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| grey gaps in graphs http://www.steveshipway.org/forum/viewtopic.php?f=2&t=3035 |
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| Author: | geebzor [ Fri May 29, 2009 2:54 pm ] |
| Post subject: | grey gaps in graphs |
Hi all, Has anyone seen anything like this before ? To be honest, I don't think this is an issue with routers.cgi, but perhaps rrdtool ? Same server, same interface, one using rrdtool, the other just the standard log file format. Here is the rrdtool format one; And here is the normal logfile format one. Any ideas ? Cheers 
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| Author: | geebzor [ Mon Jun 01, 2009 12:57 pm ] |
| Post subject: | Re: grey gaps in graphs |
Let's see if I can get it above these spammers !! Anyone have any ideas what could be causing this issue ? |
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| Author: | stevesh [ Thu Jun 04, 2009 12:02 am ] |
| Post subject: | Re: grey gaps in graphs |
Spammers killed off (for now) The grey bars are when there are 'unknown's in the RRD file, which Routers2 displays as grey bars but native MRTG displays by repeating the previous value. Set the extended option 'unknasprev' for routers2 to behave like native MRTG, but this is a bit misleading (which is why Routers2 displays the unknowns as unknown) The unknowns are because your polling is failing, possibly because the device is overloaded and not responding in time? Add extended SNMP options to increase the polling timeout and retries and you may find the grey bits are replaced by real data; otherwise use unknasprev to get them filled in with a guess (but you wont see grey when the device is REALLY down) |
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| Author: | geebzor [ Thu Jun 04, 2009 12:16 pm ] |
| Post subject: | Re: grey gaps in graphs |
Hi Steve, Thanks for responding. One thing I didn't mention is that the CPU graphs are clean, no breaks at all. If it was a timeout issue, wouldn't it affect those aswell ? Or is it because the CPU is probed 1st perhaps (it is at the top of the config file) ? |
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| Author: | stevesh [ Thu Jun 04, 2009 1:59 pm ] |
| Post subject: | Re: grey gaps in graphs |
This is possible. Another possibility is just that the different OIDs respond at different speeds depending on the agent. Or, after responding to one, it 'sleeps' for a bit and the second times out. Try increasing timeouts? |
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| Author: | geebzor [ Thu Jun 04, 2009 2:09 pm ] |
| Post subject: | Re: grey gaps in graphs |
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