tree f472ceea71dfd9e13ce8ee316c0d51c12b2bbc72
parent e1b9e1bb1ef42898c9ed0123950ba27788812064
author Christopher Faulet <cfaulet@haproxy.com> 1616669931 +0100
committer Christopher Faulet <cfaulet@haproxy.com> 1617283915 +0200

BUG/MINOR: payload/htx: Ingore L6 sample fetches for HTX streams/checks

Use a L6 sample fetch on an HTX streams or a HTX health-check is meaningless
because data are not raw but structured. So now, these sample fetches fail
when called from an HTTP proxy. In addition, a warning has been added in the
configuration manual, at the begining of the L6 sample fetches section.

Note that req.len and res.len samples return the HTX data size instead of
failing. It is not accurate because it does not reflect the buffer size nor
the raw data length. But we keep it for backward compatibility purpose.
However it remains a bit strange to use it on an HTTP proxy.

This patch may be backported to all versions supporting the HTX, i.e as far
as 2.0. But the part about the health-checks is only valid for the 2.2 and
upper.