RRA tune feature.

pestilence · Post by **pestilence** » Wed Oct 22, 2003 3:00 am

The tune function for the maximum and minimum value should be brought back to cacti, it will save some time from working both in cacti and at the console changing this rra's to the proper values.
Also there is a script which removes the spikes, it would be nice if we could implement this into cacti as well, maybe from an edit menu you could be able to select the remove spike feature.

Elmar · Post by **Elmar** » Thu Oct 23, 2003 1:13 am

The rrdtool tune function is exactly what i'm missing in Cacti at the moment.
Maybe some more things to verify the data source settings. The debug feature is only showing how the RRD file would be created and not how it really looks and the inside.

Elmar

oharel · Post by **oharel** » Thu Aug 12, 2004 7:00 pm

Yes, definitely - a "remove spike" feature is what's needed, per data-source, probably?

-harel

BSOD2600 · Post by **BSOD2600** » Sat Apr 09, 2005 3:51 pm

bump.

Yea, having cacti automatically run rrdtool tune when the min/max/heartbeat is changed for a datasource would be really handy.

Post by **TheWitness** » Sat Apr 09, 2005 9:31 pm

Ian wanted to incorporate into 0.8.6, but I threw him off track with other features and we just didn't get it done. I think the function is already written, just not incorporated. The tuning would take place during a subsequent poll cycle. No promises at this point.

TheWitness

Atle · Post by **Atle** » Thu Apr 21, 2005 5:29 pm

I have resorted to using DERIVE rather than COUNTER for most of our graphs, works great. Especially for our MySQL servers, the graphs will spike and spoil the graphs upon restart when using the COUNTER ds. Not anymore, instead it will show a small gap.

I had this huge one line shell command to convert as many RRDs as I needed (via rrdtool tune) from COUNTER to DERIVE, but unfortunately it got lost in the history...

bulek · Post by **bulek** » Fri Apr 22, 2005 5:18 am

DERIVE is almost the same as COUNTER with tis exception that it allows for negative values (negative rates actually). If your device resets the first read is negative but it is dropped because by default you have Minimum Value set to 0. Then why not to stay with COUNTER and set proper Maximum Value? You would avoid spikes this way too. Another drawback of DERIVE is that you will have this "small gap" every time your counter wraps while CONUTER would handle this situation in a smart way.

- Piotr

Post by **rony** » Fri Apr 22, 2005 8:36 am

Post by **TheWitness** » Fri Apr 22, 2005 11:14 am

We all do in fact worship Bulek!

TheWitness

Atle · Post by **Atle** » Tue Apr 26, 2005 11:22 am

bulek wrote:DERIVE is almost the same as COUNTER with tis exception that it allows for negative values (negative rates actually). If your device resets the first read is negative but it is dropped because by default you have Minimum Value set to 0. Then why not to stay with COUNTER and set proper Maximum Value? You would avoid spikes this way too. Another drawback of DERIVE is that you will have this "small gap" every time your counter wraps while CONUTER would handle this situation in a smart way.

- Piotr

When I use DERIVE and the correct MIN/MAX settings I never have spikes. That was not the case for our MySQL graphs using a 32bit COUNTER, which upon every restart left me with unusable graphs (unless I manually removed the spikes). I'll take a small gap any time over spikes in my performance graphs.

Post by **TheWitness** » Tue Apr 26, 2005 1:50 pm

Stay tuned Cacti 0.8.6d will be released within the next day or so.

TheWitness

Lewis · Post by **Lewis** » Sat May 21, 2005 9:08 pm

TheWitness wrote:Stay tuned Cacti 0.8.6d will be released within the next day or so.

TheWitness

when will you release 0.8.6e ?

we have 45 wireless routers graphed,
with 4-6 interfaces each,
but we reboot them every night, sometimes twice a day...

so, i live in a spike-y world

its very difficult to remove spikes with this killspike script, from 200-250 files...

Post by **TheWitness** » Sat May 21, 2005 9:31 pm

Lewis,

Please follow this link. I believe that I am done. You tell me.

TheWitness

http://forums.cacti.net/viewtopic.php?t=7693

Lewis · Post by **Lewis** » Tue May 24, 2005 8:02 pm

TheWitness wrote:Lewis,

Please follow this link. I believe that I am done. You tell me.

TheWitness

http://forums.cacti.net/viewtopic.php?t=7693

well, i tried to build this..
i chmod +x configure script but when i run it, i get this error message:

Code: Select all

configure: error: Cannot find MySQL header files under /usr

Post by **rony** » Wed May 25, 2005 7:50 am

Hey guys, let's not have a support replys in a feature request thread.

Cacti

RRA tune feature.

RRA tune feature.

Remove Spike Feature

Spikes

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