https://dev.mysql.com/mysql-cluster-programs-ndbmtd.html
If the is the first time this node has failed, then these files are named ndb_3_trace.log.1_t1, ndb_3_trace.log.1_t2, ndb_3_trace.log.1_t3, and ndb_3_trace.log.1_t4. However, such configurations have not been tested extensively; thus, we cannot ...
https://dev.mysql.com/mysql-cluster-replication.html
For information about performing point-in-time recovery with NDB Cluster and NDB Cluster Replication, see Section 22.6.9.2, “Point-In-Time Recovery Using NDB Cluster Replication”. NDB Cluster supports asynchronous replication, more usually ...
https://dev.mysql.com/mysql-stmt-bind-result.html
A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect the next time mysql_stmt_fetch() is called. bool mysql_stmt_bind_result(MYSQL_STMT *stmt, MYSQL_BIND *bind) ...
https://dev.mysql.com/mysql-stmt-execute.html
If you execute a statement multiple times, mysql_stmt_execute() closes any open cursor before opening a new one. int mysql_stmt_execute(MYSQL_STMT *stmt) mysql_stmt_execute() executes the prepared query associated with the statement handler. The ...
https://dev.mysql.com/ndb-restore-parallel-data-node-backup.html
Beginning with NDB Cluster 8.0.16, it is possible to take parallel backups on each data node using ndbmtd with multiple LDMs (see Section 22.5.3.5, “Taking an NDB Backup with Parallel Data Nodes”). The next two sections describe how to restore ...
https://dev.mysql.com/optimizer-statistics.html
The table is persistent so that column statistics need not be created each time the server starts. The value is one of int, uint (unsigned integer), double, decimal, datetime, or string (includes character and binary strings). On the other hand, the ... The column_statistics data dictionary table stores histogram statistics about column values, for use by the optimizer in constructing query execution ...
https://dev.mysql.com/optimizing-innodb-logging.html
Although historically big redo log files caused lengthy recovery times, recovery is now much faster and you can confidently use large redo log files. innodb_log_wait_for_flush_spin_hwm: Defines the maximum average log flush time beyond which user ...
https://dev.mysql.com/optimizing-innodb-many-tables.html
If you have configured non-persistent optimizer statistics (a non-default configuration), InnoDB computes index cardinality values for a table the first time that table is accessed after startup, instead of storing such values in the table. This ...
https://dev.mysql.com/optimizing-innodb-transaction-management.html
For example, an application might encounter performance issues if it commits thousands of times per second, and different performance issues if it commits only every 2-3 hours. If a big transaction is slowing down server performance, rolling it back ... To optimize InnoDB transaction processing, find the ideal balance between the performance overhead of transactional features and the workload of your ...
https://dev.mysql.com/order-by-optimization.html
Increase the read_rnd_buffer_size variable value so that more rows are read at a time. For example: "filesort_summary": { "rows": 100, "examined_rows": 100, "number_of_tmp_files": 0, "peak_memory_used": 25192, "sort_mode": "<sort_key, ... This ...
