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https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-examples-compression-sect.html
Example 17.1 Using the Compression Information Schema Tables The following is sample output from a database that contains compressed tables (see Section 17.9, “InnoDB Table and Page Compression”, INNODB_CMP, INNODB_CMP_PER_INDEX, and ...The ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-tables.html
This section covers topics related to InnoDB tables. ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-tablespace.html
This section covers topics related to InnoDB tablespaces. ...
https://dev.mysql.com/doc/refman/8.0/en/sys-innodb-lock-waits.html
These views summarize the InnoDB locks that transactions are waiting for. The innodb_lock_waits and x$innodb_lock_waits views have these columns: wait_started The time at which the lock wait started. wait_age How long the lock has been waited for, ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-dml.html
In the following SQL examples, t1 refers to the table used for memcached operations, based on the configuration in the innodb_memcache.containers table. Benchmarks suggest that the daemon_memcached plugin speeds up DML operations (inserts, updates, ...INSERT becomes add, UPDATE becomes set, incr or decr, and DELETE becomes ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-options-variables.html
In addition, if --ndb-nodeid is used, then either a matching node ID must be found in a [mysqld] or [api] section of config.ini, or there must be an “open” [mysqld] or [api] section in the file (that is, a section without a NodeId or Id ...For ...For general information on using these, and for other options and variables not specific to NDB Cluster, see Section 7.1, “The MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/using-systemd.html
In other cases, the error log directory must be writable or the error log must be present and writable for the user running the mysqld process. This script assists in creating the error log file only if the log location matches a pattern ...One ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-logging-configuration.html
Adding Query Statistics for Outlier Detection In MySQL 8.0.30 and later, you can extend log files in JSON format with optional data fields to show the query time, the number of bytes sent and received, the number of rows returned to the client, and ... This section describes how to configure audit logging characteristics, such as the file to which the audit log plugin writes events, the format of written events, whether to enable log file compression and encryption, and space ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-command-options.html
It specifies the directory in which files named in LOAD DATA LOCAL statements must be located. When --load-data-local-dir applies, the option value designates the directory in which local data files must be located. If the file does not exist or is ... mysql supports the following options, which can be specified on the command line or in the [mysql] and [client] groups of an option ...
https://dev.mysql.com/doc/refman/8.0/en/security-against-attack.html
This includes the server's data directory containing the files that implement the privilege tables. Encryption helps to protect these files and the potentially sensitive data contained in them from being misused by outside attackers, and also from ...Make sure that the only Unix user account with read or write privileges in the database directories is the account that is used for running ...