-engine-tools-3.5.0-0.0.master.20140911085455.gite1c5ffd.el6.noarch

# tcpdump -i eth0 -nn -ttt -v port 162                                                                                                                     
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
00:00:00.000000 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 304)
    10.34.60.239.49121 > 10.34.63.204.162:  { SNMPv2c { V2Trap(257) R=379723242  .1.3.6.1.6.3.1.1.4.1.0=.1.3.6.1.4.1.2312.13.1.1.0.31 .1.3.6.1.2.1.1.3.0=48844 .1.3.6.1.4.1.2312.13.1.1.0.31.0="User admin logged out." .1.3.6.1.4.1.2312.13.1.1.0.31.1="NORMAL" .1.3.6.1.4.1.2312.13.1.1.0.31.2="alertMessage" .1.3.6.1.4.1.2312.13.1.1.0.31.3="2014-09-16 14:55:37.517" .1.3.6.1.4.1.2312.13.1.1.0.31.4="USER_VDC_LOGOUT" .1.3.6.1.4.1.2312.13.1.1.0.31.5="admin" } }

oVirt 3.5 has been released and should include the fix for this issue.