Details
Description
perl ./mtr main.1st main.1st --force --mysqld=--xx
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10.2 80075ba0 |
$ perl ./mtr main.1st main.1st --force --mysqld=--xx
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Logging: ./mtr main.1st main.1st --force --mysqld=--xx
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vardir: /data/bld/10.2-debug/mysql-test/var
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Checking leftover processes...
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Removing old var directory...
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- WARNING: Using the 'mysql-test/var' symlink
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Creating var directory '/data/bld/10.2-debug/mysql-test/var'...
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Checking supported features...
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MariaDB Version 10.2.34-MariaDB-debug
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- SSL connections supported
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- binaries are debug compiled
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- binaries built with wsrep patch
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Collecting tests...
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Installing system database...
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==============================================================================
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TEST RESULT TIME (ms) or COMMENT
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--------------------------------------------------------------------------
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worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019
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worker[1] mysql-test-run: WARNING: Process [mysqld.1 - pid: 142300, winpid: 142300, exit: 512] died after mysql-test-run waited 0.2 seconds for /data/bld/10.2-debug/mysql-test/var/run/mysqld.1.pid to be created.
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main.1st [ fail ]
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Test ended at 2020-09-20 15:43:11
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CURRENT_TEST: main.1st
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Failed to start mysqld.1
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mysqltest failed but provided no output
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- saving '/data/bld/10.2-debug/mysql-test/var/log/main.1st/' to '/data/bld/10.2-debug/mysql-test/var/log/main.1st/'
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***Warnings generated in error logs during shutdown after running tests: main.1st
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2020-09-20 15:43:11 139634223757120 [ERROR] /data/bld/10.2-debug/bin/mysqld: unknown option '--xx'
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2020-09-20 15:43:11 139634223757120 [ERROR] Aborting
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worker[1] mysql-test-run: WARNING: Process [mysqld.1 - pid: 142306, winpid: 142306, exit: 512] died after mysql-test-run waited 0.2 seconds for /data/bld/10.2-debug/mysql-test/var/run/mysqld.1.pid to be created.
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main.1st [ fail ]
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Test ended at 2020-09-20 15:43:11
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CURRENT_TEST: main.1st
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CURRENT_TEST: main.1st
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Failed to start mysqld.1
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- saving '/data/bld/10.2-debug/mysql-test/var/log/main.1st/' to '/data/bld/10.2-debug/mysql-test/var/log/main.1st/'
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***Warnings generated in error logs during shutdown after running tests: main.1st
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2020-09-20 15:43:11 140377120438080 [ERROR] /data/bld/10.2-debug/bin/mysqld: unknown option '--xx'
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2020-09-20 15:43:11 140377120438080 [ERROR] Aborting
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Note that at the end there is no normal output saying X out of Y tests failed etc.
Neither the specific test nor the specific option are important for reproducing the problem. The common factor seems to be that there should be at least two tests which fail and also have warnings/errors in the server error log which are caught and not ignored by the warning check; and one of such tests should be the last one executed.
for example, if I create a test t.test like this
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t.test |
set a= 1;
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(a simple test which will fail because a is an unknown identifier), and then run MTR like this:
perl ./mtr main.t main.t --force --mysqld=--lock-wait-timeout=-1
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I get the problem described above:
==============================================================================
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TEST RESULT TIME (ms) or COMMENT
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--------------------------------------------------------------------------
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worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019
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set a= 1;
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main.t [ fail ]
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Test ended at 2020-09-20 15:50:58
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CURRENT_TEST: main.t
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mysqltest: At line 1: query 'set a= 1' failed: 1193: Unknown system variable 'a'
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- saving '/data/bld/10.2-debug/mysql-test/var/log/main.t/' to '/data/bld/10.2-debug/mysql-test/var/log/main.t/'
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***Warnings generated in error logs during shutdown after running tests: main.t
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2020-09-20 15:50:58 140006505084736 [Warning] option 'lock_wait_timeout': unsigned value 18446744073709551615 adjusted to 31536000
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set a= 1;
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main.t [ fail ]
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Test ended at 2020-09-20 15:50:58
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CURRENT_TEST: main.t
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mysqltest: At line 1: query 'set a= 1' failed: 1193: Unknown system variable 'a'
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- saving '/data/bld/10.2-debug/mysql-test/var/log/main.t/' to '/data/bld/10.2-debug/mysql-test/var/log/main.t/'
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***Warnings generated in error logs during shutdown after running tests: main.t
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2020-09-20 15:50:58 139746030774080 [Warning] option 'lock_wait_timeout': unsigned value 18446744073709551615 adjusted to 31536000
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Same happens even if there is a "good" test in between, so the failing ones don't have to be consequent:
perl ./mtr main.t main.1st main.t --force --mysqld=--lock-wait-timeout=-1 --noreorder
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But if we run it in a different order, as
perl ./mtr main.t main.t main.1st --force --mysqld=--lock-wait-timeout=-1 --noreorder
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then the summary is printed:
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main.1st [ fail ] Found warnings/errors in server log file!
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Test ended at 2020-09-20 15:53:34
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line
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2020-09-20 15:53:34 140296160270144 [Warning] option 'lock_wait_timeout': unsigned value 18446744073709551615 adjusted to 31536000
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^ Found warnings in /data/bld/10.2-debug/mysql-test/var/log/mysqld.1.err
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ok
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- saving '/data/bld/10.2-debug/mysql-test/var/log/main.1st/' to '/data/bld/10.2-debug/mysql-test/var/log/main.1st/'
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--------------------------------------------------------------------------
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The servers were restarted 2 times
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Spent 0.000 of 4 seconds executing testcases
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mysql-test-run: WARNING: Got errors/warnings while running tests, please examine '/data/bld/10.2-debug/mysql-test/var/log/warnings' for details.
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Completed: Failed 3/3 tests, 0.00% were successful.
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Failing test(s): main.t main.1st
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The log files in var/log may give you some hint of what went wrong.
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If you want to report this error, please read first the documentation
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at http://dev.mysql.com/doc/mysql/en/mysql-test-suite.html
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Errors/warnings were found in logfiles during server shutdown after running the
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following sequence(s) of tests:
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main.t
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main.t
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mysql-test-run: *** ERROR: there were failing test cases
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Same if we run the tests in the same "bad" order, but without inducing warnings in the log:
perl ./mtr main.t main.1st main.t --force --noreorder
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...
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Test ended at 2020-09-20 15:54:48
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CURRENT_TEST: main.t
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mysqltest: At line 1: query 'set a= 1' failed: 1193: Unknown system variable 'a'
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- saving '/data/bld/10.2-debug/mysql-test/var/log/main.t/' to '/data/bld/10.2-debug/mysql-test/var/log/main.t/'
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--------------------------------------------------------------------------
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The servers were restarted 1 times
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Spent 0.002 of 4 seconds executing testcases
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Completed: Failed 2/3 tests, 33.33% were successful.
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Failing test(s): main.t
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The log files in var/log may give you some hint of what went wrong.
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If you want to report this error, please read first the documentation
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at http://dev.mysql.com/doc/mysql/en/mysql-test-suite.html
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mysql-test-run: *** ERROR: there were failing test cases
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etc.
According to my preliminary look, there is something wrong with the main loop in mysql-test-run.pl, in the subroutine run_test_server, in case it encounters line of the type WARNINGS. The following one-liner helped me to avoid the problem on my side:
diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
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index f28034e77c1..ce32a97ec75 100755
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--- a/mysql-test/mysql-test-run.pl
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+++ b/mysql-test/mysql-test-run.pl
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@@ -778,6 +778,7 @@ sub run_test_server ($$$) {
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# Test failure due to warnings, force is off
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return ("Warnings in log", 1, $completed, $extra_warnings);
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}
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+ redo;
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}
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elsif ($line =~ /^SPENT/) {
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add_total_times($line);
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I don't believe it can be the whole fix, and not at all sure it's even a right change; it is just to give the idea where to start looking from. The logic is quite messy and seems error-prone, so it needs to be fully analyzed before making any changes.
Attachments
Issue Links
- relates to
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MDEV-22631 some test causes MTR interruption without generating summary and XML
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- Closed
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MDEV-23650 test S3 in buildbot
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- Closed
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