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https://dev.mysql.com/doc/connector-j/en/connector-j-support-bug-report.html
The most common errors made in bug reports are (a) not including the version number of Connector/J or MySQL used, and (b) not fully describing the platform on which Connector/J is installed (including the JVM version, and the platform type and ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-29.html
Version 8.0.29 is the latest General Availability release of the 8.0 series of MySQL Connector/J. It supports the Java Database Connectivity (JDBC) 4.2 API, and implements the X DevAPI. Therefore, Connector/J has added utf8mb3 to its character set ...It is suitable for use with MySQL Server versions 8.0 and ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-2-0.html
Version 8.2.0 is a new GA release of MySQL Connector/J. MySQL Connector/J 8.2.0 supersedes 8.1 and is recommended for use on production systems. It supports the Java Database Connectivity (JDBC) 4.2 API, and implements the X DevAPI. Functionality ...This release can be used against MySQL Server version 5.7 and ...
https://dev.mysql.com/doc/refman/9.7/en/binary-log-transaction-compression.html
You can enable connection compression at the protocol level for replication connections, using the SOURCE_COMPRESSION_ALGORITHMS and SOURCE_ZSTD_COMPRESSION_LEVEL options of the CHANGE REPLICATION SOURCE TO statement, or the ... MySQL supports ...
https://dev.mysql.com/doc/refman/9.7/en/docker-mysql-more-topics.html
For example: docker run --name=mysql1 --network=my-custom-net -d container-registry.oracle.com/mysql/community-server docker run --name=myapp1 --network=my-custom-net -d myapp The myapp1 container can then connect to the mysql1 container with the ...
https://dev.mysql.com/doc/refman/9.7/en/explain.html
When EXPLAIN is used with FOR CONNECTION connection_id rather than an explainable statement, it displays the execution plan for the statement executing in the named connection. See Section 10.8.4, “Obtaining Execution Plan Information for a Named ...In practice, the DESCRIBE keyword is more often used to obtain information about table structure, whereas EXPLAIN is used to obtain a query execution plan (that is, an explanation of how MySQL would execute a ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-mysql-cluster.html
Do I need any special networking to run NDB Cluster? How do computers in a cluster communicate? NDB Cluster is intended to be used in a high-bandwidth environment, with computers connecting using TCP/IP. Its performance depends directly upon the ...
https://dev.mysql.com/doc/refman/9.7/en/grant.html
(Alternatively, if you have the UPDATE privilege for the grant tables in the mysql system schema, you can grant any account any privilege.) When the read_only system variable is enabled, GRANT additionally requires the CONNECTION_ADMIN privilege (or ...[WITH GRANT OPTION] [AS user [WITH ROLE DEFAULT | NONE | ALL | ALL EXCEPT role [, role ] ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-basics.html
An SQL node is a mysqld process started with the --ndbcluster and --ndb-connectstring options, which are explained elsewhere in this chapter, possibly with additional MySQL server options as well. MySQL clients using an NDB Cluster as a data source ... NDBCLUSTER (also known as NDB) is an in-memory storage engine offering high-availability and data-persistence ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-logs-cluster-log.html
Table 25.25 Common NDB cluster log messages Log Message Description Event Name Event Type Priority Severity Node mgm_node_id: Node data_node_id Connected The data node having node ID node_id has connected to the management server (node mgm_node_id).