SNMP support for HAProxy Copyright 2007-2008 Krzysztof Piotr Oledzki Root OID: 1.3.6.1.4.1.29385.106 Files: - README: this file - haproxy.pl: Net-SNMP embedded perl module - haproxy_backend.xml: Cacti snmp-query definition for backends - haproxy_frontend.xml: Cacti snmp-query definition for frontends Install: cp haproxy.pl /etc/snmp/ grep -q "disablePerl false" /etc/snmp/snmpd.conf || echo "disablePerl false" >> /etc/snmp/snmpd.conf echo "perl do '/etc/snmp/haproxy.pl';" >> /etc/snmp/snmpd.conf Supported commands: - GET (snmpget, snmpbulkget): quite fast. - GETNEXT (snmpwalk, snmpbulkwalk): not so fast as requires to transfer and parse a lot of data during each step. Always use "get" instead of "walk" if that's possible. Supported OIDs: - 1.3.6.1.4.1.29385.106.1: get a variable from stats Usage: 1.3.6.1.4.1.29385.106.1.$type.$field.$iid.$sid - type is one of: 0) frontend 1) backend 2) server - field is one of: 0..32) CSV format variable 10001) index 10002) unique name - iid is a proxy id - sid is a service id (sid): 0 for frontends and backends, >= 1 for servers - 1.3.6.1.4.1.29385.106.2: get a variable from info Usage: 1.3.6.1.4.1.29385.106.2.$req.$varnr - req is one of: 0) get variable name 1) gat variable value Examples: - Get a list of frontends (type: 0) with status (field: 17): $ snmpbulkwalk -c public -v2c 192.168.0.1 1.3.6.1.4.1.29385.106.1.0.17 SNMPv2-SMI::enterprises.29385.106.1.0.17.1.0 = STRING: "OPEN" SNMPv2-SMI::enterprises.29385.106.1.0.17.47.0 = STRING: "OPEN" - Get a list of backends (type: 1) with index (field: 10001): $ snmpbulkwalk -c public -v2c 192.168.0.1 1.3.6.1.4.1.29385.106.1.1.10001 SNMPv2-SMI::enterprises.29385.106.1.1.10001.1.0 = STRING: "1.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1100.0 = STRING: "1100.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1101.0 = STRING: "1101.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1200.0 = STRING: "1200.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1201.0 = STRING: "1201.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1300.0 = STRING: "1300.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1400.0 = STRING: "1400.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1401.0 = STRING: "1401.0" SNMPv2-SMI::enterprises.29385.106.1.1.10001.1500.0 = STRING: "1500.0" (...) - Get a list of servers (type: 2) with unique name (field: 10002): $ snmpbulkwalk -c public -v2c 192.168.0.1 1.3.6.1.4.1.29385.106.1.2.10002 SNMPv2-SMI::enterprises.29385.106.1.2.10002.1100.1001 = STRING: "backend1/s2" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1100.1002 = STRING: "backend1/s5" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1100.1003 = STRING: "backend1/s6" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1100.1012 = STRING: "backend1/s7" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1101.1001 = STRING: "backend2/s9" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1101.1002 = STRING: "backend2/s10" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1101.1003 = STRING: "backend2/s11" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1101.1012 = STRING: "backend2/s12" SNMPv2-SMI::enterprises.29385.106.1.2.10002.1200.1001 = STRING: "backend3/s8" (...) - Get a list of servers (type: 2) with weight (field: 18) in proxy 4300: $ snmpbulkwalk -c public -v2c 192.168.0.1 1.3.6.1.4.1.29385.106.1.2.18.4300 SNMPv2-SMI::enterprises.29385.106.1.2.18.4300.1001 = STRING: "40" SNMPv2-SMI::enterprises.29385.106.1.2.18.4300.1002 = STRING: "25" SNMPv2-SMI::enterprises.29385.106.1.2.18.4300.1003 = STRING: "40" SNMPv2-SMI::enterprises.29385.106.1.2.18.4300.1012 = STRING: "80" - Get total sessions count (field: 7) in frontend (type: 1), sid.iid: 47.0 (proxy #47): snmpget -c public -v2c 192.168.0.1 enterprises.29385.106.1.0.7.47.0 SNMPv2-SMI::enterprises.29385.106.1.0.7.47.0 = STRING: "1014019" - Get a list of available variables (req: 0): $ snmpbulkwalk -c public -v2c 192.168.0.1 1.3.6.1.4.1.29385.106.2.0 SNMPv2-SMI::enterprises.29385.106.2.0.0 = STRING: "Name" SNMPv2-SMI::enterprises.29385.106.2.0.1 = STRING: "Version" SNMPv2-SMI::enterprises.29385.106.2.0.2 = STRING: "Release_date" SNMPv2-SMI::enterprises.29385.106.2.0.3 = STRING: "Nbproc" SNMPv2-SMI::enterprises.29385.106.2.0.4 = STRING: "Process_num" SNMPv2-SMI::enterprises.29385.106.2.0.5 = STRING: "Pid" SNMPv2-SMI::enterprises.29385.106.2.0.6 = STRING: "Uptime" SNMPv2-SMI::enterprises.29385.106.2.0.7 = STRING: "Uptime_sec" SNMPv2-SMI::enterprises.29385.106.2.0.8 = STRING: "Memmax_MB" SNMPv2-SMI::enterprises.29385.106.2.0.9 = STRING: "Ulimit-n" SNMPv2-SMI::enterprises.29385.106.2.0.10 = STRING: "Maxsock" SNMPv2-SMI::enterprises.29385.106.2.0.11 = STRING: "Maxconn" SNMPv2-SMI::enterprises.29385.106.2.0.12 = STRING: "CurrConns" - Get a variable (req: 1), varnr: 7 (Uptime_sec): $ snmpget -c public -v2c 192.168.0.1 1.3.6.1.4.1.29385.106.2.1.7 SNMPv2-SMI::enterprises.29385.106.2.1.7 = STRING: "18761"