Amos Jeffries wrote:
On Tue, 15 Dec 2009 21:56:08 +0200, Tsantilas Christos
<[email protected]> wrote:
Hi all,
this patch append the _ABORTED or _TIMEDOUT suffixes to the action access.log field.
The patch also exist for squid3.1 branch.

The development sponsored by the Measurement Factory


Description:
When an HTTP connection with a client times out, append _TIMEDOUT suffix to the Squid result code field in access.log.

When an HTTP connection with the client is terminated prematurely by
Squid, append _ABORTED suffix to the result code field in access.log.
Premature connection termination may happen when, for example, I/O
errors or server side-problems force Squid to terminate the master
transaction and close all associated connections.

The above changes make it possible to identify failed transactions even
when they have 200/200 received/send response status codes and a
"successful" Squid result code (e.g., TCP_MISS). This is important when
one does not want 1-hour "stuck" transactions for 15-byte GIFs to
significantly skew the mean response time statistics. Such transactions
eventually terminate due to, say, TCP errors, and the old code would
record huge response times for successfully-looking transactions.

-
Christos

Hi Amos,

? This seems like a situation that should never occur...

Not exactly.


Aborted and Timed Out transactions are 4xx/5xx errors from the client
viewpoint right?

Maybe the transaction aborted or timed out after the headers (and some body data) sent to the client.

or if they are really stale-on-error type pages we need to use MISS_STALE
tags.

I am not sure. In any case it is not bad idea to know the reason (a download aborted by the user for example, or timedout).


Amos


Regards,
    Christos

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