Cacti

We are currently using SPINE 0.8.7g with CACTI Version 0.8.7g.

Do you suggest moving to SPINE 0.8.8 and trying again? Will this SPINE version be backwards compatible?

Hi Gandolf; Thanks for the response. We are aware of the concerns regarding large rrd's, but we're also very aware of the repercussions. As a side note, here's why we are creating these large RRD's and what we intend to use it for: 1) create template package (data input method, data source, single g...

Thanks for your reply. We are always interested in ways to speed up SQL operations, and this was a big question mark for us.

Regards!

Hi, I've got a script that returns 496 elements in the format of (unique_name:value ... ... ) for population into a data source with 496 data source items. My results are that from time to time the poller does not seem to function correctly, and the rrd file sits un-updated with a stale timestamp. 0...

I have found two CDEFs that work, depending on the result. 1) Draw NaN same as previous known good CACTI: CDEF=UN,PREV,CURRENT_DATA_SOURCE,IF 2) Draw abnormally high value (>50000) as previous known good CACTI: CDEF=CURRENT_DATA_SOURCE,50000,GT,PREV,CURRENT_DATA_SOURCE,IF Documents that helped me un...

Here is a CDEF that was given to me over on the RRDtool forums. CDEF:cleanx=x,UN,PREV,x,IF It's purpose is to replace unknown values (NaN) with the previous value, exactly what we need to fill in gaps. I expect to replace the "UN" with a range in order to not have to put limitations on my ...

Thank you again for your assistance. Philosophical indeed, but with some practical applications: Here's the scenario: I am polling a device that increments a counter, but resets the counter to 0 every hour. This is frustrating, because the rollover occurs on a timer, and not on a predictable counter...

I beleive the answer to my request may lie in CDEFs. I am working with the RRDtool documentation to determine if I can represent a spike above a certain limit as "last-known-good". http://linux.die.net/man/1/rrdtutorial Working with CDEFs is better than poisoning an RRD with a DS Limit tha...

Thank you for your quick response. Is it not true that if a DS limit is reached, the result is a "NaN", which will pollute the clean line drawn in a graph by creating a "gap" in the represented data? (example, graphing: 9933, 9948, 9999, NaN, 9893, etc). This is not desirable for...

Hi, I absolutely love CACTI. I run on various systems and collect many counters from a variety of ISP and telecom-style equipment. One of the problems we run into is when we data source from a counter that can roll around from time to time, but not on a normal 32-bit or 64-bit integer. This can occu...

Hi Everyone; I've got a mid-size cacti deployment (50 devices, 5000 data sources) on a Ubunut 9.10 Xeon dual-core, dual-processor @3GHz server w/ 4GB RAM and . Running cacti with Spine on a 5 minute poll cycle. We are seeing periodic system slowdowns and are trying to understand the SQL queries brea...