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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndb-api-statistics.html
On platforms without sufficient (nanosecond) time resolution, small changes in the value of the WaitNanosCount NDB API counter due to SQL statements that execute very quickly may not always be visible in the values of ...Table 21.61 NDB API ... A ...
https://dev.mysql.com/doc/refman/5.7/en/replication-solutions-partitioning.html
For example, to support the separation as shown in Figure 16.2, “Replicating Databases to Separate Replicas”, you should configure each replica as follows, before executing START SLAVE: Replica 1 should use --replicate-wild-do-table=databaseA.%.
https://dev.mysql.com/doc/refman/5.7/en/system-schema.html
Time Zone System Tables These system tables contain time zone information: time_zone: Time zone IDs and whether they use leap seconds. For more information, see Section 5.1.13, “MySQL Server Time Zone Support”. Replication System Tables The ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-installer-workflow.html
This includes defining custom file paths for the error log, general log, slow query log (including the configuration of seconds it requires to execute a query), and the binary log. The Logging Options step enables you to define custom file paths for ...Otherwise, the process stops and displays an error message if an individual action times ...Unlike the initial setup, which ...
https://dev.mysql.com/doc/refman/5.7/en/stored-objects.html
This chapter discusses stored database objects that are defined in terms of SQL code that is stored on the server for later execution. Metadata changes to objects referred to by stored programs are detected and cause automatic reparsing of the ...
https://dev.mysql.com/doc/refman/5.7/en/replication-semisync-interface.html
rpl_semi_sync_master_timeout A value in milliseconds that controls how long the source waits on a commit for acknowledgment from a replica before timing out and reverting to asynchronous replication. It is 0 if the plugin is not enabled or the ...
https://dev.mysql.com/doc/refman/5.7/en/gone-away.html
The most common reason for the MySQL server has gone away error is that the server timed out and closed the connection. You can check whether the MySQL server died and restarted by executing mysqladmin version and examining the server's uptime. By ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-show-tables.html
--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving up. --connect-retry-delay Command-Line Format --connect-retry-delay=# Type ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations-performance.html
If necessary, you can employ USE INDEX or FORCE INDEX to alter the execution plan. 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 ...
https://dev.mysql.com/doc/refman/5.7/en/charset-configuration.html
The MySQL server has a compiled-in default character set and collation. To change these defaults, use the --character-set-server and --collation-server options when you start the server. The collation must be a legal collation for the default ...