On 7/20/10 6:28 AM, Debbie Fligor wrote:
On Jul 20, 2010, at 4:26, yhyun wrote:
Can someone tell me how does intemapper poll ? Is there a central database? It
looks like if I change the SNMP community in one node in one map, this does not
get automatically updated in the same node that exists in a different map.
Also, it does not update on the map that is running in another PC. Is this
correct? because I updated in a node of a map the SNMP community but I still
get authentication failures.
each device on each map stores it's own SNMP community info.
This is correct. Each device on a map is a separate entity -- if you
change a parameter for one device, your change applies to that device
only. You can think of each map file as a self-contained "document" of
devices to probe.
When you have two or more devices on one InterMapper server with the
same probe type, poll parameters, and probe parameters, InterMapper will
automatically combine the workload of polling this device, so it is only
polled once by the server (even if the identical devices are in
different maps). As soon as you change one parameter of one device so
the two devices are no longer identical, InterMapper initiates separate
polling of the two devices.
You can use intermapper database, but I don't know if that lets you do mass
updates (we're just getting started with it here, and it's been running for a
couple of months but isn't done importing all our old data so we haven't done
much with it yet).
The InterMapper database provides a SQL backend to be used for
reporting. It currently only imports changes from the InterMapper
servers in a read-only fashion, but a future use case will be to
broadcast device changes between different maps on different servers
transparently.
In the Change probe dialog box there's a button to just set what you're
changing to the default community, but I've never gotten that to work. I'm
always too busy when we're doing mass password and community changes to track
down if it's user error on my part or an actual bug though, so it may work fine
for you.
The Default button in the Probe Type.. dialog is currently only changing
the parameters back to their defaults, but it doesn't affect the SNMP
credentials. Unfortunately, the Default button still appeared when a
probe had no parameters, so in that case it was doing nothing. This
issue has been fixed for 5.3.3. The default button will now revert the
SNMP credentials of a probe back to their default state. If a probe does
not have any parameters or SNMP credentials displayed, the Default
button will be disabled.
--
Bill Fisher
Dartware, LLC
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