mirror of
https://github.com/MariaDB/server.git
synced 2025-08-01 03:47:19 +03:00
bead24b7f3
Remove one of the major sources of race condiitons in mariadb-test. Normally, mariadb_close() sends COM_QUIT to the server and immediately disconnects. In mariadb-test it means the test can switch to another connection and sends queries to the server before the server even started parsing the COM_QUIT packet and these queries can see the connection as fully active, as it didn't reach dispatch_command yet. This is a major source of instability in tests and many - but not all, still less than a half - tests employ workarounds. The correct one is a pair count_sessions.inc/wait_until_count_sessions.inc. Also very popular was wait_until_disconnected.inc, which was completely useless, because it verifies that the connection is closed, and after disconnect it always is, it didn't verify whether the server processed COM_QUIT. Sadly the placebo was as widely used as the real thing. Let's fix this by making mariadb-test `disconnect` command _to wait_ for the server to confirm. This makes almost all workarounds redundant. In some cases count_sessions.inc/wait_until_count_sessions.inc is still needed, though, as only `disconnect` command is changed: * after external tools, like `exec $MYSQL` * after failed `connect` command * replication, after `STOP SLAVE` * Federated/CONNECT/SPIDER/etc after `DROP TABLE` and also in some XA tests, because an XA transaction is dissociated from the THD very late, after the server has closed the client connection. Collateral cleanups: fix comments, remove some redundant statements: * DROP IF EXISTS if nothing is known to exist * DROP table/view before DROP DATABASE * REVOKE privileges before DROP USER etc
123 lines
3.1 KiB
Plaintext
123 lines
3.1 KiB
Plaintext
--source include/have_debug.inc
|
|
|
|
SET @old_debug = @@GLOBAL.debug_dbug;
|
|
|
|
#
|
|
# Bug#34678 @@debug_dbug variable's incremental mode
|
|
#
|
|
|
|
SET debug_dbug= 'T';
|
|
select @@debug_dbug;
|
|
SET debug_dbug= '+P';
|
|
select @@debug_dbug;
|
|
SET debug_dbug= '-P';
|
|
select @@debug_dbug;
|
|
|
|
#
|
|
# Bug#38054: "SET SESSION debug" modifies @@global.debug_dbug variable
|
|
#
|
|
|
|
SELECT @@session.debug_dbug, @@global.debug_dbug;
|
|
|
|
SET SESSION debug_dbug= '';
|
|
|
|
SELECT @@session.debug_dbug, @@global.debug_dbug;
|
|
|
|
--echo #
|
|
--echo # Bug #52629: memory leak from sys_var_thd_dbug in
|
|
--echo # binlog.binlog_write_error
|
|
--echo #
|
|
|
|
SET GLOBAL debug_dbug='d,injecting_fault_writing';
|
|
SELECT @@global.debug_dbug;
|
|
SET GLOBAL debug_dbug='';
|
|
SELECT @@global.debug_dbug;
|
|
|
|
SET GLOBAL debug_dbug=@old_debug;
|
|
|
|
--echo #
|
|
--echo # Bug #56709: Memory leaks at running the 5.1 test suite
|
|
--echo #
|
|
|
|
SET @old_local_debug = @@debug_dbug;
|
|
|
|
SET @@debug_dbug='d,foo';
|
|
SELECT @@debug_dbug;
|
|
SET @@debug_dbug='';
|
|
SELECT @@debug_dbug;
|
|
|
|
SET @@debug_dbug= @old_local_debug;
|
|
|
|
--echo End of 5.1 tests
|
|
|
|
|
|
--echo #
|
|
--echo # Bug#46165 server crash in dbug
|
|
--echo #
|
|
|
|
SET @old_globaldebug = @@global.debug_dbug;
|
|
SET @old_sessiondebug= @@session.debug_dbug;
|
|
|
|
--echo # Test 1 - Bug test case, single connection
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
eval SET GLOBAL debug_dbug= '+O,$MYSQL_TMP_DIR/bug46165.1.trace';
|
|
SET SESSION debug_dbug= '-d:-t:-i';
|
|
|
|
SET GLOBAL debug_dbug= '';
|
|
SET SESSION debug_dbug= '';
|
|
|
|
--echo # Test 2 - Bug test case, two connections
|
|
connection default;
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
eval SET GLOBAL debug_dbug= '+O,$MYSQL_TMP_DIR/bug46165.2.trace';
|
|
SET SESSION debug_dbug= '-d:-t:-i';
|
|
|
|
connect (con1, localhost, root);
|
|
SET GLOBAL debug_dbug= '';
|
|
|
|
connection default;
|
|
SET SESSION debug_dbug= '';
|
|
disconnect con1;
|
|
connection default;
|
|
SET GLOBAL debug_dbug= '';
|
|
|
|
--echo # Test 3 - Active session trace file on disconnect
|
|
connect (con1, localhost, root);
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
eval SET GLOBAL debug_dbug= '+O,$MYSQL_TMP_DIR/bug46165.3.trace';
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
SELECT @@global.debug_dbug, @@session.debug_dbug;
|
|
SET SESSION debug_dbug= '+T';
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
SELECT @@global.debug_dbug, @@session.debug_dbug;
|
|
SET GLOBAL debug_dbug= '';
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
SELECT @@global.debug_dbug, @@session.debug_dbug;
|
|
disconnect con1;
|
|
|
|
--echo # Test 4 - Active session trace file on two connections
|
|
connection default;
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
eval SET GLOBAL debug_dbug= '+O,$MYSQL_TMP_DIR/bug46165.4.trace';
|
|
SET SESSION debug_dbug= '-d:-t:-i';
|
|
|
|
connect (con1, localhost, root);
|
|
SET SESSION debug_dbug= '-d:-t:-i';
|
|
SET GLOBAL debug_dbug= '';
|
|
SET SESSION debug_dbug= '';
|
|
|
|
connection default;
|
|
SET SESSION debug_dbug= '';
|
|
disconnect con1;
|
|
connection default;
|
|
|
|
--echo # Test 5 - Different trace files
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
eval SET SESSION debug_dbug= '+O,$MYSQL_TMP_DIR/bug46165.5.trace';
|
|
--replace_result $MYSQL_TMP_DIR MYSQL_TMP_DIR
|
|
eval SET SESSION debug_dbug= '+O,$MYSQL_TMP_DIR/bug46165.6.trace';
|
|
SET SESSION debug_dbug= '-O';
|
|
|
|
SET GLOBAL debug_dbug= @old_globaldebug;
|
|
SET SESSION debug_dbug= @old_sessiondebug;
|