Re: Reconnect subagent automatically

On Mon, Oct 22, 2018 at 1:01 AM Rajaa, Mukuntha (Nokia - IN/Bangalore) <
[email protected]> wrote:

> Hi,
>
>
> I am using subagent mainly for "traps". So I am not using "agent_check_and_process".
> From what I understand, "agent_check_and_process" polls on to the
> connection between snmpd and subagent for any incoming request. My subagent
> is not serving any request at all. So I have skipped this function check at
> all.
>

The master agent will disconnect you regularly, then, if you're not
responding to pings, because it will think that you've gone unresponsive.

So whenever master-agent (snmpd ) gets restarted, subagent isnt
> re-establishing the connection. My code snippet is something like this,
>
>
>     while ( whatever )
>
>     {
>
>         wait_for_events_to_arrive_in_pipe(); // blocks on read-system call
>
>     }
>
>
> Currently I am hooking up netsnmp init script ( yes I am working on legacy
> system. No systemd ) to restart my subagent too. I am not too happy with
> this method. Is there an advisable way in doing so.
>

If you need to block until something happens, then I recommend establishing
the connection, sending the trap, and closing the connection again, like
the agentxtrap command does.

  Bill

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