mariadb/mysql-test/include/shutdown_mysqld.inc
Vladislav Vaintroub 061adae9a2 MDEV-16944 Fix file sharing issues on Windows in mysqltest
On Windows systems, occurrences of ERROR_SHARING_VIOLATION due to
conflicting share modes between processes accessing the same file can
result in CreateFile failures.

mysys' my_open() already incorporates a workaround by implementing
wait/retry logic on Windows.

But this does not help if files are opened using shell redirection like
mysqltest traditionally did it, i.e via

--echo exec "some text" > output_file

In such cases, it is cmd.exe, that opens the output_file, and it
won't do any sharing-violation retries.

This commit addresses the issue by introducing a new built-in command,
'write_line', in mysqltest. This new command serves as a brief alternative
to 'write_file', with a single line output, that also resolves variables
like "exec" would.

Internally, this command will use my_open(), and therefore retry-on-error
logic.

Hopefully this will eliminate the very sporadic "can't open file because
it is used by another process" error on CI.
2024-04-17 16:52:37 +02:00

49 lines
1.4 KiB
PHP

# ==== Usage ====
#
# [--let $shutdown_timeout= 60]
# [--let $allow_rpl_inited= 1]
# --source include/shutdown_mysqld.inc
# The default value is empty
--let $server_shutdown_timeout=
if ($shutdown_timeout)
{
--let $server_shutdown_timeout= $shutdown_timeout
}
# This is the first half of include/restart_mysqld.inc.
if ($rpl_inited)
{
if (!$allow_rpl_inited)
{
--die ERROR IN TEST: When using the replication test framework (master-slave.inc, rpl_init.inc etc), use rpl_restart_server.inc instead of restart_mysqld.inc. If you know what you are doing and you really have to use restart_mysqld.inc, set allow_rpl_inited=1 before you source restart_mysqld.inc
}
}
# Write file to make mysql-test-run.pl expect the "crash", but don't start it
--let $_expect_file_name= `select regexp_replace(@@tmpdir, '^.*/','')`
--let $_expect_file_name= $MYSQLTEST_VARDIR/tmp/$_expect_file_name.expect
--write_line wait $_expect_file_name
# Avoid warnings from connection threads that does not have time to exit
--disable_query_log
set @@global.log_warnings=0;
--enable_query_log
--source include/slow_environ.inc
--let $server_shutdown_timeout= 60$_timeout_adjustment
if ($shutdown_timeout)
{
--let $server_shutdown_timeout= $shutdown_timeout
}
if ($shutdown_timeout == 0)
{
--let $server_shutdown_timeout= 0
}
# Send shutdown to the connected server
--shutdown_server $server_shutdown_timeout
--source include/wait_until_disconnected.inc