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https://dev.mysql.com/doc/internals/en/semi-sync-replication.html
The clients COMMIT (or in auto-commit mode the current statement) waits until _one_ slave acknowledged that it received (not neccesarilly executed) the transaction or a timeout is reached. In MySQL 5.5 replication can optionally be made ...
https://dev.mysql.com/doc/refman/8.4/en/check-table.html
To avoid timeouts, the semaphore wait threshold (600 seconds) is extended by 2 hours (7200 seconds) for CHECK TABLE operations. To avoid the possibility of a semaphore wait timeout entirely, run CHECK TABLE QUICK instead of CHECK TABLE. option: { ...
https://dev.mysql.com/doc/refman/8.4/en/clone-plugin-failure-handling.html
If the cloning operation is unable to obtain a DDL lock within the time limit specified by the clone_ddl_timeout variable, an error is reported. If a network error occurs during a cloning operation, the operation resumes if the error is resolved ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-configuring-consistency-guarantees.html
Transactions whose consistency level is not EVENTUAL hold execution until a timeout, configured by wait_timeout value is reached, which defaults to 8 hours. A transaction cannot be on-hold forever, and if the time held exceeds wait_timeout it ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-responses-failure-rejoin.html
The group_replication_autorejoin_tries system variable makes a member that has been expelled or reached its unreachable majority timeout try to rejoin the group automatically. With auto-rejoin, when the member's expulsion or unreachable majority ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-transaction-inconsistencies.html
After this timeout, the coordinator gives up and aborts the transaction. After this timeout, it aborts the transaction, so it may be left half-completed. The global setting for the system variable rpl_stop_replica_timeout is unrelated to the process ... Inconsistencies in the sequence of transactions that have been executed from the relay log can occur depending on your replication ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/backup-capacity-options.html
--lock-wait-timeout Command-Line Format --lock-wait-timeout=S Type Numeric Default Value 60 Minimum Value 1 Unit second The option is no longer supported. These options limit the resources used by the backup process, in order to minimize backup ...
https://dev.mysql.com/doc/connectors/en/connector-j-named-pipe.html
Important Minimal permissions on named pipes are granted to clients that use them to connect to the server. Connector/J, however, can only use named pipes when granted full access on them. As a workaround, the MySQL Server that Connector/J wants to ...If you do not use a namedPipePath property, the default of '\\.\pipe\MySQL' is ...
https://dev.mysql.com/doc/connectors/en/connector-j-usagenotes-spring-config-connpooling.html
When this is the case, it usually makes sense to create a pool of database connections available for web requests as needed. Although MySQL does not spawn an extra process when a connection is made, there is still a small amount of overhead to ...
Connectors and APIs Manual :: 3.5.12.4 Connecting Using Web Authentication (WebAuthn) Authentication
https://dev.mysql.com/doc/connectors/en/connector-j-WebAuthn-authentication.html
It is supported by MySQL Enterprise Edition and Connector/J since release 8.2.0—see WebAuthn Pluggable Authentication for details. In either case, issue the following command (additional command options to connect to the right server might be ...