i have noticed that on one of my rb112 units interface graphs look strange
see your self

http://www.from.okay.pl/sioux/stats.htm

[xxx@4_sektor_2] > /tool graphing interface print
Flags: X - disabled
# INTERFACE ALLOW-ADDRESS STORE-ON-DISK
0 sektor_2 0.0.0.0/0 yes

[xxx@4_sektor_2] > /int print
Flags: X - disabled, D - dynamic, R - running
# NAME TYPE RX-RATE TX-RATE MTU
0 R ether1 ether 0 0 1500
1 X sektor_1 wlan 0 0 1500
2 R sektor_2 wlan 0 0 1500
3 R bridge1 bridge 0 0 1500

[xxx@4_sektor_2] > /int bridge port print
Flags: X - disabled, I - inactive, D - dynamic
# INTERFACE BRIDGE PRIORITY PATH-COST
0 ether1 bridge1 128 10
1 sektor_2 bridge1 128 10

this unit is running v2.9.30 .. rest of my units runs 2.9.28 and 2.9.29

what is cousing that graphs looks like that - only "Daily" Graph (5 Minute Average) ?

what exactly is strange about it?

two blue lines at "Daily" Graph (5 Minute Average)

on every other unit there is only one

oh ...

sooo. this is not a BUG right ?

I would say that it is an issue with your cacti config.

it's not cacti.

so, looks like the clock got turned back at some point, and there was another graph at the same time. what does it look like now?

it's not cacti.

So it isn't....oops

now every thing is ok. after next reboot it starts drawing normaly.