<br><font size=2 face="sans-serif">Thank you for the very quick answer!
The testip tag did the trick. Now I again have a near-zero-line for the
bbtest runtime.</font><br><br><br><font size=2 face="sans-serif">Thorsten Erdmann<br>ITI/EP68<br>Mercedes Benz Werk Hamburg<br>Tel.: +49-40-7920-2593<br>mobil: +49-160-8614383<br>Lotus-Fax:+49-711-1779043874<br>mail: thorsten.erdmann@daimler.com<br></font><br><br><br><table width=100%><tr valign=top><td width=40%><font size=1 face="sans-serif"><b>josh@imaginenetworksllc.com</b></font><p><font size=1 face="sans-serif">12.09.2008 15:43</font><table border><tr valign=top><td bgcolor=white><div align=center><font size=1 face="sans-serif">Bitte antworten an<br>hobbit@hswn.dk</font></div></table><br><td width=59%><table width=100%><tr valign=top><td><div align=right><font size=1 face="sans-serif">An</font></div><td><font size=1 face="sans-serif">hobbit@hswn.dk</font><tr valign=top><td><div align=right><font size=1 face="sans-serif">Kopie</font></div><td><tr valign=top><td><div align=right><font size=1 face="sans-serif">Thema</font></div><td><font size=1 face="sans-serif">Re: [hobbit] bbtest shows long DNS runtime,
why</font></table><br><table><tr valign=top><td><td></table><br></table><br><br><br><div align=center><br></div><br><font size=2 face="sans-serif">It seems that hobbit resolves all clients
via DNS: </font><font size=2><tt> <br> # hostnames resolved : 40</tt></font><font size=2 face="sans-serif"><br>Why that, I gave all names and it's corresponding IPs at the bb-hosts file?<br></font><font size=2 color=blue face="sans-serif"><u><br></u></font><a href=http://www.google.com/><font size=2 color=blue face="sans-serif"><u>www.google.com</u></font></a><font size=2 face="sans-serif"></font><a href=http://208.69.36.230/><font size=2 color=blue face="sans-serif"><u>208.69.36.230</u></font></a><font size=2 face="sans-serif"># <-- this will lookup </font><a href=http://www.google.com/><font size=2 color=blue face="sans-serif"><u>www.google.com</u></font></a><font size=2 face="sans-serif">and ping the IP, if it can't find an A record for it then it will use the
IP as a backup<br></font><font size=2 color=blue face="sans-serif"><u><br></u></font><a href=http://www.google.com/><font size=2 color=blue face="sans-serif"><u>www.google.com</u></font></a><font size=2 face="sans-serif"></font><a href=http://208.69.36.230/><font size=2 color=blue face="sans-serif"><u>208.69.36.230</u></font></a><font size=2 face="sans-serif"># testip <--- this will use the hostname for display purposes,
no dns lookup and skip to using the IP for the conn test<br><br>I have the same triangular graphs on hotspot networks with multiple APs.
This is normal, as far as I can tell.<br><br>Adding 400 hosts and 400 dns queries shouldn't cause too much of a load,
though, if you're worried about the DNS queries taking out the DNS servers
then just tack "testip" to the end of them. The conn/ping
test is awfully efficient, assuming you're using fping.<br><br>Are you using fping or hobbitping?<br></font><font size=3><br>Josh Luthman<br>Office: 937-552-2340<br>Direct: 937-552-2343<br>1100 Wayne St<br>Suite 1337<br>Troy, OH 45373<br><br>Those who don't understand UNIX are condemned to reinvent it, poorly.<br>--- Henry Spencer<br><br></font><br><font size=3>On Fri, Sep 12, 2008 at 9:38 AM, <</font><a href=mailto:thorsten.erdmann@daimler.com><font size=3 color=blue><u>thorsten.erdmann@daimler.com</u></font></a><font size=3>>
wrote:</font><br><font size=2 face="sans-serif"><br>Hi</font><font size=3><br></font><font size=2 face="sans-serif"><br>I am running hobbit against 40 clients. Two of these clients are our DNS
servers. Only on these two clients I have enabled the DNS test by adding
the DNS keyword to their bb-hosts line. I wanted to check the function
of the DNS servers</font><font size=3><br></font><font size=2 face="sans-serif"><br>If I look at the statistics of bbtest it looks like this:</font><font size=3><br></font><font size=2><tt><br>Fri Sep 12 15:26:08 2008</tt></font><font size=3><br></font><font size=2><tt><br>bbtest-net version 4.2.0<br>SSL library : OpenSSL 0.9.7a Feb 19 2003<br>LDAP library: OpenLDAP 20213</tt></font><font size=3><br></font><font size=2><tt><br>Statistics:<br> Hosts total :
41<br> Hosts with no tests : 1<br> Total test count : 44<br> Status messages : 45<br> Alert status msgs : 0<br> Transmissions : 2</tt></font><font size=3><br></font><font size=2><tt><br>DNS statistics:<br> # hostnames resolved : 40<br> # succesful :
40<br> # failed :
0<br> # calls to dnsresolve : 44</tt></font><font size=3><br></font><font size=2><tt><br>TCP test statistics:<br> # TCP tests total : 2<br> # HTTP tests :
1<br> # Simple TCP tests : 1<br> # Connection attempts : 2<br> # bytes written : 126<br> # bytes read : 871</tt></font><font size=3><br><br></font><font size=2><tt><br>TIME SPENT<br>Event
Starttime Duration<br>bbtest-net startup
1221225968.275331
-<br>Service definitions loaded
1221225968.276931 0.001600 <br>Tests loaded
1221225968.281365
0.004434 <br>DNS lookups completed
1221225973.283037 5.001672
<br>Test engine setup completed 1221225973.285332
0.002295 <br>TCP tests completed
1221225973.286398 0.001066
<br>PING test completed (40 hosts) 1221225974.166549
0.880151 <br>PING test results sent
1221225974.177932 0.011383
<br>Test result collection completed 1221225974.177943
0.000011 <br>LDAP test engine setup completed 1221225974.177944
0.000001 <br>LDAP tests executed
1221225974.177945 0.000001
<br>LDAP tests result collection completed 1221225974.177946
0.000001 <br>NSLOOKUP tests executed
1221225974.179452 0.001506
<br>Test results transmitted
1221225974.181039 0.001587 <br>bbtest-net completed
1221225974.182936 0.001897
<br>TIME TOTAL
5.907605
</tt></font><font size=3><br><br></font><font size=2 face="sans-serif"><br>What you see are two mystic things:</font><font size=3><br></font><font size=2 face="sans-serif"><br>It seems that hobbit resolves all clients via DNS: </font><font size=2><tt><br> # hostnames resolved : 40</tt></font><font size=2 face="sans-serif"><br>Why that, I gave all names and it's corresponding IPs at the bb-hosts file?</font><font size=3><br></font><font size=2 face="sans-serif"><br>The DNS test runs about 5 seconds for only these 40 clients, maybe that
is because of the first issue: </font><font size=2><tt><br> DNS lookups completed
1221225973.283037
5.001672</tt></font><font size=3><br></font><font size=2 face="sans-serif"><br>If you look at the graph, it gives very scary "triagle curves".
I've put a screenshot here: </font><a href=http://www.trektech.de/test/hobbitgraph.png target=_blank><font size=2 color=blue face="sans-serif"><u>http://www.trektech.de/test/hobbitgraph.png</u></font></a><font size=2 face="sans-serif"><br>The thing seems to have started when I put the DNS keyword to my two DNS
servers. Before it gave a nearly zero line.</font><font size=3><br></font><font size=2 face="sans-serif"><br>I want to add about 400 network switches which should only do a ping test
and I fear that this would extremely increase the runtime of the bbtest.<br>What can I do to decrease the runtime?</font><font size=3><br></font><font size=2 face="sans-serif"><br>Thorsten Erdmann<br>ITI/EP68<br>Mercedes Benz Werk Hamburg<br>Tel.: +49-40-7920-2593<br></font><font size=2 color=#808080 face="sans-serif"><br><br>If you are not the intended addressee, please inform us immediately that
you have received this e-mail in error, and delete it. We thank you for
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