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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-processes.html
Only nodes that are connected to the cluster are shown in this table. You can obtain information about nodes that are configured but not connected to the cluster from the nodes and config_nodes tables. For other types of API nodes, it is the name of ... 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-server-transactions.html
The server_transactions table is subset of the cluster_transactions table, but includes only those transactions in which the current SQL node (MySQL Server) is a participant, while including the relevant connection IDs. (Currently, the MySQL Server ...Together with the block name, this number can be used to look up a given instance in the threadblocks ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-size-pl.html
This is a Perl script that can be used to estimate the amount of space that would be required by a MySQL database if it were converted to use the NDBCLUSTER storage engine. Unlike the other utilities discussed in this section, it does not require ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-upgrade-downgrade.html
(Once any possibility of a downgrade is past, you can safely change the corresponding system variable ndb_schema_dist_upgrade_allowed back to 1, the default, in the mysql client.) When each NDB Y SQL node starts, it connects to the cluster and ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-enterprise-audit.html
MySQL Enterprise Audit uses the open MySQL Audit API to enable standard, policy-based monitoring and logging of connection and query activity executed on specific MySQL servers. The log contents include when clients connect and disconnect, and what ... MySQL Enterprise Edition includes MySQL Enterprise Audit, implemented using a server ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-enterprise-thread-pool.html
The default thread-handling model in MySQL Server executes statements using one thread per client connection. As more clients connect to the server and execute statements, overall performance degrades. The plugin implements a thread pool that ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-error-summary-tables.html
For summary tables aggregated by account, host, or user, truncation removes rows for accounts, hosts, or users with no connections, and resets the summary columns to zero or NULL for the remaining rows. In addition, each error summary table that is ... The Performance Schema maintains summary tables for aggregating statistical information about server errors (and ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-processlist-table.html
This is the same value displayed in the Id column of the SHOW PROCESSLIST statement, displayed in the PROCESSLIST_ID column of the Performance Schema threads table, and returned by the CONNECTION_ID() function within the thread. unauthenticated user ... The MySQL process list indicates the operations currently being performed by the set of threads executing within the ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-stage-summary-tables.html
For summary tables aggregated by account, host, or user, truncation removes rows for accounts, hosts, or users with no connections, and resets the summary columns to zero for the remaining rows. In addition, each stage summary table that is ... The ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-statement-summary-tables.html
For other summary tables aggregated by account, host, or user, truncation removes rows for accounts, hosts, or users with no connections, and resets the summary columns to zero for the remaining rows. In addition, each statement summary table that ... The Performance Schema maintains tables for collecting current and recent statement events, and aggregates that information in summary ...