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https://dev.mysql.com/doc/refman/8.0/en/myisampack.html
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 rows, because you only have to uncompress exactly one row. MySQL uses mmap() ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-example-data.html
Note The information in this section applies to NDB Cluster running on both Unix and Windows platforms. Working with database tables and data in NDB Cluster is not much different from doing so in standard MySQL. There are two key points to keep in ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-innodb-engines.html
The NDB storage engine is implemented using a distributed, shared-nothing architecture, which causes it to behave differently from InnoDB in a number of ways. For those unaccustomed to working with NDB, unexpected behaviors can arise due to its ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-cluster-operations.html
The cluster_operations table provides a per-operation (stateful primary key op) view of all activity in the NDB Cluster from the point of view of the local data management (LQH) blocks (see The DBLQH Block). (Currently, the MySQL Server does not ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-operations-per-fragment.html
Note When using tot_key_writes, you should keep in mind that a write operation in this context updates the row if the key exists, and inserts a new row otherwise. The operations_per_fragment table provides information about the operations performed ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-processes.html
The processes table contains the following columns: node_id The node's unique node ID in the cluster node_type Type of node (management, data, or API node; see text) node_version Version of the NDB software program running on this node. process_id ... This table contains information about NDB Cluster node processes; each node is represented by the row in the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-restart-info.html
The restart_info table contains the following columns: node_id Node ID in the cluster node_restart_status Node status; see text for values. Each entry in the table corresponds to a node restart status report in real time from a data node with the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-server-operations.html
The server_operations table contains entries for all ongoing NDB operations that the current SQL node (MySQL Server) is currently involved in. It effectively is a subset of the cluster_operations table, in which operations for other SQL and API ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-example.html
Open the cluster global configuration file in a text editor and add [ndbd] sections corresponding to the 2 new data nodes. In this section we provide a detailed example illustrating how to add new NDB Cluster data nodes online, starting with an NDB ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-error-reporter.html
ndb_error_reporter creates an archive from data node and management node log files that can be used to help diagnose bugs or other problems with a cluster. It is highly recommended that you make use of this utility when filing reports of bugs in ...