Issues with traffic graphs bursts

[berny81]

Hi all,

i installed cacti 0.87g on debian squeeze 64 bits machine.

created traffic graphs (uplink/downlink) for remote sites as well as signal values.

Sometimes and dunno the reason my uplink/downlink graphs gets huge number (like 500 mb/s) knowing that the real values are around 2mb/s causing bad statistics and i have to wait 24 hours in order to be able to see again the graphs correctly since the y axis went too high during this burst/spike ...
does anyone know how to solve this issue (step by step explanation will be great since i am a cacti newbie)

here is my system info:
Cacti Version 0.8.7g
Cacti OS unix
SNMP Version NET-SNMP version: 5.4.3
RRDTool Version RRDTool 1.4.x
Hosts 5
Graphs 654
Data Sources Script/Command: 5
SNMP Query: 651
Total: 656
Poller Information
Interval 60
Type spine
Items Action[0]: 2980
Action[1]: 5
Total: 2985
Concurrent Processes 1
Max Threads 10
PHP Servers 1
Script Timeout 25
Max OID 10
Last Run Statistics Time:1.9260 Method:spine Processes:1 Threads:10 Hosts:6 HostsPerProcess:6 DataSources:2961 RRDsProcessed:642
PHP Information
PHP Version 5.3.3-7+squeeze15
PHP OS Linux
PHP uname Linux cacti 2.6.32-5-amd64 #1 SMP Fri May 10 08:43:19 UTC 2013 x86_64
PHP SNMP Installed
max_execution_time 30
memory_limit 128M

[berny81]

graph_image.php1.png (40.43 KiB) Viewed 979 times

Hi

Anyone has a clue why this is happening and how to fix it??
Please see below attached screenshot of what is happening.
It is screwing the display and i have to wait 24H to have a correct display again (if not another burst/spike occur during this time

Please advise.

[aftershocks]

I'm in the same boat... Did you manage to find a fix?

[paulgevers]

I'm in the same boat... Did you manage to find a fix?

If I am correct there is spike killer functionality somewhere nowadays (cacti > 1.x)