From: Rich Smrcina <rsmrcina at wi.rr.com> Reply-To: hobbit at hswn.dk To: hobbit at hswn.dk Subject: Re: [hobbit] Please comment my test Hobbit server info Date: Thu, 31 Aug 2006 15:26:59 -0500
Some simple math shows that you could probably go to about 4000 hosts comfortably (with a 5 minutes test cycle time). Of course, there may be other factors to consider when you go that high, so YMMV.
I would also consider the fact that as hobbitping improves those ping times will come down.
I think it is possible to come up with a formula(algorithm) to predict maximum capacity by dervinng factors like ping, cpu load,disk space of a hobbit server.
lets leave it as a hobbit challenge for now.
Thanks for your comment.
tj
T.J. Yang wrote:
Currently most of hosts are ping test only. I can put more hosts on this hobbit server. 822 hosts is taking 42 seconds.
Answer I don't know is how many more hosts it can handle ?
How can I find what hosts are causing DNS lookup failures ?
Thanks for your time
tj
Output of bbest.
bbtest-net version 4.2.0 SSL library : OpenSSL 0.9.7b 10 Apr 2003 LDAP library: Sun Microsystems Inc. 500
Statistics: Hosts total : 822 Hosts with no tests : 0 Total test count : 841 Status messages : 840 Alert status msgs : 0 Transmissions : 12
DNS statistics:
hostnames resolved : 822
succesful : 317
failed : 505
calls to dnsresolve : 841
TCP test statistics:
TCP tests total : 15
HTTP tests : 4
Simple TCP tests : 11
Connection attempts : 15
bytes written : 666
bytes read : 11278
TIME SPENT Event Starttime
Duration bbtest-net startup 1157055015.522208Service definitions loaded 1157055015.529746
0.007538 Tests loaded 1157055025.655732
10.125986 DNS lookups completed 1157055030.723962
5.068230 Test engine setup completed 1157055030.733952
0.009990 TCP tests completed 1157055030.995307
0.261355 PING test completed (822 hosts) 1157055073.088812
42.093505 PING test results sent 1157055073.104640
0.015828 Test result collection completed 1157055073.105058
0.000418 LDAP test engine setup completed 1157055073.105060
0.000002 LDAP tests executed 1157055073.105062
0.000002 LDAP tests result collection completed 1157055073.105063
0.000001 NTP tests executed 1157055073.363425
0.258362 RPC tests executed 1157055073.411516
0.048091 Test results transmitted 1157055073.484927
0.073411 bbtest-net completed 1157055073.492452
0.007525 TIME TOTAL
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