82 lines
2.1 KiB
Plaintext
82 lines
2.1 KiB
Plaintext
SET @global_saved_tmp = @@global.offline_mode;
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SET @user_count= 1;
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CREATE USER 'user1'@'localhost';
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CREATE USER 'user2'@'localhost';
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CREATE USER 'user3'@'localhost';
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connect conu1,localhost,user1;
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connect conu2,localhost,user2;
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connect conu3,localhost,user3;
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SET GLOBAL offline_mode = ON;
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ERROR 42000: Access denied; you need (at least one of) the SUPER or SYSTEM_VARIABLES_ADMIN privilege(s) for this operation
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connection default;
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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5
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 4
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SET GLOBAL offline_mode = ON;
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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2
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 1
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error ER_SERVER_OFFLINE_MODE
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connection conu1;
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connection default;
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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2
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 1
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SET GLOBAL offline_mode = OFF;
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connect conu4,localhost,root;
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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3
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 2
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connection default;
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SET GLOBAL offline_mode = OFF;
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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3
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 2
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disconnect conu1;
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disconnect conu2;
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disconnect conu3;
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connect conu1,localhost,user1;
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connect conu2,localhost,user2;
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connect conu3,localhost,user3;
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connection default;
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SELECT @user_count;
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@user_count
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1
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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6
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 5
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SET GLOBAL offline_mode = ON;
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SELECT COUNT(USER) FROM INFORMATION_SCHEMA.PROCESSLIST;
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COUNT(USER)
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3
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SHOW STATUS LIKE 'threads_connected';
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Variable_name Value
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Threads_connected 2
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disconnect conu1;
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disconnect conu2;
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disconnect conu3;
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disconnect conu4;
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DROP USER 'user1'@'localhost';
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DROP USER 'user2'@'localhost';
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DROP USER 'user3'@'localhost';
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# Restoring the original values.
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SET @@global.offline_mode = @global_saved_tmp;
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