| Server IP : 185.86.78.101 / Your IP : 216.73.216.213 Web Server : Apache System : Linux 675867-vds-valikoshka1996.gmhost.pp.ua 5.4.0-150-generic #167-Ubuntu SMP Mon May 15 17:35:05 UTC 2023 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : OFF Directory : /www/server/mysql/mysql-test/r/ |
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# Save the initial number of concurrent sessions # Establish connection con1 (user=root) # Establish connection con2 (user=root) # Establish connection con3 (user=root) # Switch to connection con1 DROP TABLE IF EXISTS t1; CREATE TABLE t1 (a INT) ENGINE=innodb; BEGIN; INSERT INTO t1 VALUES(1); # Switch to connection con2 FLUSH TABLES WITH READ LOCK; # Switch to connection con1 # Sending: COMMIT; # Switch to connection con2 # Wait until COMMIT gets blocked. # Verify that 'con1' was blocked and data did not move. SELECT * FROM t1; a UNLOCK TABLES; # Switch to connection con1 # Reaping COMMIT # Switch to connection con1 BEGIN; SELECT * FROM t1 FOR UPDATE; a 1 # Switch to connection con2 BEGIN; SELECT * FROM t1 FOR UPDATE; # Switch to connection con3 FLUSH TABLES WITH READ LOCK; # Switch to connection con1 COMMIT; # Switch to connection con2 a 1 COMMIT; # Switch to connection con3 UNLOCK TABLES; # Switch to connection con2 COMMIT; # Switch to connection con1 BEGIN; INSERT INTO t1 VALUES(10); FLUSH TABLES WITH READ LOCK; # Switch to connection con2 FLUSH TABLES WITH READ LOCK; UNLOCK TABLES; BEGIN; SELECT * FROM t1; a 1 10 SHOW CREATE DATABASE test; Database Create Database test CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET latin1 */ COMMIT; # Cleanup # Switch to connection default and close connections con1, con2, con3 # We commit open transactions when we disconnect: only then we can # drop the table. DROP TABLE t1; # End of 4.1 tests # Wait till all disconnects are completed