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From James McBryan <ja...@twomile.com>
Subject Re: How do you make JMeter work from Private IP Addresses?
Date Wed, 19 Aug 2009 22:28:08 GMT
Actually,

I just noticed that Amazon EC2 servers are all on the same subnet  
together.

James McBryan





On Aug 19, 2009, at 1:59 PM, James McBryan wrote:

> Hey Claude,
>
> In your article, you mention "The first problem I faced is that the  
> JMeter master and its slaves must be in the same sub-network to be  
> able to communicate, so my JMeter farm had to define two different  
> roles, one for the master (jmeter-master) with only one instance  
> and one for the slaves (jmeter-slave) with as many instances as  
> necessary."
>
> How did you get each of the AMI instances on to the same sub- 
> network.  I am not using anything like scalr, is there anyway  
> without scalr to create like 3 AMI instances on the same subnetwork?
>
> James McBryan
>
>
>
>
> On Aug 18, 2009, at 3:18 AM, Claude Vedovini wrote:
>
>> Hi James,
>>
>> I ran into the same issue, the master and slaves need to be on the
>> same sub-network.
>> I wrote a blog post explaining my setup:
>> http://vedovini.net/2009/08/jmeter-distributed-testing-with-amazon- 
>> ec2/
>>
>> Claude Vedovini
>> ---
>> Software Consulting & Development
>> +41 78 617 86 98
>> http://vedovini.net/
>> http://www.dita-op.org/
>>
>>
>>
>> 2009/8/18 James McBryan <james@twomile.com>:
>>> Hey JMeter Users,
>>>
>>> I am trying to use JMeter with this setup:
>>> 1) Server on Amazon EC2 with its own static IP aaa.bbb.ccc.ddd
>>> 2) Client on my local dev box behind a router with an IP address if
>>> 192.168.0.10
>>>
>>> To run the server I execute
>>>>> ./bin/jmeter_server
>>>
>>> To run the client I type
>>>>> ./bin/jmeter -n -t bin/testplan.jmx -R aaa.bbb.ccc.ddd
>>>
>>> When I run the test plan the server hangs and the tests never  
>>> finish and the
>>> results never populate.  Looking at the jmeter-server.log I see Java
>>> exceptions like this:
>>>
>>> 2009/08/17 20:49:25 INFO  -  
>>> jmeter.samplers.RemoteListenerWrapper: Test
>>> Started on aaa.bbb.ccc.ddd
>>> 2009/08/17 20:52:34 ERROR - jmeter.samplers.RemoteListenerWrapper:
>>> testStarted(host) java.rmi.ConnectException: Connection refused  
>>> to host:
>>> 192.168.0.10; nested exception is:
>>>        java.net.ConnectException: Connection timed out
>>>
>>> And looking at nmap, my server is sending these every minute or so:
>>> 22:35:36.106299 IP aaa.bbb.ccc.ddd.42641 > 192.168.0.10.58349: S
>>> 1916790738:1916790738(0) win 5840 <mss 1460,sackOK,timestamp  
>>> 90441062
>>> 0,nop,wscale 7>
>>>
>>> I can understand why the client test doesn't work.. the remote  
>>> server is
>>> sending packets to the wronge place.  I have looked through  
>>> numerous mailing
>>> posts and it seems like many other people have these problems  
>>> however no one
>>> really reports a succesful solution.  I have concluded that  
>>> JMeter just
>>> won't work from clients with private IP addresses.  Is this  
>>> true?  and if
>>> not (hopefully not) what is the solution?
>>>
>>> Thanks,
>>> James
>>>
>>>
>>>
>>>
>>>
>>>
>>
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>


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