On 28/07/2008, Dan Keeley <[EMAIL PROTECTED]> wrote: > Ok, i'm looking at this problem again and have a quick question. > > > We're using the XML/RPC sampler. Am i right in thinking that uses > httpclient underneath it?
Yes. > Anyway I tried setting the httpclient socket timeout to 6,000 up from 3,000 > and it didnt seem to make any difference. > > The problem we're seeing now is that we see spurious 3.5s peaks in response > times when all other requests are within 200ms. We've checked logging at > all ends of the system and have come to the conclusion these delays only > exist in jmeter. So i've guessed that the 1st connection is timing out > perhaps (3s default?) and then the second attempt works. Could that be > true? Is there any way I could up the debug logging or anything to prove > this point? > Yes, check the comments in jmeter.properties. However it may be tricky to set a suitable level of logging that generates enough info without producing lots of output... I suggest you run a very short test will full logging and cut it down as much as possible. Also perhaps use a protocol analyser such as Wireshark. This will show if any responses are longer than normal. If so, then it's not a JMeter problem. If not, it might be a JMeter problem, or it might be a JVM problem (not resuming the thread in a timely manner) or even an OS problem (not passing the IO back to Java quickly). > Many thanks again for any help!! > > Dan > ----- Original Message ----- From: "sebb" <[EMAIL PROTECTED]> > To: "JMeter Users List" <[email protected]>; > "Lists" <[EMAIL PROTECTED]> > Sent: Sunday, June 01, 2008 2:56 PM > Subject: Re: Connection refused... > > > > > > On 01/06/2008, sebb <[EMAIL PROTECTED]> wrote: > > > > > On 01/06/2008, Lists <[EMAIL PROTECTED]> wrote: > > > > > > > The jmeter.log file shows this: > > > > > > > > 2008/06/01 13:14:20 INFO - > > > > org.apache.commons.httpclient.HttpMethodDirector: > I/O exception > > > > (java.net.ConnectException) caught when processing request: > Connection timed > > > > out > > > > 2008/06/01 13:14:20 INFO - > > > > org.apache.commons.httpclient.HttpMethodDirector: > Retrying request > > > > > > > > > > > > I am assuming that the full connection refused then eventually > returns if > > > > the total number of retries fails. > > > > > > > > how many times does it retry? been googling for defaults but I can't > find > > > > any! > > > > > > > > > jmeter.properties has a link to: > > > > > > > http://jakarta.apache.org/commons/httpclient/preference-api.html > > > > > > which now redirects to: > > > > > > > http://hc.apache.org/httpclient-3.x/preference-api.html > > > > > > > > > > However, it looks like the retry count is not one of the available > preferences. > > > > > > > From searching the code, the default appears to be 3. > > > > > > > > > > See also httpclient.parameters in the bin directory > > > > > > > > > > Dan > > > > > > > > (Jmeter 2.3.1) > > > > > > > > > > > > --------- Original Message -------- > > > > From: JMeter Users List > <[email protected]> > > > > > > > > To: JMeter Users List > <[email protected]>, Lists > > > > <[EMAIL PROTECTED]> > > > > > > > > Subject: Re: Connection refused... > > > > Date: 01/06/08 13:18 > > > > > > > > > On 01/06/2008, Lists <[EMAIL PROTECTED]> wrote: > > > > > > hmm, i'm not sure this is the problem im seeing now :) > > > > > > > > > > > > I upped the ulimit and it seemed to improve but eventually > came > > > > back. > > > > > > > > > > > > So what could cause this? we see nothing in the logs at the > other > > > > > > > > end. > > > > > > > > > > Which logs are those? > > > > > AFAIK, the server log won't show failed connections, because they > will > > > > > be handled by the OS. > > > > > > > > > > > > > > > The other thing thats interesting is that every time this > happens > > > > the > > > > > > response time is always 224s . Why would that be? How many > times > > > > does it > > > > > > retry the connection before giving up? I can see some > messages in > > > > the logs > > > > > > about retrying... > > > > > > > > > > > > > > > > > > > > Which sampler are you using? > > > > > > > > > > > > > > > Thanks, > > > > > > Dan > > > > > > > > > > > > > > > > > > --------- Original Message -------- > > > > > > From: JMeter Users List > <[email protected]> > > > > > > To: JMeter Users List > <[email protected]> > > > > > > Subject: Connection refused... > > > > > > Date: 01/06/08 13:04 > > > > > > > > > > > > > It seems that you get this error: > > > > > > > > > > > > > > java.net.ConnectException: Connection refused > > > > > > > at > java.net.PlainSocketImpl.socketConnect(Native > > > > Method) > > > > > > > > > > > > > > When you run out of file descriptors on unix. (i.e. > ulimit -n) > > > > > > > > > > > > > > I think thats worth knowing - because the error seems > slightly > > > > misleading > > > > > > > although i guess technically correct. It's just in > this case > > > > the OS has > > > > > > > refused the connection rather than the target machine. > > > > > > > > > > > > > > Dan > > > > > > > > > > > > > > > ________________________________________________ > > > > > > > Message sent using UebiMiau 2.7.10 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > To unsubscribe, e-mail: > > > > > > > > [EMAIL PROTECTED] > > > > > > > > > > > For additional commands, e-mail: > > > > > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ________________________________________________ > > > > > > Message sent using UebiMiau 2.7.10 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > To unsubscribe, e-mail: > [EMAIL PROTECTED] > > > > > > For additional commands, e-mail: > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > To unsubscribe, e-mail: > [EMAIL PROTECTED] > > > > > For additional commands, e-mail: > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > ________________________________________________ > > > > Message sent using UebiMiau 2.7.10 > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: > [EMAIL PROTECTED] > > > > For additional commands, e-mail: > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: > [EMAIL PROTECTED] > > For additional commands, e-mail: > [EMAIL PROTECTED] > > > > > > > > > -------------------------------------------------------------------------------- > > > > No virus found in this incoming message. > Checked by AVG. > Version: 8.0.100 / Virus Database: 270.0.0/1484 - Release Date: 04/06/2008 > 16:40 > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
