Discussion:
net-snmp 5.4.1 on Solaris 11: snmpd becomes non-responsive
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Touchstone Shannon
2016-04-22 22:23:17 UTC
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After enabling the net-snmp service, snmpd will run for a short period and then become non-responsive. snmpwalk times out. The following message repeats over and over in the log:

verbose:access:tcpconn:entry: create

Any ideas?

Best regards,

Shannon
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Touchstone Shannon
2016-04-25 15:20:40 UTC
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It appears that there is an issue if the number of TCP connections is greater than 1000 as is the case on our server.

# netstat -an | grep ESTABLISHED | wc -l
1907

As suggested by Oracle, I appended the following options for snmpd to disable the TCP MIB at runtime and avoid querying the tcpConnTable:

snmpd -I -tcp

But, when running 'snmpwalk,' it appears that the TCP MIB is still enabled:


. . .

TCP-MIB::tcpConnRemPort.192.168.18.6.64494.192.168.18.6.7103 = INTEGER: 7103
TCP-MIB::tcpConnRemPort.192.168.18.6.64820.192.168.18.9.7107 = INTEGER: 7107
TCP-MIB::tcpConnRemPort.192.168.18.6.64952.192.168.18.6.7103 = INTEGER: 7103
Timeout: No Response from localhost
. . .


The Oracle Doc ID is 1357800.1

Any suggestions?

Best regards,

Shannon


From: Touchstone Shannon [mailto:***@gemalto.com]
Sent: Friday, April 22, 2016 5:23 PM
To: net-snmp-***@lists.sourceforge.net
Subject: net-snmp 5.4.1 on Solaris 11: snmpd becomes non-responsive

After enabling the net-snmp service, snmpd will run for a short period and then become non-responsive. snmpwalk times out. The following message repeats over and over in the log:

verbose:access:tcpconn:entry: create

Any ideas?

Best regards,

Shannon
________________________________
This message and any attachments are intended solely for the addressees and may contain confidential information. Any unauthorized use or disclosure, either whole or partial, is prohibited.
E-mails are susceptible to alteration. Our company shall not be liable for the message if altered, changed or falsified. If you are not the intended recipient of this message, please delete it and notify the sender.
Although all reasonable efforts have been made to keep this transmission free from viruses, the sender will not be liable for damages caused by a transmitted virus.
________________________________
This message and any attachments are intended solely for the addressees and may contain confidential information. Any unauthorized use or disclosure, either whole or partial, is prohibited.
E-mails are susceptible to alteration. Our company shall not be liable for the message if altered, changed or falsified. If you are not the intended recipient of this message, please delete it and notify the sender.
Although all reasonable efforts have been made to keep this transmission free from viruses, the sender will not be liable for damages caused by a transmitted virus.
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