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Subject [Bug 61378] New: JMETER -creating large number of TCP connections while testing JMS application
Date Thu, 03 Aug 2017 20:22:24 GMT

            Bug ID: 61378
           Summary: JMETER -creating large number of TCP connections while
                    testing JMS application
           Product: JMeter
           Version: 3.1
          Hardware: PC
            Status: NEW
          Severity: critical
          Priority: P2
         Component: Main
  Target Milestone: ---

While testing the TIBCO application using JMS Publisher. Jmeter is creating
large number of TCP connections and is effecting the performance of the
application. Below is our scenario

I have 40  different messages to test in TIBCO and will be posting these
messages into 10 different queues with varied TPS. In order to test , I have
created a thread group under the test plan and have added 40 JMS Publisher
samplers to the threadgroup . ideally in this scenario if I run with 1 thread ,
there should only be one tcp connection since I am going sequentially one of
after the sampler. However Jmeter is creating 3 connections for every sample
and closing 2 connections and keeping 1 connection open till the end of
iteration . 

Since we have 40 samples to go through it will create 40 connections per 1
thread per 1 iteration and as during the load test we will run with more
threads we will end up in creating large number of tcp connections . 

In real world, Connections are fixed and will be reused where as in this case
new connection is established every time.

Request you to provide solution for this issue and appreciate you for your time
and effort.

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