create a new Tab which can list the graphs having Nan

[gj00354347]

Feature Request

Hi Team ,

we are using cacti 1.2.18 in our prod Env which is used for monitoring around 5K devices along with their 500K graphs . Many times the Client complains about non-working graphs , I mean the graphs which are showing nan , due to several reasons like interface exist no more , or snmp timeout issues or the values are beyond the specified limit .

so can we have such feature like a Tab called , "NAN Graphs" and in that Tab we can have a device filter and a date or duration Filter .and using that Tab we can come to know about the Graphs having Nan .

or can we have some efficient script which takes less I/O , less ram , and return the list of non-working graphs having nan , which we can run weekly or monthly and find the list of graphs having nan.

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[xmacan]

Please have a look at #4943

[anarkia1976]

Please have a look at #4943

hi @xmacan,
Good, but how we can find graphs with NAN values?
could you direct on how to identify by red check?
thanks a lot.

[gj00354347]

@xmacan Hey many thanks ); for pointing me to this .

just a few questions , As I am on 1.2.18 and do not know the GUI of 1.2.23 where this feature is available .
so my question is in the ticket , I see stale rrd checks , there I see 3 columns Date , DS and Message , so does the message field contain the Graph name that's in Cacti GUI or is there any other column ??

because Knowing DS is good but we need to map those DSes with Graph Name , so is that available ?? and can we put some kind of alerting in this through Thold so that we can generate ticket on this and can start working on this rather than manually checking the page every 2 or 3 weeks.

[netniV]

If you look at the 1.2.x code, take a look at the clog_regex_xxx functions, these convert various IDs to names.

If you look at the 1.3.x code, this has been moved from clog to text_regex_xxx to make them more generally available.

[gj00354347]

@netniV Hi Vinten ,

thanks . so is that clog_regex_xx feature available in GUI as well or I will have to make use of it through back end CLI ??
if this is available in GUI of cacti , it will make our life much easier .

[xmacan]

@xmacan Hey many thanks ); for pointing me to this .

just a few questions , As I am on 1.2.18 and do not know the GUI of 1.2.23 where this feature is available . so my question is in the ticket , I see stale rrd checks , there I see 3 columns Date , DS and Message , so does the message field contain the Graph name that's in Cacti GUI or is there any other column ??

because Knowing DS is good but we need to map those DSes with Graph Name , so is that available ?? and can we put some kind of alerting in this through Thold so that we can generate ticket on this and can start working on this rather than manually checking the page every 2 or 3 weeks.

I will look at it. I think that add graph names is small change

[gj00354347]

Many Thanks @xmacan , eagerly awaiting this feature in cacti 1.2.25 );

[netniV]

The regex code is already present in the code, but may not be utilised in the location you want. With 1.3.x, the code was moved and made to work with and without providing links to the HTML pages to manage them, so any changes in 1.2.x will require porting manually to 1.3.x

[TheWitness]

We have to be careful with Regex due to a recent CVE. We've put some mitigation in place. Hopefully it's good enough.

[TheWitness]

How many NaN's means NaN? Anyway, I think it's almost there already from my perspective.

[xmacan]

@gj00354347 , @anarkia1976 - something like this?

[anarkia1976]

@gj00354347 , @anarkia1976 - something like this?

good very good, pefect.

[netniV]

Just remember, if this is a new feature, it's a 1.3.x implementation. :)

[xmacan]

damn, I have prepared it for 1.2.x in last few minutes

[gj00354347]

@gj00354347 , @anarkia1976 - something like this?

Yes very much like this , where we have filter like time span like nan for 2 hours or nan for 2 days or nan for 2 months .

[xmacan]

I think about email notification. RRDchecker is started periodically. I would like to send email when periodical check found any issue.

[gj00354347]

I think about email notification. RRDchecker is started periodically. I would like to send email when periodical check found any issue.

Yes very much ok approach , like run that check every week or every 2 weeks . But one thing we can improve here like in addition to sending emails , can we send log like thold module which sends the breach log to /var/log/err and a ticket is generated in ticketing tool . Here we can set a filter like if x, y or x device is having problem then send the msg to err log or if the No of graphs having nan is more than 10 or 15 then send a consolidated log which lists the problematic interfaces or unpopulated interfaces in err log and then ticketing tool will come in picture.

[xmacan]

The result = I will prepare it for 1.3.x cccording to the notes and requirements in #5373