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https://dev.mysql.com/doc/refman/8.0/en/lock-order-tool.html
(The alternative is to modify lock_order_dependencies.txt itself, which is not encouraged.) If this variable is not set, no secondary file is used. The MySQL server is a multithreaded application that uses numerous internal locking and lock-related ...
https://dev.mysql.com/doc/refman/8.0/en/logical-operators.html
Table 14.5 Logical Operators Name Description AND, && Logical AND NOT, ! Negates value OR, || Logical OR XOR Logical XOR In SQL, all logical operators evaluate to TRUE, FALSE, or NULL (UNKNOWN). In MySQL, these are implemented as 1 (TRUE), 0 ...
https://dev.mysql.com/doc/refman/8.0/en/midpoint-insertion.html
When an index block is read from a table into the key cache, it is placed at the end of the warm sublist. By default, the key cache management system uses a simple LRU strategy for choosing key cache blocks to be evicted, but it also supports a ...
https://dev.mysql.com/doc/refman/8.0/en/monitoring-performance-schema.html
You can query the tables in the performance_schema database to see real-time information about the performance characteristics of your server and the applications it is running.
https://dev.mysql.com/doc/refman/8.0/en/multiple-data-directories.html
Even when the preceding precautions are observed, this kind of setup works only with MyISAM and MERGE tables, and not with any of the other storage engines. Each MySQL Instance on a machine should have its own data directory. There are different ...
https://dev.mysql.com/doc/refman/8.0/en/multiple-windows-command-line-servers.html
Use this procedure: Make sure that each data directory exists, including its own copy of the mysql database that contains the grant tables. The procedure for starting a single MySQL server manually from the command line is described in Section ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-backup-parallel-data-nodes.html
If you are using large Disk Data tables, you may also need to increase DiskPageBufferMemory. It is possible in NDB 8.0 to take a backup with multiple local data managers (LDMs) acting in parallel on the data nodes. For this to work, all data nodes ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-debian.html
The directory layout is the same as that for the generic Linux binary distribution (see Table 2.3, “MySQL Installation Layout for Generic Unix/Linux Binary Package”), with the exception that startup scripts and configuration files are found in ... The section provides information about installing NDB Cluster on Debian and related Linux distributions such Ubuntu using the .deb files supplied by Oracle for this ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-windows-initial-start.html
Once the NDB Cluster executables and needed configuration files are in place, performing an initial start of the cluster is simply a matter of starting the NDB Cluster executables for all nodes in the cluster. See Section 25.3.5, “NDB Cluster ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-installation.html
Alternatively, you can use the hosts file (typically /etc/hosts for Linux and other Unix-like operating systems, C:\WINDOWS\system32\drivers\etc\hosts on Windows, or your operating system's equivalent) for providing a means to do host lookup if such ... This section describes the basics for planning, installing, configuring, and running an NDB ...