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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-option-tables.html
ndb-wait-connected: Time (in seconds) for MySQL server to wait for connection to cluster management and data nodes before accepting MySQL client connections. ndb-wait-setup: Time (in seconds) for MySQL server to wait for NDB engine setup to complete. Ndb_api_wait_exec_complete_count: Number of times thread has been blocked while waiting for operation execution to complete by this MySQL Server (SQL ... The ...
https://dev.mysql.com/doc/refman/5.7/en/replication-administration-status.html
When the replication SQL thread has caught up on I/O, Seconds_Behind_Master displays 0; but when the replication I/O thread is still queuing up a new event, Seconds_Behind_Master may show a large value until the SQL thread finishes executing the new ... The most common task when managing a replication process is to ensure that replication is taking place and that there have been no errors between the replica and the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-io-global-by-wait-by-latency.html
max_latency The maximum single wait time of timed occurrences of the I/O event. These views summarize global I/O consumers to display amount of I/O and time waiting for I/O, grouped by event. total_latency The total wait time of timed occurrences ...The io_global_by_wait_by_latency and x$io_global_by_wait_by_latency views have these columns: event_name The I/O event name, with the wait/io/file/ prefix ...
https://dev.mysql.com/doc/refman/5.7/en/x-plugin-options-system-variables.html
mysqlx_connect_timeout Command-Line Format --mysqlx-connect-timeout=# Introduced 5.7.12 System Variable mysqlx_connect_timeout Scope Global Dynamic Yes Type Integer Default Value 30 Minimum Value 1 Maximum Value 1000000000 Unit seconds The number of ...If binding to the address fails, X Plugin produces an error and the server does not load ... To control activation of X Plugin, use this option: --mysqlx[=value] Command-Line Format --mysqlx[=value] Introduced 5.7.12 Type Enumeration Default Value ON Valid ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-restart-info.html
Each entry in the table corresponds to a node restart status report in real time from a data node with the given node ID. Only the most recent report for any given node is shown. The restart_info table contains the following columns: node_id Node ID ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-generated-columns.html
As of MySQL 5.7.10, if expression evaluation causes truncation or provides incorrect input to a function, the CREATE TABLE statement terminates with an error and the DDL operation is rejected. If a generated column is indexed, the optimizer ...
https://dev.mysql.com/doc/refman/5.7/en/events-overview.html
When you create an event, you are creating a named database object containing one or more SQL statements to be executed at one or more regular intervals, beginning and ending at a specific date and time. Whereas a trigger is a database object whose ...Scheduled tasks of this type are also sometimes known as “temporal triggers”, implying that these are objects that are triggered by the passage of ...
https://dev.mysql.com/doc/refman/5.7/en/enterprise-encryption-usage.html
OpenSSL also imposes a maximum key length of 10,000 bits and 16,384 bits for DSA and RSA keys, respectively, for create_asymmetric_priv_key(), and a maximum key length of 10,000 bits for create_dh_parameters(). If those maximum values are too high, ... To use MySQL Enterprise Encryption in applications, invoke the functions that are appropriate for the operations you wish to ...
https://dev.mysql.com/doc/refman/5.7/en/can-not-connect-to-server.html
If you get the error message Can't connect to MySQL server on some_host, you can try the following things to find out what the problem is: Check whether the server is running on that host by executing telnet some_host 3306 and pressing the Enter key ...After any port is closed it remains in TIME_WAIT status for 120 ...The error (2003) Can't connect to MySQL server on ... A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-object-filtering.html
The ENABLED column indicates whether matching objects are monitored, and TIMED indicates whether to collect timing information. Setting the TIMED column affects Performance Schema table contents as described in Section 25.4.1, “Performance Schema ... The setup_objects table controls whether the Performance Schema monitors particular table and stored program ...