I noticed that Travis-CI has been failing a lot since January 2018. When I wrote the blog post https://mariadb.org/protected-branches-ensuring-code-quality-git/ there was some sporadic failures, but not permanent failures.
Now when I used the commit 1730ac5c4ae1dc62f6fca5e751a8b08e9119be6a as a base and did 4 non-changing commits in a row just to see what results are sporadic or not, I got in each and every build the exactly same failures:
Failing test(s): main.type_datetime_hires main.select_pkeycache main.select main.select_jcl6 main.type_float main.func_str main.type_time_hires main.type_timestamp_hires
Logs:
https://api.travis-ci.org/v3/job/363800253/log.txt
https://api.travis-ci.org/v3/job/363781035/log.txt
https://api.travis-ci.org/v3/job/363685618/log.txt
https://api.travis-ci.org/v3/job/363592371/log.txt
These happen only in the build with
- Compiler: clang Xcode: xcode9.1 C++
- GCC_VERSION=5 TYPE=RelWithDebInfo MYSQL_TEST_SUITES=main,archive,optimizer_unfixed_bugs,parts,sys_vars,unit,vcol,innodb,innodb_gis,innodb_zip,innodb_fts
See screenshot
- is blocked by
-
MDEV-15430
type_float.test floating point error clang-4
-
-
Closed
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Major
All failures seem to be related to the same floating point being rounded/offset a bit. This is not visible on Buildbot as clang is not tested there.
The effect of a small floating point imprecision is not big per se, but the fact that this keeps Travis-CI failing permanently makes this a blocker. This MDEV should be closed either by fixing the issues themselves (
MDEV-15430, MDEV-14419) or by removing these individual tests or by disabling the specific clang build variant in the .travis.yml configuration.Travis-CI must be become green and kept all green!