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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-mgm-client-commands.html
The number of nodes in the list must be the same as the number of nodes in each node group that is already part of the cluster (each NDB Cluster node group must have the same number of nodes). In other words, if the NDB Cluster consists of 2 node ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-api-statistics.html
Ndb_api_uk_op_count_session Ndb_api_uk_op_count_slave [none] Ndb_api_uk_op_count TableScanCount Number of table scans that have been started. Ndb_api_table_scan_count_session Ndb_api_table_scan_count_slave [none] Ndb_api_table_scan_count ... A ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndbd.html
Important This option does not affect backup files that have already been created by the affected node. It is permissible to use this option when starting the cluster for the very first time (that is, before any data node files have been created); ... The ndbd binary provides the single-threaded version of the process that is used to handle all the data in tables employing the NDBCLUSTER storage ...
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. Except for trace files, these are generated in the same ... ndbmtd is a multithreaded version of ndbd, the process that is used to handle all the data in tables using the NDBCLUSTER storage ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-replication-failover.html
We have employed a user variable @latest here to represent the value obtained in Step 1. 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 ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-replication-issues.html
For this reason, it is highly recommended that all NDB tables being replicated have explicit primary keys. This issue is solved for replication between NDB tables by deferring unique key checks until after all table row updates have been performed.
https://dev.mysql.com/doc/refman/8.0/en/mysql-command-options.html
Otherwise, you can press Tab again to see the possible names that begin with what you have typed so far. When --quick is specified, mysql does not have the rows for which to calculate the length before starting, and so uses the maximum length. If ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-upgrade.html
Each time you upgrade MySQL, you should execute mysql_upgrade, which looks for incompatibilities with the upgraded MySQL server: It upgrades the system tables in the mysql schema so that you can take advantage of new privileges or capabilities that ... Note As of MySQL 8.0.16, the MySQL server performs the upgrade tasks previously handled by mysql_upgrade (for details, see Section 3.4, “What the MySQL Upgrade Process ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlimport.html
Command-Line Format --fields-terminated-by=string Type String Command-Line Format --fields-enclosed-by=string Type String Command-Line Format --fields-optionally-enclosed-by=string Type String Command-Line Format --fields-escaped-by Type String ...
https://dev.mysql.com/doc/refman/8.0/en/optimize-overview.html
Database performance depends on several factors at the database level, such as tables, queries, and configuration settings. These software constructs result in CPU and I/O operations at the hardware level, which you must minimize and make as ...