Thanks Shmuel. Please see my answers inline. Few questions/ideas:
> 1. You mentioned you are using few servers to run the JMeter test. Is this > error shown on specific host or every time on a different host. > Not on specific host. > 2. What happen if you run only a partial load with a single JMeter host? Is > the error shown too? > The problem I saw only when I run my tests full throttle. > 3. Have you tried to switch to another HTTP Implementation on the samplers? > No. I will try out when I run the same test again. > 4. To log I would suggest you to use the Simple Data Writer and log all > data related with failing samples only. > Will try this out. > 5. Is it possible you simply overloading your SUT (System Under Test)? Did > you look at it during load test? > > As I mentioned, I see this problem when I run full throttle. I also tried capturing packets using tcpdump, but I could not find easy way to capture only relevant http connections which are failing. I will post to this thread if I make any in roads. Regards, Manish > > > Shmuel Krakower. > www.Beatsoo.org - re-use your jmeter scripts for application performance > monitoring from worldwide locations for free. > > > On Tue, Sep 24, 2013 at 7:32 PM, Manish Sapariya <[email protected] > >wrote: > > > Sebb, > > Thanks for the probing questions and sorry for the delay in reply. > > Somehow I did not notice this reply. > > > > > I see following exception for some request. However the request > > > > is successfully served as per the access log of httpd. > > > > ====================== > > > > > > Are you sure it's the same connection? > > > That does not seem possible. > > > > > > If the connection is refused, how can the server handle it? > > > > > > > That's what I could not figure out. > > > > > > > Double (triple) check which connections are succeeeding and which are > > > failing > > > > > > > I did cross check it with the unique identified in the request and made > > sure > > that its the only request. > > > > > > > Try using non-GUI mode on the client node. > > > > > > I'm suprised you need 10 servers for a total of 500 users. > > > Depending on the test plan, a single node can handle that. > > > > > > > My test is data heavy. Its a test to simulate a video tutorials > > viewing test. I forgot to mention that the test plan have 3 thread > > groups running in parallel. So it makes it 150 threads in single > > instance. > > > > I am still trying to chase the problem. In order to understand > > which connection is being rejected, I am trying to capture data > > packets, but its huge data. So I am trying to capture only syn, > > syn-ack and possible rst packets. But to do any kind of co-relation > > I need to know what local ports jmeter used. > > > > However I am not sure if jmeter can log the local port it used, or > > better yet, when it shows failed request with any kind of exception, > > can it also log local port for that socket? > > > > I tried to check the properties files, but could not find exactly what > > I was looking for. Turning the complete debugging for httpclient > > may be too much, and may also slow down the test itself. > > > > Any inputs? > > Thanks, > > Manish > > >
