Fwd: journalctl error | tcpConnectionTable insert (-1)

I am wondering if there is a solution to my problem described below. Currently I've had to completely disable snmpd on a production server and use a different form of monitoring. 


From: "Ricky Cousins" <[email protected]> 
To: "Paul Herring" <[email protected]> 
Cc: "net-snmp-users" <[email protected]> 
Sent: Friday, February 25, 2022 3:10:11 PM 
Subject: Re: journalctl error | tcpConnectionTable insert (-1) 

I have reduced the logging level with -LS3d and am still seeing a flood of errors. This causes a flickering in our monitoring system causing it to think the system is down. 


From: "Paul Herring" <[email protected]> 
To: "Ricky Cousins" <[email protected]> 
Cc: "net-snmp-users" <[email protected]> 
Sent: Thursday, February 24, 2022 4:38:50 PM 
Subject: Re: journalctl error | tcpConnectionTable insert (-1) 

Are you logging debug messages? 

[ https://github.com/net-snmp/net-snmp/blob/7fe7a78eb113fa752c224b358b931b6ef8530e29/snmplib/container.c#L347 | https://github.com/net-snmp/net-snmp/blob/7fe7a78eb113fa752c224b358b931b6ef8530e29/snmplib/container.c#L347 ] 

If so, on a production system you should probably reduce the amount of logging that's happening. 



On Thu, Feb 24, 2022 at 2:31 PM Ricky Cousins < [ mailto:[email protected] | [email protected] ] > wrote: 



Greetings, 

I currently have a situation where we have many TCP connections at once and seem to get many errors related to 'tcpConnectionTable'. It seems the connection table gets full and I would like to resolve this. If I am not mistaken, I cannot simply disable this specific piece of the MIB. 

Below is the error: 
$ journalctl --unit=snmpd.service -n 20
--- snip ---
(host.domain) snmpd[27055]: error on subcontainer 'tcpConnectionTable' insert (-1)
--- snip --- 

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-- 
PJH 



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