Apache's own AB test failed request reason

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
The length of the response is inconsistent (based on the value of the content-length header )
Exception An unexpected error occurred
And from the above explanation can be clearly seen all the Failed requests fall in the Length of this category, originally this is because the site is tested on the homepage is dynamic content, when the first HTTP request and subsequent issued HTTP The HTML length of the request response is different (content-length size of each response ), which raises the length problem of Failed requests Failure, this type of Length inconsistency is justified in the "Dynamic Web" stress test and can be disregarded.

Pending follow-up ....

Apache's own AB test failed request reason