Hi all,
I have to test an application which is listening on a tcp port speaking a
proprietary protocol.
I set up a test using tcp sampler. Jmeter is showing the correct response, but
it is waiting till given response timeout. Then the following exception is
thrown:
2014/06/24 10:47:42 ERROR - jmeter.protocol.tcp.sampler.TCPSampler:
org.apache.jmeter.protocol.tcp.sampler.ReadException:
at
org.apache.jmeter.protocol.tcp.sampler.BinaryTCPClientImpl.read(BinaryTCPClientImpl.java:140)
at
org.apache.jmeter.protocol.tcp.sampler.TCPSampler.sample(TCPSampler.java:414)
at
org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:429)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:257)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at
org.apache.jmeter.protocol.tcp.sampler.BinaryTCPClientImpl.read(BinaryTCPClientImpl.java:126)
Thats nearly acceptable for qualitative testing, but a no go for load testing.
The protocol is divided into header and data. In the header the header's lentgh
and length of data is defined.
Unfortunately there is no fix byte / character which is marking the end of the
response such as \n or \r.
Because the protocol is given as is I need a way to calculate the eol
dynamically and give set the value in jmeter for each packet.
I need to do the following:
1. extracting the bytes for header length and data length out of each response
2. add them to get the given length of response
3. set the result in jmeter as response length for current response
4. -> jmeter will only read the current packet, and goes on to response
assertions, etc. -> no error is thrown
Please give any advise how to do this.
Biggest question: How can I define the end of line / message dynamically in
jmeter. I do not have any idea.
Additional question: Is a post processor or an assertion the correct position
to calculate the end of the packet?
Many thanks in advance,
Andreas
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
