> Using a load balancer in front of GFS nodes is tricky. Make sure to set > your scheduling rule (or whatever it is called in LVS) in such a way Do you mean such as a session, so that the user is not moved between servers? That's something I did take into account when building the LVS LB's. I also have tested with the LVS and direct to the web nodes. The performance is just not what I expected but mind you, I've not done any fine tuning yet. Are there a series of steps I should be taking? I see a lot on the net but it's not too clear which things I really should try doing first. Mike > that it would not generate un-necessary lock traffic. For example, you > don't want the same write lock to get rotated between three nodes. Be > aware that moving a write lock between nodes requires many steps that > include a disk flush. > > -- Wendy > >> These are pretty much default apache RPM versions out of the box. >> >> # ab -kc 50 -t 30 http://192.168.1.150/ >> This is ApacheBench, Version 2.0.41-dev <$Revision: 1.141 $> apache-2.0 >> Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, >> http://www.zeustech.net/ >> Copyright (c) 1998-2002 The Apache Software Foundation, >> http://www.apache.org/ >> >> Benchmarking 192.168.1.150 (be patient) >> Finished 130 requests >> >> >> Server Software: Apache >> Server Hostname: 192.168.1.150 >> Server Port: 80 >> >> Document Path: / >> Document Length: 8997 bytes >> >> Concurrency Level: 50 >> Time taken for tests: 30.234185 seconds >> Complete requests: 130 >> Failed requests: 0 >> Write errors: 0 >> Keep-Alive requests: 0 >> Total transferred: 1371090 bytes >> HTML transferred: 1299586 bytes >> Requests per second: 4.30 [#/sec] (mean) >> Time per request: 11628.532 [ms] (mean) >> Time per request: 232.571 [ms] (mean, across all concurrent >> requests) >> Transfer rate: 44.25 [Kbytes/sec] received >> >> Connection Times (ms) >> min mean[+/-sd] median max >> Connect: 0 1 1.4 2 4 >> Processing: 409 6228 4357.5 5227 16317 >> Waiting: 369 6146 4370.8 5199 16261 >> Total: 409 6230 4358.1 5230 16321 >> >> Percentage of the requests served within a certain time (ms) >> 50% 5230 >> 66% 8331 >> 75% 9310 >> 80% 10386 >> 90% 12820 >> 95% 14502 >> 98% 15399 >> 99% 15746 >> 100% 16321 (longest request) >> >> >> -- >> Linux-cluster mailing list >> Linux-cluster@xxxxxxxxxx >> https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
