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https://dev.mysql.com/doc/refman/8.0/en/myisam-crash-recovery.html
In this case, myisamchk does not abort on some errors (such as duplicate-key errors) but instead tries to resolve them by modifying the .MYD file. This section describes how to check for and deal with data corruption in MySQL databases. If your ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-repair.html
Note If you want a repair operation to go much faster, you should set the values of the sort_buffer_size and key_buffer_size variables each to about 25% of your available memory when running myisamchk. The discussion in this section describes how ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-linux-source.html
Building NDB Cluster from source is similar to building the standard MySQL Server, although it differs in a few key respects discussed here. This section provides information about compiling NDB Cluster on Linux and other Unix-like platforms. For ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-limitations-performance.html
Unique hash indexes created with USING HASH cannot be used for accessing a table if NULL is given as part of the key. The following performance issues are specific to or especially pronounced in NDB Cluster: Range scans. There are query performance ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo.html
row *************************** Engine: InnoDB Support: DEFAULT Comment: Supports transactions, row-level locking, and foreign keys Transactions: YES XA: YES Savepoints: YES *************************** 4. ndbinfo is a database containing ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-params-other.html
ShmKey: Shared memory key; when set to 1, this is calculated by NDB. The listings in this section provide information about parameters used in the [computer], [tcp], and [shm] sections of a config.ini file for configuring NDB Cluster. For detailed ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndbmtd.html
Using ndbmtd differs from using ndbd in two key respects: Because ndbmtd runs by default in single-threaded mode (that is, it behaves like ndbd), you must configure it to use multiple threads. ndbmtd is a multithreaded version of ndbd, the process ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-shm-definition.html
ShmKey Version (or later) NDB 8.0.13 Type or units unsigned Default 0 Range 0 - 4294967039 (0xFFFFFEFF) Restart Type Node Restart: Requires a rolling restart of the cluster. If UseShm is enabled, the shared memory key is calculated automatically by ... Communications between NDB cluster nodes are normally handled using ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-tde-limitations.html
Rotation of all data encryption keys requires an initial node restart. Transparent data encryption in NDB Cluster is subject to the following restrictions and limitations: The file system password must be supplied to each individual data node. File ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-commands.html
The -S option to less can make the result set much more readable because you can scroll it horizontally using the left-arrow and right-arrow keys. mysql sends each SQL statement that you issue to the server to be executed. There is also a set of ...