Re: [Ntop] Having trouble with rrd

Terri Kelley Tue, 19 Aug 2008 07:54:47 -0700

Make sure your permissions are correct for all the directories in there. I had to chmod -R the top directory which the others were trying to be created under then it worked fine.

Terri Kelley

Network Engineer

254-697-6710

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On Aug 18, 2008, at 5:43 PM, decon brody wrote:

Hi gang, I googled for this but couldn't find the answer.

I installed ntop like this:

yum groupinstall "Development Tools"
yum install rrdtool rrdtool-devel libpcap-devel gdbm-devel
svn co https://svn.ntop.org/svn/ntop/trunk/ntop
cd ntop
./autogen.sh --with-rrd-home=/usr
make
make install

Then I started it up on my bridge interface like this
ntop -i br0 -d

Everything starts up, I can visit localhost:3000, I can see pie charts etc. But this is in my logs (a lot)

Aug 18 15:38:05 monitor ntop[5432]:   **WARNING** RRD: rrd_update(/usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd) error: opening '/
usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd': strerror_r failed. sorry!
Aug 18 15:38:15 monitor ntop[5432]:   **WARNING** RRD: rrd_update(/usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd) error: opening '/
usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd': strerror_r failed. sorry!
Aug 18 15:38:24 monitor ntop[5432]:   **ERROR** RRD: rrd_graph() call failed, rc -1, mmaping file '/usr/local/var/ntop/rrd/interfaces/br0/
IP_MessengerBytes.rrd': strerror_r failed. sorry!
Aug 18 15:38:24 monitor ntop[5432]:   RRD: Failing file in graphCounter() is /usr/local/var/ntop/rrd/interfaces/br0/IP_MessengerBytes.rrd
Aug 18 15:38:24 monitor ntop[5432]:   **ERROR** RRD: rrd_graph() call failed, rc -1, mmaping file '/usr/local/var/ntop/rrd/interfaces/br0/
IP_MessengerBytes.rrd': strerror_r failed. sorry!
Aug 18 15:38:24 monitor ntop[5432]:   RRD: Failing file in graphSummary() is /usr/local/var/ntop/rrd/interfaces/br0/IP_MessengerBytes.rrd
Aug 18 15:38:25 monitor ntop[5432]:   **WARNING** RRD: rrd_update(/usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd) error: opening '/
usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd': strerror_r failed. sorry!
Aug 18 15:38:35 monitor ntop[5432]:   **WARNING** RRD: rrd_update(/usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd) error: opening '/
usr/local/var/ntop/rrd/interfaces/br0/throughput.rrd': strerror_r failed. sorry!

I start ntop as root but I have /usr/local.var/ntop owned by apache:apache For some reason the rrd directory wasn't created for me, so I manually created it, I also then created flows/ graphics/ interfaces/ AND I tried interfaces/br0/throughput.rrd. Of course to no avail.

I've installed every rrd packacge I can find:

collectd-rrdtool.i386                    4.3.3-3.fc9            installed
perl-RRD-Simple.noarch                   1.43-3.fc9             installed
rrdtool.i386                             1.3.0-1.fc9            installed
rrdtool-devel.i386                       1.3.0-1.fc9            installed
rrdtool-doc.i386                         1.3.0-1.fc9            installed
rrdtool-perl.i386                        1.3.0-1.fc9            installed
rrdtool-php.i386                         1.3.0-1.fc9            installed
rrdtool-python.i386                      1.3.0-1.fc9            installed
rrdtool-ruby.i386                        1.3.0-1.fc9            installed
rrdtool-tcl.i386                         1.3.0-1.fc9            installed

Any ideas? Thanks! :)

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Re: [Ntop] Having trouble with rrd

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