Re: AgentX reconnect time

Hi Mostafa,

which version of net-snmp are you using?
In 5.8 you can use the "-c" option which works, but I also found a bug in
it using the default paths

*# ./mysubagent -h   *
USAGE: ./mysubagent [OPTIONS]

OPTIONS:
  -c FILE[,...]         read FILE(s) as configuration file(s)
  -C                    do not read the default configuration files
....
*# cat agentx.conf *
[snmp] logTimestamp 1
agentXPingInterval 5
*# ./mysubagent -C -c agentx.conf -f -x /var/agentx/master *
2019-02-22 07:23:40 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):
2019-02-22 07:23:45 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):
2019-02-22 07:23:50 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):

The name of the agentx config file can be agentx.conf or agentx.local.conf
and it should be in one of this  directories
$HOME/.snmp
/usr/etc/snmp
/usr/lib/snmp
/usr/share/snmp
/var/lib/net-snmp
or you can use the SNMPCONFPATH

AND HERE comes the bug!! Using SNMPCONFPATH or the default path, you will
get "Warning: Unknown token: agentXPingInterval." and the timeout will be
set to the default value of 15.
I will file a bug on this!
*# SNMPCONFPATH=$PWD ./mysubagent -f -x /var/agentx/master*
2019-02-22 07:37:22 /root/snmp-test/agentx.conf: line 2: Warning: Unknown
token: agentXPingInterval.
2019-02-22 07:37:22 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):
2019-02-22 07:37:37 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):

*# cp agentx.conf $HOME/.snmp/*
*# ./mysubagent -f -x /var/agentx/master*
2019-02-22 07:41:39 /root/.snmp/agentx.conf: line 2: Warning: Unknown
token: agentXPingInterval.
2019-02-22 07:41:39 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):
2019-02-22 07:41:54 Warning: Failed to connect to the agentx master agent
(/var/agentx/master):

I will check 5.7.3  and be back with more information

Regards
Anders Wallin


On Thu, Feb 21, 2019 at 10:43 PM Mostafa Kassem <[email protected]>
wrote:

> Thank you for your reply, Anders.
>
>
>
> I created an agentx.conf file with this single line:
>
>
>
> agentxPingInterval 5
>
>
>
>
>
> I tried putting agentx.conf into one the following directories to no avail:
>
> /var/agentx/
>
> /var/snmp/
>
> Var/net-snmp/
>
>
>
> Where should the agentx.conf file go? I did a search on this topic and
> couldn’t find an answer.
>
>
>
> It is still 15 seconds of disconnection.
>
>
>
> Thanks again,
>
>
>
> Mostafa
>
>
>
> *From:* Anders Wallin <[email protected]>
> *Sent:* Thursday, February 21, 2019 2:57 AM
> *To:* Mostafa Kassem <[email protected]>
> *Cc:* [email protected]
> *Subject:* Re: AgentX reconnect time
>
>
>
> Hi Mostafa,
>
>
>
> you need to set it in the config file for your agentx(e.g agentx.conf),
> not in snmpd.conf
>
> Regards
>
> Anders Wallin
>
>
>
>
>
> On Thu, Feb 21, 2019 at 1:22 AM Mostafa Kassem <[email protected]>
> wrote:
>
> When we restart the snmpd, the agent detects that the snmpd is no longer
> running and disconnects, waits 15 seconds and then connects to the snmpd
> again.
>
>  AgentX master disconnected us, reconnecting in 15
>
>
>
> I would like to reduce this time to 5 seconds.
>
>
>
> Is this time specifieded in agentXPingInterval  as described here?
> http://www.net-snmp.org/docs/man/snmpd.conf.html
>
>
>
> However if I add agentXPingInterval 5 to the snmpd.conf file, I get this
> error:
>
> /var/snmp/snmpd.conf: line 35: Warning: Unknown token:agentXPingInterval.
>
>
>
> I found this code in agentx_config.c which leads me to believe that this
> value is hardcoded and not set in any configuration file. So changing it
> requires editing and recompile of the code.
>
>
>
> #ifdef USING_AGENTX_SUBAGENT_MODULE
>
>     /*
>
>      * tokens for master agent
>
>      */
>
>     if (SUB_AGENT == agent_role) {
>
>         /*
>
>          * set up callbacks to initiate master agent pings for this
> session
>
>          */
>
>         netsnmp_ds_register_config(ASN_INTEGER,
>
>
> netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
>
>                                    NETSNMP_DS_LIB_APPTYPE),
>
>                                    "agentxPingInterval",
>
>                                    NETSNMP_DS_APPLICATION_ID,
>
>                                    NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL);
>
>         /* ping and/or reconnect by default every 15 seconds */
>
>         netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
>
>                            NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL, 15);
>
>
>
>     }
>
> #endif /* USING_AGENTX_SUBAGENT_MODULE */
>
>
>
> Thanks,
>
>
>
> Mostafa
>
> _______________________________________________
> Net-snmp-users mailing list
> [email protected]
> Please see the following page to unsubscribe or change other options:
> https://lists.sourceforge.net/lists/listinfo/net-snmp-users
>
>

_______________________________________________
Net-snmp-users mailing list
[email protected]
Please see the following page to unsubscribe or change other options:
https://lists.sourceforge.net/lists/listinfo/net-snmp-users