HAProxy stats page explanation

Question

In the HAProxy stats page under the front end section what does Errors - Req mean?

Errors             |
Req   | Conn | Resp
31 758|      |

Answer 1

From the documentation, this value maps to the ereq column in the CSV stats page and means the following:

12. ereq [LF..]: request errors. Some of the possible causes are:
    • early termination from the client, before the request has been sent.
    • read error from the client
    • client timeout
    • client closed connection
    • various bad requests from the client.
    • request was tarpitted.