Reason for failed requests when using Apache's AB stress test

Just appearFailed requests there will be more than one row of requests for failure of the various reasons for data statistics, respectively, there areConnect, Length, andException three species, respectively, represent the meaning of:
Connect fails to send requirements, destination host connection failed, online interruption during request
length         Response content length inconsistent   (  Span lang= "en-US" > content-length  header value is based on  )
exception    An unexpected error occurred
and it is clear from the above instructions that all  failed requests  are falling on  length  This category, originally this is because the site under test is dynamic content, when the first issue  http request   and subsequent  http request  response to  html  length are different sizes   (  each response  content-length  size inconsistent  ), Will cause  failed requests   length  The failure of the problem, so this kind of  length  inconsistent failure is justified in the "Dynamic Web" stress test and can be disregarded.

Transfer from http://blog.csdn.net/jianfyun/article/details/6439068

Reason for failed requests when using Apache's AB stress test