DO NOT REPLY [Bug 18178] New: - HTTP Sampler leaks connections in keep-alive

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18178

HTTP Sampler leaks connections in keep-alive

           Summary: HTTP Sampler leaks connections in keep-alive
           Product: JMeter
           Version: 1.8.1
          Platform: All
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: HTTP
        AssignedTo: jmeter-dev@jakarta.apache.org
        ReportedBy: jkb@stian.freeserve.co.uk


It looks like the HTTP sampler keeps creating new connections when using the 
keep-alive feature.

At the end of SampleResult, the connection is disconnected if the "Connection" 
header field is "close". [The conn variable is not set to null - should it be?]

However, at the beginning of the same routine it always creates a new 
connection using setupConnection(), even if Keep-Alive is being used.

This only becomes obvious under heavy load and/or long tests - otherwise the 
connections timeout and get cleared up anyway. [But it can be easily 
demonstrated with netstat!]

Not exactly sure where to correct this - but it looks as though 
setupConnection could return the previous connection if it still existed.

Meanwhile, a work-round is obviously to disable keep-alive.

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