On 31/10/2007, Sonam Chauhan <[EMAIL PROTECTED]> wrote: > Thanks Sebb: > > I opened this enhancement request for the original DNS caching issue: > http://issues.apache.org/bugzilla/show_bug.cgi?id=43730 >
OK, seen it > > > clients, shouldn't this setting be disobeyed? For instance, suppose > > > JMeter emulates 10 concurrent clients (10 threads) simultaneously > > > executing a slow webservice - would 5 connections be made first, and > the > > > latter connections be made as the first batch finishes? > > > > No idea. Threads could well interact this way. > > > > This is one of the reasons that we added the HttpClient sampler, which > > gives full control over connection re-use. > > So does the standard 'HTTP Request' sampler use the built-in Java HTTP > implementation which is (probably) subject to these limits? If so, I Yes. > have a problem :D ... our automated test suite has more than 100 JMX > testscripts using 'HTTP Request', and not 'HTTP Request HTTPClient'. Whether you have a problem depends on what you are trying to prove with the tests, and whether the Java implementation restrictions have any measurable impact on the tests. If you suspect a JVM limit is having an effect, try splitting a test into two or more concurrent separate tests and see if there is a noticeable difference. Also you may be able to try changing the Java parameters to suit your tests. > JMeter Ver 2.1.1. (which we use) application help for 'HTTP Request' and > 'HTTP Request HTTPClient' states: > "There are two versions of the sampler - one uses the default > Java HTTP implementation, the other uses Commons HttpClient" > ... so I didn't know the differences. The 'Samplers' section of the user > manual does not mention the difference either: > > http://jakarta.apache.org/jmeter/usermanual/test_plan.html#samplers > Is there any more current documentation on HTTPClient? http://jakarta.apache.org/httpcomponents/httpclient-3.x/ > As these tests don't take the Java limits into account, should I shift > them to HTTPClient? See above - are the limits causing a problem? > The GUI interface for HTTP Request and HTTP Request > HTTPClient seems identical - so instead of editing all those testcases, > is it possible to manipulate the JMX XML by doing a search and replace > en-masse for the sampler name? Yes, see ConvertHTTPSampler.txt in the extras/ directory. You'll need to get this from a later version of JMeter or SVN. However, there have been a lot of improvements to the JMeter HttpClient code since 2.1.1, and the library itself has been updated, so I would recommend updating JMeter to 2.3 as well. > I've also opened enhancement request for the original issue: > http://issues.apache.org/bugzilla/show_bug.cgi?id=43730 > > Kind regards, > Sonam Chauhan > -- [snip] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
