Dear Luca,

While the colleagues are performing these steps, just one small clarification, 
is that -g or -q as in the first e-mail it said -q, and now it is -g?

Let me explain what I am trying to do here.
We have, among other links, a link to our Internet exchange, which brings quite 
a lot of ASes to our network. Just to be completely open, we are serving more 
than 5Gbps to our IP transit and Mobile broadband customers.

We do not expect to have line speed packet dissection, but this is what I have 
throught about:

1. We have a netFlow generator made from nProbe for Windows on one of our high 
end servers (rather old, but stil good)
2. The netflow generated there is being sent to ntop for processing.
3. I have aggregated as much as I could, since I just need traffic volumes not 
L4 info

What I expected:
1. To gave clear overview of top talkers in the network, as pairs if possible 
(I have abandoned two way since)
2. To have top ASes to which we are sending to/receiving form traffic
3. Some sort of trending of activities during the day

What I have done:

1. I have tried to limit the number of hosts to 200k, and now to 150k, but I 
still see 248k on the fisrt page. I regularily delete all data in the ntop, by 
resetting statistics or restarting a process.
2. I do not need a lot of history, just 5 days, but I could not find the right 
Preferences for this
3. I have made communities so I can easily track which prefixes generate most 
of the traffic. i understood that these are kept in Prefs DB, so I know how to 
move it when I migrate
4. I do not need session tracking, but, nothing changed after I have removed 
this. Now, perhaps, I misinterpreted "session" definition, since I just need 
from to and bytes transferred

Am I doing something wrong?

Kind regards and thanks,
Vladan

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Luca Deri
Sent: Tuesday, August 07, 2012 9:29
To: [email protected]
Cc: [email protected]
Subject: Re: [Ntop-dev] general instability and web link for a list of ASes 
fails

Vladan
please
1. update from svn
2. after you have run autogen.sh please edit Makefile and plugins/Makefile and 
replace -O2 with -g
3. make clean
4. make

and run ntop again

Thanks Luca
        
On Aug 6, 2012, at 4:28 PM, Vladan Milosevic <[email protected]> 
wrote:

> Luca,
> 
> I understand the issue, I have done it, among other things, to see how usable 
> it is in our environment.
> 
> Regarding the recompilation, my colleagues asked how we should to this, as, I 
> believe, we have used svn to install the software (being a network engineer, 
> I will take all the blame for posting stupidities regarding any OS and 
> programming stuff).
> 
> Excuse my ignorance again,
> Vladan 
> 
> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Luca Deri
> Sent: Monday, August 06, 2012 11:51
> To: [email protected]
> Cc: [email protected]
> Subject: Re: [Ntop-dev] general instability and web link for a list of ASes 
> fails
> 
> Vladan
> ntop was designed for a LAN whereas you seem to use it on a WAN. Beside this 
> problem that should be fixed that that is not easy to reproduce in my 
> environment, I would like you to recompile ntop with -q and without -O 2, 
> then in case of crash analyze the core a bit and send me a report so I can 
> try to figure out what is the problem about
> 
> Regards Luca
> 
> 
> On Aug 6, 2012, at 10:53 AM, Vladan Milosevic <[email protected]> 
> wrote:
> 
>> Hi All,
>> 
>> We had problems with 4.0.1 from the beginning, but we stoped looking into it 
>> since we are understaffed. I have written already and we have followed 
>> recommendations, but, as I have said, we have stopped...
>> 
>> Now, we are back in business, so to say.
>> 
>> We are experiencing the following, to say at least:
>> 
>> We are not able to see IP > Summary > ASes, the moment when it reaches 100 
>> or so pages. We get only blank page. I know that we have a lot of ASes, but 
>> this is our Internet link and we are experiencing up to 600Mbps throughput.
>> Also, the last update is far  from stable, but I would like to have things 
>> in some sort of order. I am owner of the process, a colleague works on this, 
>> so I am just an interface for him towards the list (it. excuse my slow 
>> responses and some errors).
>> 
>> So, here is what we have:
>> Aug  4 08:42:56 ntop-app-p-vm kernel: [152683.614541] ntop[3731]: segfault 
>> at 7f733c2f72a8 ip 00007f7345a81d09 sp 00007f733f2f8bc0 error 4 in 
>> libntopreport-5.0.so[7f7345a54000+80000]
>> 
>> these are the libraries used:
>> ntop-app-p-vm:~ # ldd /usr/local/lib/libntopreport-5.0.so
>>       linux-vdso.so.1 =>  (0x00007fffd4bff000)
>>       libntop-5.0.so => /usr/local/lib/libntop-5.0.so (0x00007fec25dc6000)
>>       libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007fec25b8b000)
>>       libc.so.6 => /lib64/libc.so.6 (0x00007fec2582c000)
>>       libssl.so.0.9.8 => /usr/lib64/libssl.so.0.9.8 (0x00007fec255d8000)
>>       libcrypto.so.0.9.8 => /usr/lib64/libcrypto.so.0.9.8 
>> (0x00007fec25239000)
>>       librrd_th.so.4 => /usr/lib64/librrd_th.so.4 (0x00007fec25003000)
>>       libgdbm.so.3 => /usr/lib64/libgdbm.so.3 (0x00007fec24dfd000)
>>       libz.so.1 => /lib64/libz.so.1 (0x00007fec24be7000)
>>       libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fec249c9000)
>>       libdl.so.2 => /lib64/libdl.so.2 (0x00007fec247c5000)
>>       libutil.so.1 => /lib64/libutil.so.1 (0x00007fec245c2000)
>>       libm.so.6 => /lib64/libm.so.6 (0x00007fec2436b000)
>>       libpython2.6.so.1.0 => /usr/lib64/libpython2.6.so.1.0 
>> (0x00007fec23fd3000)
>>       libGeoIP.so.1 => /usr/lib64/libGeoIP.so.1 (0x00007fec23da9000)
>>       libpcap.so.0 => /usr/lib64/libpcap.so.0 (0x00007fec23b72000)
>>       /lib64/ld-linux-x86-64.so.2 (0x00007fec2650f000)
>>       libxml2.so.2 => /usr/lib64/libxml2.so.2 (0x00007fec23816000)
>>       libpangocairo-1.0.so.0 => /usr/lib64/libpangocairo-1.0.so.0 
>> (0x00007fec23609000)
>>       libpango-1.0.so.0 => /usr/lib64/libpango-1.0.so.0 (0x00007fec233bf000)
>>       libcairo.so.2 => /usr/lib64/libcairo.so.2 (0x00007fec23141000)
>>       libpixman-1.so.0 => /usr/lib64/libpixman-1.so.0 (0x00007fec22ee6000)
>>       libfreetype.so.6 => /usr/lib64/libfreetype.so.6 (0x00007fec22c61000)
>>       libfontconfig.so.1 => /usr/lib64/libfontconfig.so.1 
>> (0x00007fec22a2f000)
>>       libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00007fec22806000)
>>       libxcb-render-util.so.0 => /usr/lib64/libxcb-render-util.so.0 
>> (0x00007fec22602000)
>>       libxcb-render.so.0 => /usr/lib64/libxcb-render.so.0 
>> (0x00007fec223f9000)
>>       libXrender.so.1 => /usr/lib64/libXrender.so.1 (0x00007fec221ee000)
>>       libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007fec21eb1000)
>>       libxcb-xlib.so.0 => /usr/lib64/libxcb-xlib.so.0 (0x00007fec21caf000)
>>       libxcb.so.1 => /usr/lib64/libxcb.so.1 (0x00007fec21a92000)
>>       libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007fec2188e000)
>>       libgobject-2.0.so.0 => /usr/lib64/libgobject-2.0.so.0 
>> (0x00007fec2164a000)
>>       libgmodule-2.0.so.0 => /usr/lib64/libgmodule-2.0.so.0 
>> (0x00007fec21445000)
>>       libglib-2.0.so.0 => /usr/lib64/libglib-2.0.so.0 (0x00007fec2117f000)
>>       libpangoft2-1.0.so.0 => /usr/lib64/libpangoft2-1.0.so.0 
>> (0x00007fec20f55000)
>>       libexpat.so.1 => /lib64/libexpat.so.1 (0x00007fec20d2b000)
>>       libpcre.so.0 => /usr/lib64/libpcre.so.0 (0x00007fec20afa000)
>> 
>> OS is SUSE Linux Enterprise Server 11 SP1 for VMware  (x86_64) kernel 
>> 2.6.32.59-0.7. It has 2 vCPUs and 12GB of RAM
>> 
>> Thanks a lot for any insight.
>> 
>> Kind regards,
>> Vladan
>> _______________________________________________
>> Ntop-dev mailing list
>> [email protected]
>> http://listgateway.unipi.it/mailman/listinfo/ntop-dev
> 
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