Hi, Hoping somebody might be able to assist me with this.
I can manually update the cache timeout for a table uusing a snmp get request as in: snmpset -v 2c -c private 10.128.19.86 nsCacheTimeout.1.3.6.1.4.1.1900.1.1.2 i 0 This sets the cache time out value for the oid listed above. However, what I really want to do is that my hsared object can update this value if configured to do so, i.e. do it programmatically. I see my change working as follows: My shared object registers a new configuration token which allows a user to specify a time out value. If this token is set then I want my shared object to read the new value and update the cache time out for that table to be the new value. I can get the existing cache object by calling netsnmp_cache_find_by_oid. I presume I would need to remove the existing cache handler and create and inject a new cache handler. However, to create and/or inject handlers I need the netsnmp_handler_registration object associated with my table. I can't see any way of retrieving this using the API. It is created in my interface code and I assume stored in the netsnmp subtree somewhere. Can somebody please tell me if what I'm trying to do is possible? If so, what is the correct way of doing it. I've looked at the existing net-snmp source, both core agent code and mib code, but can't see any examples of how this might be achieved. If its not possible, then I'd also like to know, as then at least I can stop trying to figure out how I can do it. Many thanks, Tim -----Original Message----- From: Tim Culhane [mailto:tim.j.culh...@gmail.com] Sent: 07 April 2015 09:54 To: 'Net-SNMP Coders' Subject: FW: making the cache timeout for container_load to be configurable Hi there, Anybody have ideas on how I can achieve the below? I'd really like for cache times for tables in snmp shared objects to be configurable rather than been hard coded when the shared object is originally initialised. Is there some way of changing the default cache time after the shared object is loaded? Thanks, Tim -----Original Message----- From: Tim Culhane [mailto:tim.j.culh...@gmail.com] Sent: 01 April 2015 15:52 To: 'Net-SNMP Coders' Subject: making the cache timeout for container_load to be configurable Hi, I'd like to be able to configure the length of the cache timeout for container_load by way of a token in the snmpd.conf file. However, this doesn't seem possible at the moment, because by the time we parse the snmpd.conf file the cache time has been set up in _xxx_container_init() in the _xxx_interface.c file Note that 'xxx' represents the tablename in question. Note that I'm using code generated from mib2c. I can't even do something like remove the existing cache handler in my config load handler and add a new one since a lot of the variables are local to my interface source file. Does anybody know if it is possible to configure a cache for the container_load via the snmpd.conf file? Thanks, Tim ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
