mariadb/mysql-test/main/myisam_crash_before_flush_keys.test
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

47 lines
1.5 KiB
Text

--echo #
--echo # BUG#41330 - Myisam table open count set to zero before index blocks are written.
--echo #
--source include/not_embedded.inc
--echo # Don't test this under valgrind, memory leaks will occur
--source include/not_valgrind.inc
--echo # Binary must be compiled with debug for crash to occur
--source include/have_debug.inc
call mtr.add_suppression("Got an error from thread_id=.*ha_myisam.cc:");
call mtr.add_suppression("MySQL thread id .*, query id .* localhost.*root Checking table");
flush tables;
# Avoid CrashReporter popup on Mac
--source include/not_crashrep.inc
let $MYSQLD_DATADIR= `select @@datadir`;
SET GLOBAL delay_key_write=ALL;
CREATE TABLE t1(a INT,
b INT,
PRIMARY KEY(a , b),
KEY(b)) ENGINE=MyISAM DELAY_KEY_WRITE = 1;
INSERT INTO t1 VALUES (1,2),(2,3),(3,4),(4,5),(5,6);
--echo # Setup the mysqld to crash at certain point
SET SESSION debug_dbug="d,crash_before_flush_keys";
--echo # Write file to make mysql-test-run.pl expect crash
--write_line wait $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
--echo # Run the crashing query
--error 2013
FLUSH TABLE t1;
--echo # Write file to make mysql-test-run.pl start the server
--write_line restart $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
--echo # Turn on reconnect
--enable_reconnect
--echo # Call script that will poll the server waiting for
--echo # it to be back online again
--source include/wait_until_connected_again.inc
# Must report that the table wasn't closed properly
CHECK TABLE t1;
DROP TABLE t1;