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https://dev.mysql.com/doc/ndbapi/en/ndb-examples-scanning-basic.html
This example makes use of the following classes and methods: Ndb_cluster_connection: connect() wait_until_ready() Ndb: init() getDictionary() startTransaction() closeTransaction() NdbTransaction: getNdbScanOperation() execute() NdbOperation: ...
https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-24.html
In the case of a killed connection, the warning notice is sent to the relevant client with the ER_SESSION_WAS_KILLED error code, unless the connection was killed during SQL execution, in which case a fatal error is returned with the ...If any of ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-host-cache-table.html
The SUM_CONNECT_ERRORS value can exceed the max_connect_errors value because multiple connection attempts from a host can occur simultaneously while the host is not blocked. COUNT_HOST_BLOCKED_ERRORS The number of connections that were blocked ...
https://dev.mysql.com/doc/connectors/en/connector-j-reference-jdbc-url-format.html
Limit the overrides to user, password, network timeouts, and statement and metadata cache sizes; the effects of other per-host overrides are not defined. This section explains the syntax of the URLs for connecting to MySQL. This is the generic ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-restore.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/8.4/en/performance-schema-statement-digests.html
These columns store sample statement information: QUERY_SAMPLE_TEXT (the text of the statement), QUERY_SAMPLE_SEEN (when the statement was seen), and QUERY_SAMPLE_TIMER_WAIT (the statement wait or execution time). Normalization permits statements ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-tcp-definition.html
(NDB 8.4.0) By default, when a management node fails to resolve a host name while trying to connect, this results in a fatal error. (NDB 8.4.0) If this parameter and Checksum are both enabled, perform pre-send checksum checks, and check all TCP ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-mysqlserver-ddlstatementactivity-category.html
Table 6.5 DDL Statement Activity Metrics NameDescriptionAlter DB (Delta) The total number of ALTER DATABASE statements executed. Alter Event (Delta) The total number of ALTER EVENT statements executed. Alter Function (Delta) The total number of ...
https://dev.mysql.com/doc/refman/8.4/en/x-plugin-status-variables.html
Mysqlx_sessions_fatal_error The number of sessions that have closed with a fatal error. Mysqlx_aborted_clients The number of clients that were disconnected because of an input or output error. Mysqlx_cursor_close The number of cursor-close messages ...Mysqlx_address The network address or addresses for which X Plugin accepts TCP/IP ...
https://dev.mysql.com/doc/relnotes/connector-python/en/news-8-1-0.html
Closing a connection multiple times could cause a fatal deallocation error in Connector/Python 8.0.33. (Bug #110879, Bug #35349093) An error was raised when setting the database name on a connection that included non-alphanumeric characters. (Bug ...