Holes in graphs

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WGPavell
Posts: 4
Joined: Fri Dec 20, 2019 3:00 am

Holes in graphs

Post by WGPavell »

Sometimes graphs in cacti looks like this:
Снимок экрана от 2019-12-20 11-01-40.png
Снимок экрана от 2019-12-20 11-01-40.png (53.62 KiB) Viewed 1392 times
I think that is because cacti/rrd/something else can't handle big values but I can mistake.
In rrd file values looks like this:
Снимок экрана от 2019-12-20 11-01-49.png
Снимок экрана от 2019-12-20 11-01-49.png (26.14 KiB) Viewed 1392 times
So, how to fix this?
cigamit
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Re: Holes in graphs

Post by cigamit »

Change the logging to MEDIUM and look at the actual results coming back from the query.
tertius
Cacti User
Posts: 82
Joined: Wed Mar 01, 2017 2:34 pm

Re: Holes in graphs

Post by tertius »

the not-NaN values are near to 2^31 (maximum signed 32-bit integer), and no value is bigger than 2^31, so it seems you're using 32-bit counter for query. Use 64-bit snmp counters instead.
It also may be that you set an upper limit of 2^31 (2147483648) in the corresponding data sources, so that higher values are cut off.
WGPavell
Posts: 4
Joined: Fri Dec 20, 2019 3:00 am

Re: Holes in graphs

Post by WGPavell »

cigamit wrote: Sat Dec 21, 2019 12:34 pm Change the logging to MEDIUM and look at the actual results coming back from the query.
And how to see them? I trying to search it in clog but I have no records about this graph.
WGPavell
Posts: 4
Joined: Fri Dec 20, 2019 3:00 am

Re: Holes in graphs

Post by WGPavell »

tertius wrote: Sat Dec 21, 2019 12:56 pm the not-NaN values are near to 2^31 (maximum signed 32-bit integer), and no value is bigger than 2^31, so it seems you're using 32-bit counter for query. Use 64-bit snmp counters instead.
It also may be that you set an upper limit of 2^31 (2147483648) in the corresponding data sources, so that higher values are cut off.
I was create this graph with template "In/Out Bits (64-bit Counters)" so it cannot be 32-bit counter.
cigamit
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Re: Holes in graphs

Post by cigamit »

WGPavell wrote: Sun Dec 22, 2019 4:03 am
cigamit wrote: Sat Dec 21, 2019 12:34 pm Change the logging to MEDIUM and look at the actual results coming back from the query.
And how to see them? I trying to search it in clog but I have no records about this graph.
What Cacti version are you using?

Did you change the logging? if So, then all results should be in there. Depending on the Cacti version, you may have to search by data source ID.
WGPavell
Posts: 4
Joined: Fri Dec 20, 2019 3:00 am

Re: Holes in graphs

Post by WGPavell »

cigamit wrote: Sun Dec 22, 2019 9:36 pm What Cacti version are you using?
1.1.19
cigamit wrote: Sun Dec 22, 2019 9:36 pm Did you change the logging? if So, then all results should be in there. Depending on the Cacti version, you may have to search by data source ID.
I see some other DS but don't see DS for my graph.
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