Re: [opennms-discuss] Making changes to RRD collection values in datacollection-config.xml

[Ronald R. <ro...@el...>]

> On Jul 31, 2015, at 4:56 PM, Simon Sorensen <sim...@pa...> wrote:
> 
> I want to change the default snmp collection to keep 5 minute samples for a full year rather than 7 days.
> 
> I think I want to change this line in datacollection-config.xml:
> 
> <rra>RRA:AVERAGE:0.5:1:2016</rra>
> 
> to this:
> 
> <rra>RRA:AVERAGE:0.5:1:105408</rra>
> 
> Is this correct?  From what I've read online, this should maintain 5 minute samples for a period of 366 days.
> 
> Do I need to make any other changes to reflect these changes in mib2-graph.properties?  Do I need to keep the RRA entries for monthly and yearly data if I make this change?

After making those changes, you would need to remove all existing snmp RRDs as they contain invalid archives. With a little java code, you could probably migrate existing data JRBs and use that to create the single archive ones.

As your keeping the minute source data points around for the whole year, I think your right on that you could get rid of the monthly & yearly archives.

Ron