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DOC: config: Update documentation about local haproxy response

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Documentation about 'L' state in the termination state was outdated. Today,
not only the request may be intercepted, but also the response.
Documentation about 'L' must be more generic.

However, documentation about possible 2-letter termination states was also
extended to add 'LC' and 'LH' in the list. And 'LR' was adapted too.

This patch should fix the issue #2384. It may be backported to every stable
versions. Note that on 2.8 and lowers, we talk about session and not stream.
This commit is contained in:
Christopher Faulet 2023-12-19 08:51:26 +01:00
parent d9eb6d6680
commit 0a203c1d3f
1 changed files with 13 additions and 4 deletions
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17
doc/configuration.txt
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@ -25386,8 +25386,7 @@ each of which has a special meaning :
dangerous error in server response which might have caused
information leak (e.g. cacheable cookie).
L : the stream was locally processed by HAProxy and was not passed to
a server. This is what happens for stats and redirects.
L : the stream was locally processed by HAProxy.
R : a resource on the proxy has been exhausted (memory, sockets, source
ports, ...). Usually, this appears during the connection phase, and
@ -25585,8 +25584,18 @@ easier finding and understanding.
closer to the average reported "Tw" timer, in order not to consume
resources for just a few attackers.
LR The request was intercepted and locally handled by HAProxy. Generally
it means that this was a redirect or a stats request.
LC The request was intercepted and locally handled by HAProxy. The
request was not sent to the server. It only happens with a redirect
because of a "redir" parameter on the server line.
LR The request was intercepted and locally handled by HAProxy. The
request was not sent to the server. Generally it means a redirect was
returned, an HTTP return statement was processed or the request was
handled by an applet (stats, cache, Prometheus exported, lua applet...).
LH The response was intercepted and locally handled by HAProxy. Generally
it means a redirect was returned or an HTTP return statement was
processed.
SC The server or an equipment between it and HAProxy explicitly refused
the TCP connection (the proxy received a TCP RST or an ICMP message