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https://dev.mysql.com/doc/refman/9.7/en/myisamchk.html
The myisamchk utility gets information about your database tables or checks, repairs, or optimizes them. myisamchk works with MyISAM tables (tables that have .MYD and .MYI files for storing data and indexes). You can also use the CHECK TABLE and ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-limitations-performance.html
The following performance issues are specific to or especially pronounced in NDB Cluster: Range scans. There are query performance issues due to sequential access to the NDB storage engine; it is also relatively more expensive to do many range ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-limitations-unsupported.html
A number of features supported by other storage engines are not supported for NDB tables. Trying to use any of these features in NDB Cluster does not cause errors in or of itself; however, errors may occur in applications that expects the features ...
https://dev.mysql.com/doc/refman/9.7/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/9.7/en/mysql-cluster-ndbinfo-files.html
The files table is empty if no disk data objects have been created in NDB. See Section 25.6.11.1, “NDB Cluster Disk Data Objects”, for more information.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-memory-per-fragment.html
memory_per_fragment Table: Notes memory_per_fragment Table: Examples The memory_per_fragment table provides information about the usage of memory by individual fragments. See the Notes later in this section to see how you can use this to find out ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-processes.html
This table contains information about NDB Cluster node processes; each node is represented by the row in the table. Only nodes that are connected to the cluster are shown in this table. You can obtain information about nodes that are configured but ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-top.html
ndb_top displays running information in the terminal about CPU usage by NDB threads on an NDB Cluster data node. Each thread is represented by two rows in the output, the first showing system statistics, the second showing the measured statistics ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-waiter.html
ndb_waiter repeatedly (each 100 milliseconds) prints out the status of all cluster data nodes until either the cluster reaches a given status or the --timeout limit is exceeded, then exits. By default, it waits for the cluster to achieve STARTED ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ps-tables.html
NDB provides information in the MySQL Performance Schema about ndbcluster plugin threads and instrumenting for transaction batch memory. These features are described in greater detail in the sections which follow. Thread names are shown in the name ...