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https://dev.mysql.com/doc/refman/5.7/en/memory-storage-engine.html
The MEMORY storage engine (formerly known as HEAP) creates special-purpose tables with contents that are stored in memory. Because the data is vulnerable to crashes, hardware issues, or power outages, only use these tables as temporary work areas ...
https://dev.mysql.com/doc/refman/5.7/en/myisam-storage-engine.html
MyISAM is based on the older (and no longer available) ISAM storage engine but has many useful extensions. Table 15.2 MyISAM Storage Engine Features Feature Support B-tree indexes Yes Backup/point-in-time recovery (Implemented in the server, rather ...
https://dev.mysql.com/doc/refman/5.7/en/myisampack.html
MySQL release binaries provided by Oracle are not built using this option. When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when accessing individual ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-config-file.html
Configuring NDB Cluster requires working with two files: my.cnf: Specifies options for all NDB Cluster executables. This file, with which you should be familiar with from previous work with MySQL, must be accessible by each executable running in ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-install-debian.html
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 purpose. For NDB Cluster 7.5.6 and later, Oracle also provides an APT repository ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-mysqld.html
To be used with NDB Cluster, mysqld needs to be built with support for the NDB storage engine, as it is in the precompiled binaries available from https://dev.mysql.com/downloads/. If you build MySQL from source, you must invoke CMake with the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndb-api-statistics.html
A number of types of statistical counters relating to actions performed by or affecting Ndb objects are available. Such actions include starting and closing (or aborting) transactions; primary key and unique key operations; table, range, and pruned ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbd-definition.html
[ndbd] and [ndbd default] are always used as the section names whether you are using ndbd or ndbmtd binaries for the data node processes. The [ndbd] and [ndbd default] sections are used to configure the behavior of the cluster's data nodes. There ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-online-add-node-example.html
In this section we provide a detailed example illustrating how to add new NDB Cluster data nodes online, starting with an NDB Cluster having 2 data nodes in a single node group and concluding with a cluster having 4 data nodes in 2 node groups.
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-replication-failover.html
In the event that the primary Cluster replication process fails, it is possible to switch over to the secondary replication channel. This means that the ndb_apply_status table contains information for the replica on this host as well as for any ...