On Tue, 2005-06-21 at 02:01, Steve S. Law wrote:
> In my init_applTable(), after
> netsnmp_register_table_iterator, I did:
>
> snmp_register_callback(SNMP_CALLBACK_LIBRARY,
> SNMP_CALLBACK_STORE_DATA,
> persist_data,
> NULL);
> persist_data is my callback function. Is that the
> right place to register?
Yes.
> In persist_data function, I just went through my
> table and caled read_config_store_data() for each
> column and then snmpd_store_config() to save the
> record.
>
> I was expecting that when I killed my sub-agent
> process, the callback will be invoked as part of
> snmp_shutdown("my-agent"?
It should be, yes.
How did you kill the agent?
If you put debugging output into the 'persist_data'
routine, does this get displayed or not?
> My MIB table has
> 26 columns which I want save. Do I need to put all
> those columns in some configuration file first before
> running my sub-agent?
No.
That's what the 'persist_data' routine is for.
> I looked at my-agent.conf file and noted that if I
> don't register callback function, then my-agent.conf
> will have some entries such as
> engineBoots 193
> oldEngineID 0x80001f88800024857c0b6d2f42
This is in /var/net-snmp/my-agent.conf - yes?
> But if register the persist_data callback, those
> entries were gone.
Hmmm... That sounds a bit worrying.
Dave
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