| Server IP : 172.67.216.182 / Your IP : 172.70.92.204 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 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 : ON Directory : /www/server/mysql/src/mysql-test/suite/sys_vars/r/ |
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select @@global.performance_schema_max_metadata_locks; @@global.performance_schema_max_metadata_locks 123 select @@session.performance_schema_max_metadata_locks; ERROR HY000: Variable 'performance_schema_max_metadata_locks' is a GLOBAL variable show global variables like 'performance_schema_max_metadata_locks'; Variable_name Value performance_schema_max_metadata_locks 123 show session variables like 'performance_schema_max_metadata_locks'; Variable_name Value performance_schema_max_metadata_locks 123 select * from information_schema.global_variables where variable_name='performance_schema_max_metadata_locks'; VARIABLE_NAME VARIABLE_VALUE PERFORMANCE_SCHEMA_MAX_METADATA_LOCKS 123 select * from information_schema.session_variables where variable_name='performance_schema_max_metadata_locks'; VARIABLE_NAME VARIABLE_VALUE PERFORMANCE_SCHEMA_MAX_METADATA_LOCKS 123 set global performance_schema_max_metadata_locks=1; ERROR HY000: Variable 'performance_schema_max_metadata_locks' is a read only variable set session performance_schema_max_metadata_locks=1; ERROR HY000: Variable 'performance_schema_max_metadata_locks' is a read only variable