Space in Graphs

[alinux]

Hi
I have a few devices out of around 30 hosts that are showing intermittent missing "white areas in the graphs", I have two cactis one old version 0.8.7E and a newer one I am migrating to which is version 0.8.7H. The problem does not happen on the old version it only appears on the new one.
At first I thought it might an SNMP timeout "all hosts are on the same network" so I did tweak the SNMP settings, however with debug ALL set in settings there are no timeouts appearing in the log. I am not sure what might be the problem here.
Some of the devices are cisco devices others are centos servers. CPU/Memory/Network/etc all is underutilized on both the Cacti host and the Hosts.
Please advice.

[ahmedgamil]

Dear

do u find the solution of this problem or not

i have the same problem ind cant find the solution

[amorastaff]

I was running into this, your OID queries are timing out and the rra is being skipped from being updated. Change your snmp timeout value for that device to seconds(default i think is 300ms), change it to 5000ms(5 seconds or higher if your sill getting gaps)

tail -f yourcactipath/cacti.log

mine was in: tail -f /var/log/cacti/cacti.log

You'll probably see and error in there along the lines of this:

06/09/2012 06:02:03 PM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'7x.1xx.1xx.1xx', and OID:'.1.3.6.1.2.1.1.3.0'