Weird problem with total traffic counts

Axoft - Yavuz · Post by **Axoft - Yavuz** » Fri Mar 20, 2009 6:02 am

The time-frame seems a bit off, however the countings of the totals are totally wrong again. See attachments.

Post by **TheWitness** » Fri Mar 20, 2009 6:35 am

browniebraun wrote:Till now I did not found any issue within the output of ReportIt, but the csv dump is totally unusable. (e.g. the start and end date represent the start point of unixtime. )
Please try following steps: Go to the yearly graph of that interface and zoom into that graph. Then edit the url and change manually the time frame. Setup parameters as follows:
graph_start=1228003200
graph_end=1230767999

Compare the results of that graph with the results of ReportIt.

Best regards
-Andreas-

Is this a Cacti bug. If so, please open a Mantis ticket...

phalek · Post by **phalek** » Fri Mar 20, 2009 7:36 am

I'm jsut curious, it is the CSV file supposed to have

Code: Select all

Start Date:	1970-01-01 01:00:00
End Date:	1970-01-01 01:00:00

? As I can confirm this with my 0.8.7d installation I'm opening a bug for that ...

Post by **rony** » Sat Mar 21, 2009 9:16 am

I have questions!

Before anyone puts in a bug, please wait for me to request it concerning this issue. At this point there is not enough information for a bug report that will get anything resolved.

Questions:

1. I need to see your rra definitions, as they stand now your system.
2. I need a rrdtool dump of the rrd file in question, the path is in the graph debug you posted.

Based on what I have observed from this post at this point, I have concerns about the granularity of the data in the selected time frame. Cacti uses the AVERAGE when fetching data from the RRDtool files. This isn't the best method, especially when you have data being retrieved from consolidated data sources, which appears to be the case here.

What you are seeing is a common side effect to this unfortunate method. I have plans to alleviate this situation in 0.8.8. This is no simple problem and it will not be tackled in the 0.8.7 code base. Just fixing this, without having a clear plan on conversion and having fail safes in the code will break 90% of the graph variable definition in the field. Mostly due to missing rra definitions in RRDtool files.

Please provide me with the information that I have requested above so that I can completely diagnose this issue.

Thanks!

Axoft - Yavuz · Post by **Axoft - Yavuz** » Mon Mar 23, 2009 3:10 am

RRA definitions:

Name: Hourly (1 Minute Average)
Consolidation Functions: AVERAGE, MAX
X-Files Factor: 0.5
Steps: 1
Rows: 500
Timespan: 14400

Name: Daily (5 Minute Average)
Consolidation Functions: AVERAGE, MAX
X-Files Factor: 0.5
Steps: 1
Rows: 600
Timespan: 86400

Name: Weekly (30 Minute Average)
Consolidation Functions: AVERAGE, MAX
X-Files Factor: 0.5
Steps: 6
Rows: 700
Timespan: 604800

Name: Monthly (2 Hour Average)
Consolidation Functions: AVERAGE, MAX
X-Files Factor: 0.5
Steps: 24
Rows: 775
Timespan: 2678400

Name: Yearly (1 Day Average)
Consolidation Functions: AVERAGE, MAX
X-Files Factor: 0.5
Steps: 288
Rows: 797
Timespan: 33053184

Name: Year, no average, 1 min PDPs
Consolidation Functions: AVERAGE
X-Files Factor: 0.5
Steps: 1
Rows: 527040
Timespan: 33053184

The last one (Year, no average, 1 min PDPs) is a new one which is supposed to be used instead of all the other ones, but is not in use at this moment.

Attached is the dump of the rrd file.

Axoft - Yavuz · Post by **Axoft - Yavuz** » Thu Mar 26, 2009 6:44 am

Is there any progress on this?

Post by **TheWitness** » Thu Mar 26, 2009 7:08 am

Can you please install my SpikeKill plugin and perform an analysis and send us a screen capture of that analysis.

TheWitness

Axoft - Yavuz · Post by **Axoft - Yavuz** » Thu Mar 26, 2009 7:21 am

Does this help? If not, can you please be more specific?

Axoft - Yavuz · Post by **Axoft - Yavuz** » Mon Mar 30, 2009 7:29 am

Is there any update?

Weird problem with total traffic counts

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