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From umesh prajapati <praumes...@gmail.com>
Subject Re: Loop Count vs Number of Threads
Date Fri, 16 Aug 2013 17:30:27 GMT
I have opened a new thread as both of you have mentioned.

http://jmeter.512774.n5.nabble.com/java-net-SocketException-Connection-reset-td5717859.html


On Fri, Aug 16, 2013 at 10:19 AM, Flavio Cysne <flaviocysne@gmail.com>wrote:

> As sebb said, start a new thread with more explanations about what happened
> and we'll be glad to help you
>
>
> 2013/8/16 umesh prajapati <praumesh86@gmail.com>
>
> > I know this has to do with different topic but i am wondering if you
> could
> > help me out on this one too if possible.
> >
> > I am getting lots of connection reset error.
> >
> > java.net.SocketException: Connection reset
> >  at java.net.SocketInputStream.read(SocketInputStream.java:168)
> >  at
> >
> >
> org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)
> >  at
> >
> >
> org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:90)
> >  at
> >
> >
> org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:281)
> >  at
> >
> >
> org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:92)
> >  at
> >
> >
> org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62)
> >  at
> >
> >
> org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254)
> >  at
> >
> >
> org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289)
> >  at
> >
> >
> org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252)
> >  at
> >
> >
> org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:191)
> >  at
> >
> >
> org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300)
> >  at
> >
> >
> org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)
> >  at
> >
> >
> org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:717)
> >  at
> >
> >
> org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:522)
> >  at
> >
> >
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
> >  at
> >
> >
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:286)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:62)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.followRedirects(HTTPSamplerBase.java:1410)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.resultProcessing(HTTPSamplerBase.java:1481)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPAbstractImpl.resultProcessing(HTTPAbstractImpl.java:251)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.sample(HTTPHC4Impl.java:358)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:62)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1088)
> >  at
> >
> >
> org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1077)
> >  at
> >
> >
> org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:428)
> >  at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:256)
> >  at java.lang.Thread.run(Thread.java:619)
> >
> >
> > On Fri, Aug 16, 2013 at 8:53 AM, umesh prajapati <praumesh86@gmail.com
> > >wrote:
> >
> > > I would like to thank you very much for your time and help...it worked
> > out
> > > ...:)
> > >
> > >
> > >
> > > On Fri, Aug 16, 2013 at 8:07 AM, Flavio Cysne <flaviocysne@gmail.com
> > >wrote:
> > >
> > >> JMeter Test Plan will look like this:
> > >>
> > >> Test Plan
> > >>     - CSV Data Set Config (Recycle on EOF: True, Stop thread on EOF:
> > >> false,
> > >> Sharing mode: All threads)
> > >>     - Thread Group (threads: 250, rampup: 0, loop: 16)
> > >>         - HTTP Request 1
> > >>             - Synchronizing Timer (threads: 250)
> > >>             - Constant Timer (delay:
> > >> ${__javaScript(${__threadNum()}*1818)}
> > >>  // 60000 / 33 = ~1818
> > >>         - HTTP Request 2
> > >>         ...
> > >>         - HTTP Request n
> > >>
> > >>
> > >>
> > >> 2013/8/16 umesh prajapati <praumesh86@gmail.com>
> > >>
> > >> > Thank you very much for making me understand what constant timer
> is. I
> > >> see
> > >> > you mentioned about synchronizing timer . So you have mentioned that
> > >> > synchronizing timer will start all the threads at the same time. But
> > in
> > >> my
> > >> > case, I would like 33 users to login in 1 minute. And lets say i
> have
> > >> 250
> > >> > users in my csv file but I would like to run my test for 2 hrs. And
> to
> > >> > accomplish this I am increasing the number of loops. To complete one
> > >> loop
> > >> > lets say it takes 8 mins. so I will need around 15-16 loop counts.
> > >> >
> > >> > Number of threads: 250
> > >> > Ramo up: 0
> > >> > Loop: 16
> > >> >
> > >> > Constant timer to be added before http sampler : (60000/33) ms
> > >> >
> > >> > So do I need synchronizing timer. Because if I do add synchronizing
> > >> timer
> > >> > it will start all 250 users at once (just to be clear when you say
> > start
> > >> > all at once) did you mean all 250 user login request will be sent
at
> > >> same
> > >> > time.
> > >> >  On Aug 16, 2013 7:18 AM, "Flavio Cysne" <flaviocysne@gmail.com>
> > wrote:
> > >> >
> > >> > > When you use Synchronizing Timer all the threads will start at
the
> > >> same
> > >> > > time, when the number of threads started reaches the configured
> > value.
> > >> > > In your test plan Ramp-up will delay the start of the threads,
but
> > >> next
> > >> > > loop execution will break down your test, as you have stated.
> > >> > > Then Constant Timer is used to overcome this issue, delaying
the
> > start
> > >> > time
> > >> > > of the threads as ramp-up does, but not messing thing up after
the
> > >> first
> > >> > > loop.
> > >> > > BTW, your script Threads Group Ramp-up have to be 0 (zero).
> > >> > >
> > >> > >
> > >> > > 2013/8/16 umesh prajapati <praumesh86@gmail.com>
> > >> > >
> > >> > > > Thank you but I am still confused. So you mean constant
time
> also
> > >> does
> > >> > > the
> > >> > > > same job like ramp-up period. Lets say I have following
> > >> configuration
> > >> > > >
> > >> > > > Number of threads : 250
> > >> > > > Ramp up period : 450
> > >> > > > Loop : 3
> > >> > > >
> > >> > > > From what I have understood about rampup. It takes 450 seconds
> to
> > >> > > complete
> > >> > > > 250 threads. So the delay between thread 1 and thread 2
is
> 450/250
> > >> > > seconds.
> > >> > > >
> > >> > > > So if I also add constant timer to this configuration lets
say
> > >> > (450/250)
> > >> > > > seconds. I don't get why do we need constant timer when
ramp up
> is
> > >> > doing
> > >> > > > the same thing.
> > >> > > > On Aug 16, 2013 4:51 AM, "Flavio Cysne" <flaviocysne@gmail.com>
> > >> wrote:
> > >> > > >
> > >> > > > > No. The Constant Timer is the delay between the start
of one
> > >> thread
> > >> > to
> > >> > > > the
> > >> > > > > start of the next thread. No relation among threads
execution
> > >> time at
> > >> > > > all.
> > >> > > > > So if thread 1 starts and take 1 second to complete,
and
> > Constant
> > >> > Timer
> > >> > > > has
> > >> > > > > 300ms delay, then the second thread will start before
1st
> thread
> > >> > ends.
> > >> > > > >
> > >> > > > > Ramp-up also put this delay in your threads, the same
way
> > constant
> > >> > > timer
> > >> > > > > will do. If you want to leverage concurrency remove
the timer.
> > >> > > > >
> > >> > > > >
> > >> > > > > 2013/8/15 umesh prajapati <praumesh86@gmail.com>
> > >> > > > >
> > >> > > > > > If I put the timer, than it means 2nd request
has to wait
> > until
> > >> the
> > >> > > > first
> > >> > > > > > request is complete. This means if first request
is taking
> > time
> > >> to
> > >> > > > > process
> > >> > > > > > the request than 2nd request will not start until
the first
> > >> request
> > >> > > is
> > >> > > > > > completed.  Which means there won't be a load
but I am
> doing a
> > >> load
> > >> > > > test.
> > >> > > > > > On Aug 14, 2013 12:50 PM, "Flavio Cysne" <
> > flaviocysne@gmail.com
> > >> >
> > >> > > > wrote:
> > >> > > > > >
> > >> > > > > > > only in the first http sampler
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > > 2013/8/14 umesh prajapati <praumesh86@gmail.com>
> > >> > > > > > >
> > >> > > > > > > > one quick question do i add the timer
on thread group or
> > the
> > >> > http
> > >> > > > > > reques
> > >> > > > > > > > sampler
> > >> > > > > > > >
> > >> > > > > > > >
> > >> > > > > > > > On Wed, Aug 14, 2013 at 9:25 AM, umesh
prajapati <
> > >> > > > > praumesh86@gmail.com
> > >> > > > > > > > >wrote:
> > >> > > > > > > >
> > >> > > > > > > > > @ flavio Thanks ...will try it
out and let you know
> the
> > >> > result.
> > >> > > > > > > > >
> > >> > > > > > > > >
> > >> > > > > > > > > On Wed, Aug 14, 2013 at 8:35 AM,
Flavio Cysne <
> > >> > > > > flaviocysne@gmail.com
> > >> > > > > > > > >wrote:
> > >> > > > > > > > >
> > >> > > > > > > > >> I think you misunderstood me.
> > >> > > > > > > > >>
> > >> > > > > > > > >> "I know in my application,
one user is not allowed to
> > >> login
> > >> > > > > multiple
> > >> > > > > > > > >> times until
> > >> > > > > > > > >> the session thats logged in
is logged out."
> > >> > > > > > > > >>
> > >> > > > > > > > >> Loop 2 threads can't start
until all Loop 1 threads
> are
> > >> > over.
> > >> > > > > > > > >> Synchronizing
> > >> > > > > > > > >> Timer with "Number of simulated
users" equal to the
> > >> number
> > >> > of
> > >> > > > > > threads
> > >> > > > > > > > will
> > >> > > > > > > > >> ensure this.
> > >> > > > > > > > >>
> > >> > > > > > > > >> "@Flavio I dont need to start
all my thread at
> > once,..."
> > >> > > > > > > > >>
> > >> > > > > > > > >> That's why I suggest you to
use a Constant timer with
> > an
> > >> > > > > expression.
> > >> > > > > > > > >>
> > >> > > > > > > > >> "...But I would like to test
the real scenario, where
> > >> 2000
> > >> > > users
> > >> > > > > > login
> > >> > > > > > > > in
> > >> > > > > > > > >> 2
> > >> > > > > > > > >> hrs. So, basically 1 min 33
users."
> > >> > > > > > > > >>
> > >> > > > > > > > >> Modify that 300 in Constant
Timer expression for the
> > >> value
> > >> > > > > > equivalent
> > >> > > > > > > to
> > >> > > > > > > > >> time gap for 33 users within
1 minute. (60000ms / 33
> > >> users =
> > >> > > > > > > > ~1818ms/user)
> > >> > > > > > > > >>
> > >> > > > > > > > >> Regards
> > >> > > > > > > > >>
> > >> > > > > > > > >
> > >> > > > > > > > >
> > >> > > > > > > >
> > >> > > > > > >
> > >> > > > > >
> > >> > > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> > >
> > >
> >
>

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