hi create a beanshell sampler and try and call the same code, see if you get any errors in jmeter.log.
regards deepak On Tue, Dec 14, 2010 at 8:03 AM, Josh Abts <[email protected]> wrote: > Hi Deepak, > > How would I go about debugging this? I copied the file into my jmeter/lib > folder and have tried your test file and I am not seeing any response data > which should just be an int counting up from looking at your code. I tried > looking at the jmeter.log but I am not seeing anything in there. > > I am running Java 1.6 so the atomic counter shouldn't be the problem. Any > suggestions? > > Thanks, > Josh > > On Thu, Dec 9, 2010 at 7:31 PM, Deepak Shetty <[email protected]> wrote: > > > hi > > a. so within a thread , a timestamp will always increment so that isnt a > > problem. however the question is , is the following scenario valid? > > > > Thread 1 > > 1, 2, 2010-12-9T11:15:00 > > rest increment > > > > Thread 2 > > 1, 2, 2010-12-9T11:15:00 > > rest increment may or may not match other values in thread 1 > > > > is this allowed ? If the answer is no , im curious , you have requests > > arriving concurrently , why cant they have the same value if they arrive > at > > exactly the same time (different users)? > > > > > > b. This is an example of the way you can implement some custom stuff. > > The jar file source included is available here(minimum java 1.5 , if you > > need lower than this you will have to change the atomic Integer to a > normal > > one and synchronize the method) - > > > > > http://cid-1bd02fe33f80b8ac.office.live.com/self.aspx/Public/jmeter/StaticCounter/staticcounter.jar > > > > Change the code(org.md.counter.StaticCounter.java) as you need , compile > > into a jar and drop this jar into $JMETER_HOME/lib (or to test you can > > directly drop the jar into your lib). > > > > Then access the incremented shared value as > > ${__BeanShell(org.md.counter.StaticCounter.getNewValue())} sample JMX > file > > here > > > > > http://cid-1bd02fe33f80b8ac.office.live.com/self.aspx/Public/jmeter/StaticCounter/StaticCounterTest.jmx > > > > you can also change the java code to implement what you need (i.e. return > a > > Date string formatted as you want, or added as you want) > > > > > > regards > > deepak > > > > > > > > > > On Thu, Dec 9, 2010 at 5:03 PM, Josh Abts <[email protected]> > wrote: > > > > > No, they should not have the same timestamp. That is the problem, > > > basically > > > the coordinates in the CSV are organized in a "route" so the timestamps > > > have > > > to be successive or the route will be out of order. Essentially this > > will > > > test a route over and over with time constantly moving forward (no > > repeated > > > time stamps, but repeated coordinates). A further description: > > > > > > Thread 1 > > > 1, 2, 2010-12-9T11:15:00 > > > 3, 4, 2010-12-9T11:15:10 > > > 5, 6, 2010-12-9T11:15:30 > > > > > > Thread 2 > > > 1, 2, 2010-12-9T11:15:20 > > > 3, 4, 2010-12-9T11:15:40 > > > 5, 6, 2010-12-9T11:15:50 > > > > > > This would be acceptable. It would also be nice if the time was > > > configurable (could specify a starting time and the amount by which > each > > > successive entry should increment, but that wouldn't be necessary. > > > > > > Thanks again Deepak! > > > > > > On Thu, Dec 9, 2010 at 6:53 PM, Deepak Shetty <[email protected]> > wrote: > > > > > > > hi > > > > so why not use a timestamp (different threads may have same values , > is > > > > this > > > > allowed?) > > > > http://jakarta.apache.org/jmeter/usermanual/functions.html#__time > > > > again we can help you write a shared incrementing counter , the only > > > > question is do you really need it or whether there are simpler ways. > > > > regards > > > > deepak > > > > > > > > > > > > On Thu, Dec 9, 2010 at 4:47 PM, Josh Abts <[email protected]> > > > wrote: > > > > > > > > > I am not exactly sure how to add a class to do this like you > > mentioned. > > > > > Still new to JMeter. > > > > > > > > > > Basically what I am trying to do is I have a list of coordinates in > a > > > > CSV. > > > > > Each HTTP request contains a pair of coordinates (from the CSV) and > > > then > > > > a > > > > > timestamp. But the timestamp should be increasing by some value > > > > > continuously (persisting throughout runs). As a very simple > example, > > > > > assume > > > > > the csv contains 3 pairs of values {1,2; 3,4; 5,6} The requests > > would > > > > look > > > > > something like this: > > > > > > > > > > http://myurl/?a=1&b=2&c=2010-12-9T11:15:00 > > > > > http://myurl/?a=3&b=4&c=2010-12-9T11:15:10 > > > > > http://myurl/?a=5&b=6&c=2010-12-9T11:15:20 > > > > > http://myurl/?a=1&b=2&c=2010-12-9T11:15:30 > > > > > ...etc. > > > > > > > > > > So we can't easily add values into the CSV because we want the time > > to > > > > > continuously count up say if we had 200 threads in a forever loop > for > > 5 > > > > > minutes. Between runs it is fine if the time resets, but there > > should > > > be > > > > > persistence among threads and loops. > > > > > > > > > > I was able to get the CSV to loop properly, its just the time > > > persistence > > > > > that is the issue. > > > > > > > > > > Any ideas, samples/pointers? > > > > > > > > > > Thanks for the help! > > > > > Josh > > > > > > > > > > On Thu, Dec 9, 2010 at 4:59 PM, Deepak Shetty <[email protected]> > > > wrote: > > > > > > > > > > > Hi > > > > > > variables arent shared across threads (even in the same thread > > group) > > > > > > Properties are shared , but when you use multiple threads then > you > > > need > > > > > > some > > > > > > way to synchronize access so that only one thread increments the > > > > counter > > > > > at > > > > > > any one time. You could do this with Beanshell , but possibly it > > will > > > > be > > > > > > simpler to write a java class that holds a static counter that > > > > increments > > > > > > synchronously and just call it in a beanshell function to give > you > > > your > > > > > > number (avoids having the sampler in your results). > > > > > > > > > > > > However the first question to ask is why do you need actually > this > > ? > > > or > > > > > do > > > > > > you know how many numbers you need in advance (or a maximum) ? if > > you > > > > do > > > > > > then you can just generate a CSV file before you run your test(as > > > part > > > > of > > > > > > your ant build or as a separate threadgroup or something) that > has > > > the > > > > > > numbers and use a CSV data set config (you can choose the sharing > > > mode > > > > > > option that says all threads or current thread group) > > > > > > > > > > > > regards > > > > > > deepak > > > > > > > > > > > > On Thu, Dec 9, 2010 at 2:50 PM, Josh Abts < > [email protected] > > > > > > > > wrote: > > > > > > > > > > > > > Hello all, > > > > > > > > > > > > > > So I am a little confused with how variables are working in a > > > single > > > > > > Thread > > > > > > > Group. > > > > > > > > > > > > > > I have attached a "User Defined Variables" config element to my > > > > thread > > > > > > > group. From there I setup a HTTP Request sampler under the > > thread > > > > > group. > > > > > > > I > > > > > > > also under the thread group have a BeanShell Sampler with a > > script > > > > that > > > > > > > basically acts as a special counter to modify the User defined > > > > > variables > > > > > > > that are used in the Http request. > > > > > > > > > > > > > > But when I run the test using say 3 threads and 1 loop, it only > > > makes > > > > 3 > > > > > > > http > > > > > > > requests using the same value of the variable (the initial). > If > > I > > > > run > > > > > it > > > > > > > with 1 thread and 3 loops, it works as intended, giving 3 > > different > > > > > > values > > > > > > > properly incremented by the BeanShell sampler. > > > > > > > > > > > > > > In reading I ran across something that mentioned using JMeter > > > > > Properties > > > > > > to > > > > > > > share values between threads. But even with that I am still > not > > > able > > > > > to > > > > > > > get > > > > > > > it to properly use the values. > > > > > > > > > > > > > > What is the proper/best way to have a shared value among all > the > > > > > threads > > > > > > so > > > > > > > that it increments properly? And is a BeanShell sampler the > > proper > > > > way > > > > > > to > > > > > > > ensure it increments properly? I am using a CSV data set > config > > > for > > > > > the > > > > > > > http request for two variables in it. So essentially the CSV > has > > a > > > > > > static > > > > > > > list of values that is looped through but the counter should > keep > > > > going > > > > > > up > > > > > > > independently of that and just tags those values. > > > > > > > > > > > > > > My test hierarchy looks as such: > > > > > > > > > > > > > > Test plan > > > > > > > |- Thread Group > > > > > > > |- Http Request > > > > > > > |-Simple Data Writer > > > > > > > |- BeanShell Sampler > > > > > > > |- User Defined Variables > > > > > > > > > > > > > > Hopefully that is clear enough, if not, let me know I can > provide > > > any > > > > > > > additional details/samples. > > > > > > > > > > > > > > Thanks! > > > > > > > > > > > > > > -- > > > > > > > Joshua Abts > > > > > > > > > > > > > > > > > > > > > > > > > > -- > Joshua Abts > IT Specialist > VisTracks, Inc. > [email protected] > (630) 596-5426 >
