> >> On Fri, May 11, 2012 at 9:53 AM, Camilo Sperberg <unreal4u@xxxxxxxxx> >> wrote: >>> >>> >>> Sent from my iPhone 5 Beta [Confidential use only] >>> >>> On 11 mei 2012, at 07:09, "Lars Nielsen" <lars@xxxxxxxx> wrote: >>> >>>> >>>>> >>>>> On 10 mei 2012, at 23:26, Lars Nielsen wrote: >>>>> >>>>>> >>>>>>> >>>>>>> >>>>>>> Sent from my iPhone 5 Beta [Confidential use only] >>>>>>> >>>>>>> On 10 mei 2012, at 17:40, Matijn Woudt <tijnema@xxxxxxxxx> wrote: >>>>>>> >>>>>>>> On Thu, May 10, 2012 at 9:04 AM, Lars Nielsen <lars@xxxxxxxx> >>>>>>>> wrote: >>>>>>>>> Hi there, >>>>>>>>> >>>>>>>>> I have apache-2.22/php 5.3.10 set up on a dedicated server but I >>>>>>>>> have >>>>>>>>> a >>>>>>>>> strange issue. >>>>>>>>> >>>>>>>>> I have made a Drupal 7 site with a mysql db. >>>>>>>>> >>>>>>>>> If I stress-test the site with : ab -c 1 -n 150 http://sitename/ >>>>>>>>> it >>>>>>>>> works >>>>>>>>> fine. >>>>>>>>> If I stress-test the site with : ab -c 2 -n 20 http://sitename/ >>>>>>>>> it >>>>>>>>> kills >>>>>>>>> apache. >>>>>>>>> If I stress-test the site with : ab -c 50 -n 1500 >>>>>>>>> http://sitename/static.html it works fine. >>>>>>>>> >>>>>>>>> I have set apache's errorlog to debug. But it writes nothing, >>>>>>>>> either >>>>>>>>> in >>>>>>>>> the virtualhost or in the server-file. >>>>>>>>> >>>>>>>>> Can anyone give a hint about what can be wrong? >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> What do you mean with 'kills apache', does it terminate apache or >>>>>>>> does >>>>>>>> apache hang (eg. 100% cpu), and respond normal after the stress >>>>>>>> test >>>>>>>> is over? >>>>>>>> And what is the index of your site? A php script, or..? Do you >>>>>>>> have >>>>>>>> ModRewrite redirects etc? >>>>>>>> >>>>>>>> - Matijn >>>>>>>> >>>>>>>> -- >>>>>>>> PHP General Mailing List (http://www.php.net/) >>>>>>>> To unsubscribe, visit: http://www.php.net/unsub.php >>>>>>>> >>>>>>> >>>>>>> Can you visit the site normally? Try less verbosing in apache, that >>>>>>> is >>>>>>> pretty intensive, but as you can benchmark a static file well (with >>>>>>> moderate high settings), i assume it is some configuration problem >>>>>>> in >>>>>>> drupal. >>>>>>> >>>>>>> Greeting. >>>>>>> -- >>>>>>> PHP General Mailing List (http://www.php.net/) >>>>>>> To unsubscribe, visit: http://www.php.net/unsub.php >>>>>>> >>>>>>> >>>>>> >>>>>> Hi, >>>>>> >>>>>> I can visit the site normaly, but with 2-3 concurrent ab test it >>>>>> fails. >>>>>> seen from 'ps' and 'htop' it seems that both apache and mysql >>>>>> continues >>>>>> to >>>>>> run normaly but it doesnt respond. >>>>>> >>>>>> If i run netstat -an after the test it shows this : >>>>>> Active Internet connections (servers and established) >>>>>> Proto Recv-Q Send-Q Local Address      Foreign Address >>>>>>  State >>>>>> tcp     0    0 0.0.0.0:22        0.0.0.0:* >>>>>>     LISTEN >>>>>> tcp     0    0 127.0.0.1:25       0.0.0.0:* >>>>>>  >>>>>>    LISTEN >>>>>> tcp     0    0 127.0.0.1:3306      0.0.0.0:*  >>>>>>    LISTEN >>>>>> tcp     0    0 0.0.0.0:80        0.0.0.0:* >>>>>>     LISTEN >>>>>> tcp     1    0 x.x.x.x:80     x.x.x.x:39237  >>>>>> CLOSE_WAIT >>>>>> tcp     1    0 x.x.x.x:80     x.x.x.x:39236  >>>>>>  CLOSE_WAIT >>>>>> tcp     0    0 x.x.x.x:22     x.x.x.x:47383  >>>>>>  ESTABLISHED >>>>>> tcp     0    0 127.0.0.1:80      >>>>>>  127.0.0.1:34775 >>>>>> ESTABLISHED >>>>>> tcp     1    0 x.x.x.x:80     x.x.x.x:39300  >>>>>>  CLOSE_WAIT >>>>>> ESTABLISHED >>>>>> tcp     0    0 127.0.0.1:34775     127.0.0.1:80 >>>>>> ESTABLISHED >>>>>> tcp     0    0 x.x.x.x:80     x.x.x.x:39330  >>>>>>  ESTABLISHED >>>>>> tcp6    0    0 :::22          :::* >>>>>> LISTEN >>>>>> tcp6    0    0 ::1:25          :::* >>>>>> LISTEN >>>>>> >>>>>> So it does seem like there should be room for new tcp connections? >>>>>> >>>>>> But if I restart apache then it works again... So I guess it is a >>>>>> apache/php configuration issue? >>>>>> >>>>>> -- >>>>>> Med venlig hilsen / Best Regards >>>>>> >>>>>> LFWeb >>>>>> Lars Nielsen >>>>>> Thorsensvej 30 >>>>>> 4800 Nykøbing Falster >>>>>> Tlf: +45 20 64 85 76 >>>>>> email : lars@xxxxxxxx >>>>>> www : http://www.lfweb.dk >>>>>> >>>>>> >>>>>> -- >>>>>> PHP General Mailing List (http://www.php.net/) >>>>>> To unsubscribe, visit: http://www.php.net/unsub.php >>>>>> >>>>> >>>>> Have you tried benchmarking a really simple php page, such as >>>>> >>>>> <?php echo 'hello world'; ?> >>>>> >>>>> ? >>>>> >>>>> It that works, than it is definitely an issue in Drupal's >>>>> configuration >>>>> and not in PHP/Apache. Additionally, you could check what happens >>>>> when >>>>> you >>>>> try to establish a session or make a database call to rule out those >>>>> as >>>>> well, just make really simple tests that you know wouldn't fail and >>>>> run ab >>>>> on them. >>>>> >>>>> Greetings. >>>>> >>>>> >>>>> -- >>>>> PHP General Mailing List (http://www.php.net/) >>>>> To unsubscribe, visit: http://www.php.net/unsub.php >>>>> >>>>> >>>> Thanks! >>>> >>>> Now I have made >>>> <?php >>>>  echo "Hey from PHP!"; >>>> ?> >>>> >>>> It runs fine from a little concurrency. But with "-c 5 -n 500" it >>>> fails >>>> after 308 requests! >>>> >>>> >>>> >>>> Best Regards / Med venlig hilsen >>>> >>>> LFWeb >>>> Lars Nielsen >>>> >>>> >>>> -- >>>> PHP General Mailing List (http://www.php.net/) >>>> To unsubscribe, visit: http://www.php.net/unsub.php >>>> >>> >>> Have you tried benchmarking from localhost? Do you have any active >>> firewall? Selinux? Shorewall? Anything that could block a ddos attack? >>> >> >> A firewall is not the case here. He's testing with -c 2 and is getting >> errors, with -c 50 on a static file not. Also, blocking a DDOS attack >> at only 50 connections is way too low, so I don't think that would >> happen. >> >> - Matijn >> > Now i have the result of a test on localhost: > > > ab -c 1 -n 20 http://localhost/ > This is ApacheBench, Version 2.3 <$Revision: 655654 $> > Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ > Licensed to The Apache Software Foundation, http://www.apache.org/ > > Benchmarking localhost (be patient).....done > > > Server Software: Apache/2.2.22 > Server Hostname: localhost > Server Port: 80 > > Document Path: / > Document Length: 14463 bytes > > Concurrency Level: 1 > Time taken for tests: 3.540 seconds > Complete requests: 20 > Failed requests: 0 > Write errors: 0 > Total transferred: 298480 bytes > HTML transferred: 289260 bytes > Requests per second: 5.65 [#/sec] (mean) > Time per request: 177.020 [ms] (mean) > Time per request: 177.020 [ms] (mean, across all concurrent > requests) > Transfer rate: 82.33 [Kbytes/sec] received > > Connection Times (ms) > min mean[+/-sd] median max > Connect: 0 0 0.0 0 0 > Processing: 175 177 2.1 176 182 > Waiting: 153 156 1.7 155 160 > Total: 175 177 2.1 176 182 > > Percentage of the requests served within a certain time (ms) > 50% 176 > 66% 177 > 75% 177 > 80% 178 > 90% 182 > 95% 182 > 98% 182 > 99% 182 > 100% 182 (longest request) > > xx@grafikom:/home/xx# ab -c 2 -n 20 http://localhost/ > This is ApacheBench, Version 2.3 <$Revision: 655654 $> > Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ > Licensed to The Apache Software Foundation, http://www.apache.org/ > > Benchmarking localhost (be patient)...apr_poll: The timeout specified has > expired (70007) > Total of 3 requests completed > > > Does this give any meaning? > > > Med venlig hilsen > > LFWeb > Lars Nielsen > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > Arghh!!!! :-S Its an APC issue.... If I turn off php's apc it can handle multiple connections! ... have to study apc! Best regards / Med venlig hilsen LFWeb Lars Nielsen -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
