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List:       ntop
Subject:    Re: [Ntop] RRD pluging data store
From:       Luca Deri <deri () ntop ! org>
Date:       2008-06-13 7:08:18
Message-ID: 48521CE2.3050209 () ntop ! org
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André
see below

André Ribeiro wrote:
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> Hello again!
>
> After searched and read docs/FAQ, I guess that rrd plugin is the best
> way to archive history data about our network usage. But now I'm having
> some troubles with that.
>
> I had to run ntop, as root, because I always had an error on creating
> rrd directory... Solved now.
>   
You need to be the user who's able to create the rrds in the directory 
you specified. IF you create the rrds under (let's say) /var, you ought 
to be root

> The first time I was able to run the plugin, it created a lot of data
> (about 2Gb) within the 'hosts' dir, witch I disable for now and only
>   
This is because you said to ntop to save all of your hosts. Please 
configure this properly
> have interfaces enabled. But it seems to get other errors, on log:
>
> Thu Jun 12 18:12:33 2008  **ERROR** releaseMutex() called with an
> UN-INITIALIZED mutex [t2954058640 m0xb6e1d3e0 @rrdPlugin.c:2426]
> Thu Jun 12 18:12:33 2008  **ERROR** accessMutex() called 'rrd_last' with
> an UN-INITIALIZED mutex [t2954058640 m0xb6e1d3e0 @rrdPlugin.c:2050]
>   
Same as above. I;m almost sure you have the very same host seen with IP 
and MAC ad the same this. This is either an ntop config issue or you 
have an issue in your net
> and it still filling the sys-log with that kind of message. More strange
> is the plugin gots disabled but ntop stills write rrd's... Is this the
>   
ntop still saves data into the throughput rrds

Luca
> right behavior? Also, in the Arbitrary Graphs, in file selection, too
> many options are shown and many don't work, because are not set maybe.
>
> All I want to record periodically, is the amount of data per host and if
> possible by protocol. I guess there should be an easy way, but don't
> know how yet.
>
>
> Appreciate any help!
> André Ribeiro
>
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