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https://dev.mysql.com/doc/refman/5.7/en/mysql-config-editor.html
The mysql_config_editor utility enables you to store authentication credentials in an obfuscated login path file named .mylogin.cnf. The file location is the %APPDATA%\MySQL directory on Windows and the current user's home directory on non-Windows ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-page-compression.html
InnoDB supports page-level compression for tables that reside in file-per-table tablespaces. Page compression is enabled by specifying the COMPRESSION attribute with CREATE TABLE or ALTER TABLE. Supported Platforms Page compression requires sparse ...
https://dev.mysql.com/doc/refman/5.7/en/dbug-package.html
The MySQL server and most MySQL clients are compiled with the DBUG package originally created by Fred Fish. When you have configured MySQL for debugging, this package makes it possible to get a trace file of what the program is doing. This section ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-applier-status-by-coordinator-table.html
For a multithreaded replica, the replica uses multiple worker threads and a coordinator thread to manage them, and this table shows the status of the coordinator thread. For a multithreaded replica, the replication_applier_status_by_worker table ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-connection-status-table.html
This table shows the current status of the replication I/O thread that handles the replica's connection to the source. It contains values that change during the connection, whereas replication_connection_configuration contains values which define ...
https://dev.mysql.com/doc/refman/5.7/en/replication-mode-change-online-disable-gtids.html
This section describes how to disable GTID transactions on servers that are already online. This procedure does not require taking the server offline and is suited to use in production. However, if you have the possibility to take the servers ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations-transactions.html
A number of limitations exist in NDB Cluster with regard to the handling of transactions. The NDBCLUSTER storage engine supports only the READ COMMITTED transaction isolation level. To ensure that a given transaction reads only before or after ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-tables.html
At this time, there are no active replica threads, so the THREAD_ID columns are NULL and the SERVICE_STATE columns have a value of OFF. After STOP SLAVE, the THREAD_ID columns become NULL and the SERVICE_STATE columns for threads that no longer ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-consistent-read.html
A consistent read means that InnoDB uses multi-versioning to present to a query a snapshot of the database at a point in time. The query sees the changes made by transactions that committed before that point in time, and no changes made by later or ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-undo-tablespaces.html
The purge system empties rollback segments by freeing undo logs that are no longer in use. Undo tablespaces contain undo logs, which are collections of records containing information about how to undo the latest change by a transaction to a ...