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List:       jmeter-dev
Subject:    DO NOT REPLY [Bug 46838] New: HTTP sampler will always set the
From:       bugzilla () apache ! org
Date:       2009-03-12 5:07:35
Message-ID: bug-46838-1333 () https ! issues ! apache ! org/bugzilla/
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https://issues.apache.org/bugzilla/show_bug.cgi?id=46838

           Summary: HTTP sampler will always set the latency to 0 if
                    response contains no data
           Product: JMeter
           Version: 2.3.2
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTTP
        AssignedTo: jmeter-dev@jakarta.apache.org
        ReportedBy: Wang_zhifeng@emc.com


When I run a post operation which do a create operation on the server, the
latency of the web request is always 0 no matter how big the operation is. 
I traced into the source file, and found in HTTPSamplerBase.java, if no
response data, the sampleResult.latencyEnd(); will not be called. 

while ((bytesRead = in.read(readBuffer)) > -1) {
            if (first) {
                sampleResult.latencyEnd();
                first = false;
            }
            if (asMD5 && md != null) {
                md.update(readBuffer, 0 , bytesRead);
                totalBytes += bytesRead;
            } else {
                w.write(readBuffer, 0, bytesRead);
            }
        }

Add following code after the while loop will fix this bug.
if (first)
    sampleResult.latencyEnd();

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