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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-setup-actors-table.html
Modifications to the setup_actors table affect only foreground threads created subsequent to the modification, not existing threads. The setup_actors table contains information that determines whether to enable monitoring and historical event ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-startup-configuration.html
It is possible that a plugin installed later may create the instrument, at which time the name is recognized and configured. To use the MySQL Performance Schema, it must be enabled at server startup to enable event collection to occur. To enable or ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-thread-filtering.html
Modifications to the setup_actors table affect only foreground threads created subsequent to the modification, not existing threads. The threads table contains a row for each server thread. Each row contains information about a thread and indicates ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-thread-pool-tables.html
If the thread pool plugin is loaded but disabled, the tables are not created. Note The Performance Schema tables described here are available as of MySQL 8.0.14. Prior to MySQL 8.0.14, use the corresponding INFORMATION_SCHEMA tables instead; see ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-tp-thread-group-state-table.html
This is where most threads end up when the thread group has created more threads than needed for normal operation. Note The Performance Schema table described here is available as of MySQL 8.0.14. Prior to MySQL 8.0.14, use the corresponding ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-tp-thread-group-stats-table.html
WAKE_THREAD_STALL_CHECKER The number of times the stall check thread decided to wake or create a thread to possibly handle some statements or take care of the waiter thread role. Note The Performance Schema table described here is available as of ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-tp-thread-state-table.html
The tp_thread_state table has one row per thread created by the thread pool to handle connections. Note The Performance Schema table described here is available as of MySQL 8.0.14. Prior to MySQL 8.0.14, use the corresponding INFORMATION_SCHEMA ...
https://dev.mysql.com/doc/refman/8.0/en/perl-installation.html
For example, to unpack and build a DBI distribution, use a procedure such as this: Unpack the distribution into the current directory: $> gunzip < DBI-VERSION.tar.gz | tar xvf - This command creates a directory named DBI-VERSION. MySQL Perl support ...
https://dev.mysql.com/doc/refman/8.0/en/perror.html
perror displays the error message for MySQL or operating system error codes. For example, for the ER_WRONG_VALUE_FOR_VAR error, perror understands any of these arguments: 1231, 001231, MY-1231, or MY-001231, or ER_WRONG_VALUE_FOR_VAR. The meaning ...
https://dev.mysql.com/doc/refman/8.0/en/point-in-time-recovery-binlog.html
By default, the server creates binary log files in the data directory, but a path name can be specified with the --log-bin option to place the files in a different location. This section explains the general idea of using the binary log to perform ...