Hi,
> log-format "%{+Q}[var(txn.pv)]"
Could you please try adding %B to your log-format string as well?
example:
> log-format "%{+Q}[var(txn.pv)] (%B)"
What I suspect is that the logline is builded before the tcp-response
rules are actually evaluated.
Some haproxy log format specifiers/variables add the LW_BYTES flag to
px->to_log to prevent the log from being emitted too early (ie: if some
of the variables depend on the response: %B, %TR...), but as far as I
know this flag cannot be set manually when using custom log-format
variables.
Adding "%B" or response-oriented log variables (that enables LW_BYTES
flag) to your custom log-format should act as a workaround to make sure
the logline is builded after the response rules have been evaluated
(at the end of the session, unless "option logasap" is specified).
Regards,
Aurelien
