Ntop rrd: illegal attempt to update using time

RouterOS General
1

Hi Guys
i use Ntop for monitoring all Routerboard traffic. and All routerboard send netflow to the ntop server. for the first minis was fine

but suddenly it will coming up

Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/1/ifInPkts.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/1/ifInPkts.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/1/ifOutOctets.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/1/ifOutOctets.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/1/ifOutPkts.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/1/ifOutPkts.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifInOctets.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifInOctets.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifInPkts.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifInPkts.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifOutOctets.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifOutOctets.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
Mon Aug 31 13:49:55 2009 WARNING RRD: rrd_update(/tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifOutPkts.rrd) error: /tmp/rrd/interfaces/Stonehurst/NetFlow/2/ifOutPkts.rrd: illegal attempt to update using time 1251683395 when last update time is 1251683395 (minimum one second step)
^CMon Aug 31 13:50:10 2009 CLEANUP[t3070724896]: ntop caught signal 2 [state=4]
Mon Aug 31 13:50:10 2009 THREADMGMT[t3070724896]: ntop RUNSTATE: SHUTDOWN(7)
Mon Aug 31 13:50:10 2009 CLEANUP[t3070724896] catching thread is unknown
Mon Aug 31 13:50:10 2009 CLEANUP: Running threads SFP SIH WEB NPS(eth0) NF1
Mon Aug 31 13:50:10 2009 STATS: 917,416 packets received by filter on eth0
Mon Aug 31 13:50:10 2009 STATS: 0 packets dropped (according to libpcap)
Mon Aug 31 13:50:10 2009 STATS: 0 packets dropped (by ntop)
Mon Aug 31 13:50:10 2009 Joining thread NPS(eth0) [t2978532240]

In the Ntop Log

I check the website they said it is because it has two host in same ip address. but i only add one drive (is public ip address) in the netflow plus local server one was two but no one use those ip address. and no Vlan in the network

Is some one could tell me how to fix it ?>

Thank you

Harry

2

could you please check it by enabling NetFlow on RBs one-by-one?

the object for checking: see whether the error appears on RBs which are sending >30 flows per second and RBs with <30 finished flows per second

3

I del all the drive on Ntop and only add two i found the first drive in router os Traffic flow status is fine Active flow >30 and finished flow >30 as well

But the second one seem like doesn’t health Active flow only 6 finished flow <30 so seem like the they crash the second one couldn’t send data in to the Ntop

is it because some where i need change on Routerboard or Ntop

Thank you

Harry

4

well, I meant “per second”…

anyway, if router with < 30 finished flows gives an error - then… I don’t know…