Discovery action - snmp received value not like

[pedropilla]

Hi, I'm struggling with discovery action, I want exclude from network discovery hosts with sysname like "POP", "RT-SCM", "SCM", looks pretty simple but isnt working and I'll apreciate some tips if possible.

I have a discovery network rule checking 172.20.0.0/24 and only SNMPv2 agent "1.3.6.1.2.1.1.5.0" (aka SNMPv2-MIB::sysName.0) and this is the uniqueness criteria, and a action rule this way:

Discovery check = 172.20.0: SNMPv2 agent "1.3.6.1.2.1.1.5.0"
Discovery rule = 172.20.0
Received value not like ^POP
Received value not like ^RT-SCM
Received value not like RT-SCM
Received value not like rt-scm
Received value not like pop
Received value not like POP

Looking the logs, for me looks like he is receiving empty value to compare with the filters, I'm doing something wrong?

Thanks!


The logs:

   268:20170725:145409.008 In process_check()
   268:20170725:145409.008 process_check() port:161
   268:20170725:145409.008 In discover_service()
   268:20170725:145409.008 In substitute_simple_macros() data:'r0ut3rb0ard'
   268:20170725:145409.008 In substitute_key_macros() data:'1.3.6.1.2.1.1.5.0'
   268:20170725:145409.008 End of substitute_key_macros():SUCCEED data:'1.3.6.1.2.1.1.5.0'
   268:20170725:145409.008 In get_values_snmp() host:'' addr:'172.20.0.9' num:1
   268:20170725:145409.008 In zbx_snmp_open_session()
   268:20170725:145409.008 SNMP [[email protected]:161]
   268:20170725:145409.008 End of zbx_snmp_open_session()
   268:20170725:145409.008 In zbx_snmp_process_standard()
   268:20170725:145409.008 In zbx_snmp_translate() oid:'1.3.6.1.2.1.1.5.0'
   268:20170725:145409.008 End of zbx_snmp_translate() oid_translated:'1.3.6.1.2.1.1.5.0'
   268:20170725:145409.008 In zbx_snmp_get_values() num:1 level:0
   268:20170725:145409.010 zbx_snmp_get_values() snmp_synch_response() status:0 s_snmp_errno:0 errstat:0 mapping_num:1
   268:20170725:145409.010 In zbx_snmp_set_result() type:4 value_type:1 data_type:0
   268:20170725:145409.010 In zbx_snmp_get_octet_string()
   268:20170725:145409.010 zbx_snmp_get_octet_string() full value:'STRING: POP Granja 4 Irmaos: C.E.' hint:'255a'
   268:20170725:145409.010 End of zbx_snmp_get_octet_string():'POP Granja 4 Irmaos: C.E.'
   268:20170725:145409.010 End of zbx_snmp_set_result():SUCCEED
   268:20170725:145409.010 End of zbx_snmp_get_values():SUCCEED
   268:20170725:145409.010 End of zbx_snmp_process_standard():SUCCEED
   268:20170725:145409.010 In zbx_snmp_close_session()
   268:20170725:145409.010 End of zbx_snmp_close_session()
   268:20170725:145409.010 End of get_values_snmp()
   268:20170725:145409.010 End of discover_service():SUCCEED
   268:20170725:145409.010 query [txnlev:1] [begin;]
   268:20170725:145409.011 In DBlock_record()
   268:20170725:145409.011 query [txnlev:1] [select null from dchecks where dcheckid=3 and druleid=2 for update]
   268:20170725:145409.012 End of DBlock_record():SUCCEED
   268:20170725:145409.012 In discovery_update_service() ip:'172.20.0.9' dns:'pop-granja-4-irmaos.noc.dns' port:161 status:0 value:'POP Granja 4 Irmaos: C.E.'
   268:20170725:145409.012 In discovery_register_host() ip:'172.20.0.9' status:0 value:'POP Granja 4 Irmaos: C.E.'
   268:20170725:145409.012 query [txnlev:1] [select dh.dhostid,dh.status,dh.lastup,dh.lastdown from dhosts dh,dservices ds where ds.dhostid=dh.dhostid and ds.dcheckid=3 and ds.value='POP Granja 4 Irmaos: C.E.' order by dh.dhostid]
   268:20170725:145409.014 host at 172.20.0.9 is already in database
   268:20170725:145409.014 End of discovery_register_host()
   268:20170725:145409.014 In discovery_register_service() ip:'172.20.0.9' port:161 key:'1.3.6.1.2.1.1.5.0'
   268:20170725:145409.014 query [txnlev:1] [select dserviceid,dhostid,status,lastup,lastdown,value,dns from dservices where dcheckid=3 and type=11 and key_='1.3.6.1.2.1.1.5.0' and ip='172.20.0.9' and port=161]
   268:20170725:145409.015 service is already in database
   268:20170725:145409.015 End of discovery_register_service()
   268:20170725:145409.015 In discovery_update_service_status()
   268:20170725:145409.015 In process_events() events_num:1
   268:20170725:145409.015 In correlate_events_by_default_rules()
   268:20170725:145409.015 End of correlate_events_by_default_rules()
   268:20170725:145409.015 In DCget_nextid() table:'events' num:1
   268:20170725:145409.015 End of DCget_nextid() table:'events' [488331:488331]
   268:20170725:145409.015 query [txnlev:1] [insert into events (eventid,source,object,objectid,clock,ns,value) values (488331,1,2,188,1501005249,0,0);
]
   268:20170725:145409.016 In process_actions() events_num:1
   268:20170725:145409.016 In zbx_dc_get_actions_eval()
   268:20170725:145409.016 End of zbx_dc_get_actions_eval() actions:2
   268:20170725:145409.016 In check_action_conditions() actionid:8
   268:20170725:145409.016 In check_action_condition() actionid:8 conditionid:26 cond.value:'RT-SCM' cond.value2:''
   268:20170725:145409.016 In check_discovery_condition()
   268:20170725:145409.016 query [txnlev:1] [select value from dservices where dserviceid=188]
   268:20170725:145409.017 End of check_discovery_condition():SUCCEED
   268:20170725:145409.017 End of check_action_condition():SUCCEED
   268:20170725:145409.017 In check_action_condition() actionid:8 conditionid:13 cond.value:'2' cond.value2:''
   268:20170725:145409.017 In check_discovery_condition()
   268:20170725:145409.017 query [txnlev:1] [select h.druleid from dhosts h,dservices s where h.dhostid=s.dhostid and h.druleid=2 and s.dserviceid=188]
   268:20170725:145409.018 End of check_discovery_condition():SUCCEED
   268:20170725:145409.019 End of check_action_condition():SUCCEED
   268:20170725:145409.019 In check_action_condition() actionid:8 conditionid:12 cond.value:'3' cond.value2:''
   268:20170725:145409.019 In check_discovery_condition()
   268:20170725:145409.019 query [txnlev:1] [select dcheckid from dservices where dcheckid=3 and dserviceid=188]
   268:20170725:145409.020 End of check_discovery_condition():SUCCEED
   268:20170725:145409.020 End of check_action_condition():SUCCEED
   268:20170725:145409.020 End of check_action_conditions():SUCCEED
   268:20170725:145409.020 In execute_operations() actionid:8
   268:20170725:145409.020 query [txnlev:1] [select o.operationtype,g.groupid,t.templateid,oi.inventory_mode from operations o left join opgroup g on g.operationid=o.operationid left join optemplate t on t.operationid=o.operationid left join opinventory oi on oi.operationid=o.operationid where o.actionid=8]
   268:20170725:145409.021 End of execute_operations()
   268:20170725:145409.021 In DCget_nextid() table:'escalations' num:1
   268:20170725:145409.021 End of DCget_nextid() table:'escalations' [18985:18985]
   268:20170725:145409.021 query [txnlev:1] [insert into escalations (escalationid,actionid,status,triggerid,itemid,eventid,r_eventid) values (18985,8,0,null,null,488331,null);
]
   268:20170725:145409.022 End of process_actions()
   268:20170725:145409.022 End of process_events()
   268:20170725:145409.022 End of discovery_update_service_status()
   268:20170725:145409.022 End of discovery_update_service()
   268:20170725:145409.022 query [txnlev:1] [commit;]
   268:20170725:145409.024 End of process_check()
   268:20170725:145409.024 query [txnlev:0] [select dcheckid,type,key_,snmp_community,snmpv3_securityname,snmpv3_securitylevel,snmpv3_authpassphrase,snmpv3_privpassphrase,snmpv3_authprotocol,snmpv3_privprotocol,ports,snmpv3_contextname from dchecks where druleid=2 and dcheckid<>3 order by dcheckid]
   268:20170725:145409.026 query [txnlev:1] [begin;]
   268:20170725:145409.027 In DBlock_record()
   268:20170725:145409.027 query [txnlev:1] [select null from drules where druleid=2 for update]
   268:20170725:145409.027 End of DBlock_record():SUCCEED
   268:20170725:145409.027 In discovery_update_host()
   268:20170725:145409.027 In process_events() events_num:1
   268:20170725:145409.027 In correlate_events_by_default_rules()
   268:20170725:145409.027 End of correlate_events_by_default_rules()
   268:20170725:145409.027 In DCget_nextid() table:'events' num:1
   268:20170725:145409.027 End of DCget_nextid() table:'events' [488332:488332]
   268:20170725:145409.027 query [txnlev:1] [insert into events (eventid,source,object,objectid,clock,ns,value) values (488332,1,1,5,1501005249,0,0);
]
   268:20170725:145409.028 In process_actions() events_num:1
   268:20170725:145409.028 In zbx_dc_get_actions_eval()
   268:20170725:145409.029 End of zbx_dc_get_actions_eval() actions:2
   268:20170725:145409.029 In check_action_conditions() actionid:8
   268:20170725:145409.029 In check_action_condition() actionid:8 conditionid:26 cond.value:'RT-SCM' cond.value2:''
   268:20170725:145409.029 In check_discovery_condition()
   268:20170725:145409.029 End of check_discovery_condition():FAIL
   268:20170725:145409.029 End of check_action_condition():FAIL
   268:20170725:145409.029 In check_action_condition() actionid:8 conditionid:28 cond.value:'pop' cond.value2:''
   268:20170725:145409.029 In check_discovery_condition()
   268:20170725:145409.029 End of check_discovery_condition():FAIL
   268:20170725:145409.029 End of check_action_condition():FAIL
   268:20170725:145409.029 In check_action_condition() actionid:8 conditionid:29 cond.value:'POP' cond.value2:''
   268:20170725:145409.029 In check_discovery_condition()
   268:20170725:145409.029 End of check_discovery_condition():FAIL
   268:20170725:145409.029 End of check_action_condition():FAIL
   268:20170725:145409.029 In check_action_condition() actionid:8 conditionid:27 cond.value:'rt-scm' cond.value2:''
   268:20170725:145409.029 In check_discovery_condition()
   268:20170725:145409.029 End of check_discovery_condition():FAIL
   268:20170725:145409.029 End of check_action_condition():FAIL
   268:20170725:145409.029 In check_action_condition() actionid:8 conditionid:13 cond.value:'2' cond.value2:''
   268:20170725:145409.029 In check_discovery_condition()
   268:20170725:145409.029 query [txnlev:1] [select druleid from dhosts where druleid=2 and dhostid=5]
   268:20170725:145409.029 End of check_discovery_condition():SUCCEED
   268:20170725:145409.029 End of check_action_condition():SUCCEED
   268:20170725:145409.029 End of check_action_conditions():FAIL
   268:20170725:145409.030 End of process_actions()
   268:20170725:145409.030 End of process_events()
   268:20170725:145409.030 End of discovery_update_host()

Looking the logs, to me looks like he's receiving empty value to compare with the strings, am I doing something worng?