After giving it some thought, it could pretty well happen that other
protocols benefit from the sticky algorithm that some used to emulate
using a "stick-on int(0)" or things like this previously. So better
rename it to "sticky" right now instead of having to keep that "log-"
prefix forever. It's still limited to logs, of course, only the algo
is renamed in the config.
"log-balance" directive was recently introduced to configure the
balancing algorithm to use when in a log backend. However, it is
confusing and it causes issues when used in default section.
In this patch, we take another approach: first we remove the
"log-balance" directive, and instead we rely on existing "balance"
directive to configure log load balancing in log backend.
Some algorithms such as roundrobin can be used as-is in a log backend,
and for log-only algorithms, they are implemented as "log-$name" inside
the "backend" directive.
The documentation was updated accordingly.
This regtest declares and uses 3 log backends, one of which has TCP syslog
servers declared in it and other ones UDP syslog servers.
Some tests aims at testing log distribution reliability by leveraging the
log-balance hash algorithm with a key extracted from the request URL, and
the dummy vtest syslog servers ensure that messages are sent to the
correct endpoint. Overall this regtest covers essential parts of the log
message distribution and log-balancing logic involved with log backends.
It also leverages the log-forward section to perform the TCP->UDP
translation required to test UDP endpoints since vtest syslog servers
work in UDP mode.
Finally, we have some tests to ensure that the server queuing/dequeuing
and failover (backup) logics work properly.
It was previously reduced from 10s to 1s but it remains too high, espeically
for the CI. It may be drastically reduced to 100ms. Idea is to just be sure
we will wait for the response before evaluating the TCP rules.
Because of the previous fix, log/last_rule.vtc script is failing. The
inspect-delay is no longer shorten when the end of the message is
reached. Thus WAIT_END acl is trully respected. 10s is too high and hit the
Vtext timeout, making the script fails.
These two sample fetch methods report respectively the file name and the
line number where was located the last rule that was final. This is aimed
at being used on log-format lines to help admins figure what rule in the
configuration gave a final verdict, and help understand the condition
that led to the action.
For example, it's now possible to log the last matched rule by adding
this to the log-format:
... lr=%[last_rule_file]:%[last_rule_line]
A regtest is provided to test various combinations of final rules, some
even on top of each other from different rulesets.
With the CI occasionally slowing down, we're starting to see again some
spurious failures despite the long 1-second timeouts. This reports false
positives that are disturbing and doesn't provide as much value as this
could. However at this delay it already becomes a pain for developers
to wait for the tests to complete.
This commit adds support for the new environment variable
HAPROXY_TEST_TIMEOUT that will allow anyone to modify the connect,
client and server timeouts. It was set to 5 seconds by default, which
should be plenty for quite some time in the CI. All relevant values
that were 200ms or above were replaced by this one. A few larger
values were left as they are special. One test for the set-timeout
action that used to rely on a fixed 1-sec value was extended to a
fixed 5-sec, as the timeout is normally not reached, but it needs
to be known to compare the old and new values.
This patch adds a new logging variable '%HPO' for logging HTTP path only
(without query string) from relative or absolute URI.
For example:
log-format "hpo=%HPO hp=%HP hu=%HU hq=%HQ"
GET /r/1 HTTP/1.1
=>
hpo=/r/1 hp=/r/1 hu=/r/1 hq=
GET /r/2?q=2 HTTP/1.1
=>
hpo=/r/2 hp=/r/2 hu=/r/2?q=2 hq=?q=2
GET http://host/r/3 HTTP/1.1
=>
hpo=/r/3 hp=http://host/r/3 hu=http://host/r/3 hq=
GET http://host/r/4?q=4 HTTP/1.1
=>
hpo=/r/4 hp=http://host/r/4 hu=http://host/r/4?q=4 hq=?q=4
Its sole remaining purpose was to display "proxy foo started", which
has little benefit and pollutes output for those with plenty of proxies.
Let's remove it now.
The VTCs were updated to reflect this, because many of them had explicit
counts of dropped lines to match this message.
This is tagged as MEDIUM because some users may be surprized by the
loss of this quite old message.
In this reg test, as the client connection is not supposed to receive any
server response, we should try to "rxresp" but we should expect the client
connection to be closed by haproxy. This is done replacing "rxresp" by
"expect_close". Furthermore since dbb75ee3 vtest commit, calling "rxresp"
expects at least to receive a HTTP header as shown by Travis build
here: https://travis-ci.com/haproxy/haproxy/jobs/198126488.
Fix a wrong reg test file renaming which came with d7a8f14 commit
(REGTEST: rename the reg test files). This prevented
reg-tests/log/wrong_ip_port_logging.vtc with "bug" as reg test type
from being run.
This is a reg test for the log load-balancing feature implemented by
these commits:
MINOR: log: Add "sample" new keyword to "log" lines
MINOR: log: Enable the log sampling and load-balancing feature
The size of the logging buffer for vtest has been doubled to support this script.
This patch replaces LEVEL variable by REGTESTS_TYPES variable which is more
mnemonic and human readable. It is uses as a filter to run the reg tests scripts
where a commented #REGTEST_TYPE may be defined to designate their types.
Running the following command:
$ REGTESTS_TYPES=slow,default
will start all the reg tests where REGTEST_TYPE is defines as 'slow' or 'default'.
Note that 'default' is also the default value of REGTEST_TYPE when not specified
dedicated to run all the current h*.vtc files. When REGTESTS_TYPES is not specified
there is no filter at all. All the tests are run.
This patches also defines REGTEST_TYPE with 'slow' value for all the s*.vtc files,
'bug' value for al the b*.vtc files, 'broken' value for all the k*.vtc files.
To do so, the server does not send anything. Instead it waits 2ms before
closing. The client, on its side, will wait for a response. So it will be
blocked. Becauase the client timeout is set to 1ms, HAProxy should always close
the client connection because it times out.
Fix typos in comments and error messages of reg-tests. Note that this
has not been qualified as minor as it is used for testing purposes, not
end-users.
On my machine, test log/b00000.vtc fails ~9/10 times. Apparently, the
connection is often marked as reset before the timeout strikes, so the
log shows "CD" flags instead of "cD". This fix does two things :
1) shorten the client timeout to 1 millisecond instead of 5
2) accept both "cD" and "CD" as valid termination states since the
purpose is to validate the source address and port, and not the
status itself.
Add LEVEL #4 regression testing files which is dedicated to
VTC files in relation with bugs they help to reproduce.
At the date of this commit, all VTC files are LEVEL 4 VTC files.
