Need help to explain JMeter error

[Bruno Charloup <bc...@jouve.fr>]

Hi all,

I'm a simple user of Jmeter, not a Java developer.

 

Does anybody could help me to understand the following error message :

 

java.net.ConnectException: Connection timed out: connect

                at java.net.PlainSocketImpl.socketConnect(Native Method)

                at java.net.PlainSocketImpl.doConnect(Unknown Source)

                at java.net.PlainSocketImpl.connectToAddress(Unknown Source)

                at java.net.PlainSocketImpl.connect(Unknown Source)

                at java.net.Socket.connect(Unknown Source)

                at java.net.Socket.connect(Unknown Source)

                at sun.net.NetworkClient.doConnect(Unknown Source)

                at sun.net.www.http.HttpClient.openServer(Unknown Source)

                at sun.net.www.http.HttpClient.openServer(Unknown Source)

                at sun.net.www.http.HttpClient.<init>(Unknown Source)

                at sun.net.www.http.HttpClient.New(Unknown Source)

                at sun.net.www.http.HttpClient.New(Unknown Source)

                at
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)

                at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)

                at
sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)

                at
org.apache.jmeter.protocol.http.sampler.HTTPSampler.sample(HTTPSampler.java:
457)

                at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.downloadPageResource
s(HTTPSamplerBase.java:1047)

                at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.resultProcessing(HTT
PSamplerBase.java:1257)

                at
org.apache.jmeter.protocol.http.sampler.HTTPSampler.sample(HTTPSampler.java:
540)

                at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBa
se.java:889)

                at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBa
se.java:875)

                at
org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:298)

                at java.lang.Thread.run(Unknown Source)

 

 

This message arrives 5 minutes after the beginning of a test with 100
virtual users.

JMeter 2.3 is launched on windows, with xms=xmx=1024 (I have 2 GB memory on
my PC).

 

I have tried to dispatch this load on 3 PC  (1 master and 2 slaves) and I
have the same behaviour on the master.

 

The stressed application is requested through internet (not on the same
LAN).

 

Thanks in advance for any explanation and/or advice on Jmeter settings.

 

-- 
Bruno 

 

Re: Need help to explain JMeter error

[Ronan Klyne <ro...@groupbc.com>]

Bruno Charloup wrote:
> java.net.ConnectException: Connection timed out: connect
> 
>                 at java.net.PlainSocketImpl.socketConnect(Native Method)
> 
>                 at java.net.PlainSocketImpl.doConnect(Unknown Source)
> 
>                 at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
> 
>                 at java.net.PlainSocketImpl.connect(Unknown Source)
> 
>                 at java.net.Socket.connect(Unknown Source)
> 
>                 at java.net.Socket.connect(Unknown Source)
> 
>                 at sun.net.NetworkClient.doConnect(Unknown Source)
> 
>                 at sun.net.www.http.HttpClient.openServer(Unknown Source)
> 
>                 at sun.net.www.http.HttpClient.openServer(Unknown Source)
> 
>                 at sun.net.www.http.HttpClient.<init>(Unknown Source)
> 
>                 at sun.net.www.http.HttpClient.New(Unknown Source)
> 
>                 at sun.net.www.http.HttpClient.New(Unknown Source)
> 
>                 at
> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
> 
>                 at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
> 
>                 at
> sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
> 
>                 at
> org.apache.jmeter.protocol.http.sampler.HTTPSampler.sample(HTTPSampler.java:
> 457)
> 

This is a TCP connection timeout when JMeter is trying to get a web page.

> 
> This message arrives 5 minutes after the beginning of a test with 100
> virtual users.

That'll be the duration of the timeout.

> JMeter 2.3 is launched on windows, with xms=xmx=1024 (I have 2 GB memory on
> my PC).
> 
>  
> 
> I have tried to dispatch this load on 3 PC  (1 master and 2 slaves) and I
> have the same behaviour on the master.
> 

I don't think this is due to load on the test running machine. It seems
more likely that this is a fault of your connection or server. Make sure
you're trying to connect to the right server, and that the server is on,
not firewalled, etc.

> 
> The stressed application is requested through internet (not on the same
> LAN).

I'd advise against this unless you've got mighty bandwidth, but your
mentioning this suggests you've thought about it...

	# r

-- 
Ronan Klyne
Business Collaborator Developer
Tel: +44 (0)870 163 2555
ronan.klyne@groupbc.com
www.groupbc.com

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