[ZBX-17068] SNMP : Timeout while connecting to <ipaddress> Created: 2019 Dec 11  Updated: 2020 Jun 08  Resolved: 2020 Jun 08

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Proxy (P), Server (S)
Affects Version/s: 4.4.3
Fix Version/s: None

Type: Problem report Priority: Trivial
Reporter: CHAVIGNY Assignee: Edgars Melveris
Resolution: Incomplete Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

CentOS 7.6 - SNMPv3 (SHA and AES encryption) - Dell iDrac

Attachments: PNG File snmp.png     Text File zbx_log.txt    

 Description   

Steps to reproduce:

  1. Add host with SNMPv3 to monitor Dell iDrac through Zabbix proxy.
  2. Set "Refresh unsupported items" to 60s.
  3. After a variable period, SNMP is unvailable and display "Timeout while connecting to <ipaddress>"
  4. Clone this host, change only name (in my case, add -clone), all other value keep the same.
  5. The clone work perfectly, but after a variable period, the problem appear again.
  6. Disable and re-enable host fix issue, but after a period, the problem appear again also.
  7. Increase debug level. Host with timeout never appear in log. Clone host without problem appear (log output in the Result section below) :

Result:

{{ }}1479:20191211:142644.274 End of substitute_key_macros():SUCCEED data:'discovery{#MEMORYID},1.3.6.1.4.1.674.10892.5.4.1100.50.1.8.1,{#MEMORYMANUFACTURER},1.3.6.1.4.1.674.10892.5.4.1100.50.1.21.1,{#MEMORYCAPACITY},1.3.6.1.4.1.674.10892.5.4.1100.50.1.14.1,{#MEMORYPN},1.3.6.1.4.1.674.10892.5.4.1100.50.1.22.1,{#MEMORYSERIAL},1.3.6.1.4.1.674.10892.5.4.1100.50.1.23.1,{#MEMORYSPEED},1.3.6.1.4.1.674.10892.5.4.1100.50.1.15.1'
1479:20191211:142644.274 In get_values_snmp() host:'HIDDEN-ob-ing-poc-caas-esx02-clone' addr:'172.31.17.4' num:1
1479:20191211:142644.274 In zbx_snmp_open_session()
1479:20191211:142644.299 SNMPv3 [[email protected]:161]
1479:20191211:142644.299 End of zbx_snmp_open_session()
1479:20191211:142644.299 In zbx_snmp_process_discovery()
1479:20191211:142644.299 In zbx_snmp_translate() OID:'1.3.6.1.4.1.674.10892.5.4.1100.50.1.8.1'
--
1470:20191211:142714.159 End of substitute_key_macros():SUCCEED data:'1.3.6.1.4.1.674.10892.5.4.200.10.1.12.1'
1470:20191211:142714.160 In get_values_snmp() host:'HIDDEN-ob-ing-poc-caas-esx02-clone' addr:'172.31.17.4' num:16
1470:20191211:142714.160 In zbx_snmp_open_session()
1470:20191211:142714.184 SNMPv3 [[email protected]:161]
1470:20191211:142714.185 End of zbx_snmp_open_session()
1470:20191211:142714.185 In zbx_snmp_process_standard()
1470:20191211:142714.185 In zbx_snmp_translate() OID:'1.3.6.1.4.1.674.10892.5.4.700.12.1.11.1.4'
--
1469:20191211:142734.297 End of substitute_key_macros():SUCCEED data:'discovery{#MEMORYID},1.3.6.1.4.1.674.10892.5.4.1100.50.1.8.1,{#MEMORYMANUFACTURER},1.3.6.1.4.1.674.10892.5.4.1100.50.1.21.1,{#MEMORYCAPACITY},1.3.6.1.4.1.674.10892.5.4.1100.50.1.14.1,{#MEMORYPN},1.3.6.1.4.1.674.10892.5.4.1100.50.1.22.1,{#MEMORYSERIAL},1.3.6.1.4.1.674.10892.5.4.1100.50.1.23.1,{#MEMORYSPEED},1.3.6.1.4.1.674.10892.5.4.1100.50.1.15.1'
1469:20191211:142734.297 In get_values_snmp() host:'HIDDEN-ob-ing-poc-caas-esx02-clone' addr:'172.31.17.4' num:1
1469:20191211:142734.297 In zbx_snmp_open_session()
1469:20191211:142734.322 SNMPv3 [[email protected]:161]
1469:20191211:142734.322 End of zbx_snmp_open_session()
1469:20191211:142734.322 In zbx_snmp_process_discovery()
1469:20191211:142734.322 In zbx_snmp_translate() OID:'1.3.6.1.4.1.674.10892.5.4.1100.50.1.8.1'}}{{

Expected:
When SNMP became available again, this error message disappear.

 Comments   
Comment by Edgars Melveris [ 2019 Dec 12 ]

Hello, please check the following bug report: ZBX-2152

Is this the same situation?

Comment by CHAVIGNY [ 2019 Dec 13 ]

Hi,

Thank you for your reply.

I have no authentication / engineid problem.

After parse old log, when problem begin, I found that for host problem :

zbx_log.txt

The last line set host in unavailable and not enable again.

Comment by CHAVIGNY [ 2019 Dec 17 ]

Exactly same problem of ZBX-9123

Comment by Edgars Melveris [ 2019 Dec 19 ]

There is a very deep and technical explanation about many possible issues in ZBX-8385, is this one of the cases and do you still consider this to be a bug in Zabbix?

Comment by CHAVIGNY [ 2020 Jan 02 ]

I don't know. If is a bug in Zabbix, I report this issue. Otherwise, do you known a possible workaround ?

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