Hi any other input required ? On Wed, May 4, 2011 at 9:48 AM, Harsimranjit singh Kler <simran...@gmail.com > wrote:
> > > Hi >> > > >> >> i have done testing as required using ab- please find details :. >> >> Please let me knw if anything other details required. >> >> Is this always manadatory that maxthread in tomcat shoud equal to >> maxclient(apache)? >> >> in my case traffic always distributes among 3 tomcats so i assume to give >> 500 maxthread on each tomcat(also high values for maxthread in tomcat not >> recomended) >> >> > Not sure if following worker setting is proper? > >> *http.conf* >> >> <IfModule mpm_worker_module> >> >> ServerLimit 50 >> >> StartServers 2 >> >> MaxClients 1500 >> >> MinSpareThreads 50 >> >> MaxSpareThreads 600 >> >> ThreadsPerChild 50 >> >> MaxRequestsPerChild 0 >> > > >> </IfModule> >> *Server.xml(for three tomcat)*** >> >> <Connector port="8008" >> >> enableLookups="false" redirectPort="8443" >> >> maxThreads="500" minSpareThreads="25" >> >> maxSpareThreads="75" acceptCount="100" >> protocol="AJP/1.3" /> >> >> >> *TEST* >> >> # ./ab -n 150 -c 50 http://10.58.116.20/test/test.html >> >> This is ApacheBench, Version 2.3 <$Revision: 655654 $> >> >> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ >> >> Licensed to The Apache Software Foundation, http://www.apache.org/ >> >> >> >> Benchmarking 10.58.116.20 (be patient).....done >> >> >> >> >> >> Server Software: Apache/2.2.17 >> >> Server Hostname: 10.58.116.20 >> >> Server Port: 80 >> >> >> >> Document Path: /test/test.html >> >> Document Length: 104 bytes >> >> >> >> Concurrency Level: 50 >> >> Time taken for tests: 0.369 seconds >> >> Complete requests: 150 >> >> Failed requests: 0 >> >> Write errors: 0 >> >> Total transferred: 52500 bytes >> >> HTML transferred: 15600 bytes >> >> Requests per second: 406.96 [#/sec] (mean) >> >> Time per request: 122.863 [ms] (mean) >> >> Time per request: 2.457 [ms] (mean, across all concurrent requests) >> >> Transfer rate: 139.10 [Kbytes/sec] received >> >> >> >> Connection Times (ms) >> >> min mean[+/-sd] median max >> >> Connect: 0 1 0.3 1 1 >> >> Processing: 1 112 111.2 84 337 >> >> Waiting: 1 112 111.2 84 337 >> >> Total: 1 113 111.3 85 338 >> >> >> >> Percentage of the requests served within a certain time (ms) >> >> 50% 85 >> >> 66% 141 >> >> 75% 185 >> >> 80% 215 >> >> 90% 330 >> >> 95% 335 >> >> 98% 336 >> >> 99% 337 >> >> 100% 338 (longest request) >> >> >> >> >> >> >> >> *]# ./ab -n 3000 -c 1000 **http://10.58.116.20/test/test.html*** >> >> This is ApacheBench, Version 2.3 <$Revision: 655654 $> >> >> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ >> >> Licensed to The Apache Software Foundation, http://www.apache.org/ >> >> >> >> Benchmarking 10.58.116.20 (be patient) >> >> Completed 300 requests >> >> Completed 600 requests >> >> Completed 900 requests >> >> Completed 1200 requests >> >> Completed 1500 requests >> >> Completed 1800 requests >> >> Completed 2100 requests >> >> Completed 2400 requests >> >> Completed 2700 requests >> >> Completed 3000 requests >> >> Finished 3000 requests >> >> >> >> >> >> Server Software: Apache/2.2.17 >> >> Server Hostname: 10.58.116.20 >> >> Server Port: 80 >> >> >> >> Document Path: /test/test.html >> >> Document Length: 104 bytes >> >> >> >> Concurrency Level: 1000 >> >> Time taken for tests: 7.246 seconds >> >> Complete requests: 3000 >> >> Failed requests: 0 >> >> Write errors: 0 >> >> Total transferred: 1050000 bytes >> >> HTML transferred: 312000 bytes >> >> Requests per second: 414.00 [#/sec] (mean) >> >> Time per request: 2415.471 [ms] (mean) >> >> Time per request: 2.415 [ms] (mean, across all concurrent requests) >> >> Transfer rate: 141.50 [Kbytes/sec] received >> >> >> >> Connection Times (ms) >> >> min mean[+/-sd] median max >> >> Connect: 0 31 277.8 0 3001 >> >> Processing: 1 1384 2297.0 136 7218 >> >> Waiting: 1 1383 2296.0 136 7217 >> >> Total: 57 1415 2308.5 140 7246 >> >> >> >> Percentage of the requests served within a certain time (ms) >> >> 50% 140 >> >> 66% 326 >> >> 75% 1756 >> >> 80% 3103 >> >> 90% 6392 >> >> 95% 6670 >> >> 98% 7065 >> >> 99% 7175 >> >> 100% 7246 (longest request) >> >> >> On Wed, May 4, 2011 at 2:55 AM, André Warnier <a...@ice-sa.com> wrote: >> >>> Christopher Schultz wrote: >>> >>>> -----BEGIN PGP SIGNED MESSAGE----- >>>> Hash: SHA1 >>>> >>>> André, >>>> >>>> On 5/2/2011 12:40 PM, André Warnier wrote: >>>> >>>>> He has 3 tomcats though. >>>>> Or did I misread that ? >>>>> >>>> >>>> Oh, well, there still might be a problem. No httpd configuration was >>>> shown (only workers.properties), so there are still situations where the >>>> connections can be way-off. >>>> >>>> For instance, if session stickiness is used and you get very unlucky, >>>> it's possible that two Tomcat backends will sit idle while the third >>>> will be handling 100% of the traffic. If that instance only has 500 >>>> connections available, there will be 1500 active connections >>>> bearing-down on it. :( >>>> >>> >>> Yes. Session stickines is used, and this scenario has been mentioned. >>> I have been trying to get the OP to use the standard Apache "ab" program, >>> with a simple request to a static page, to make sure that this was not the >>> case, in conditions that we can relate to. >>> Unfortunately, he does not seem convinced by the need to do so, so it is >>> a bit difficult to help further in that case. >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >>> For additional commands, e-mail: users-h...@tomcat.apache.org >>> >>> >> >
