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https://dev.mysql.com/doc/refman/8.4/en/geometry-well-formedness-validity.html
Spatial import functions that parse WKT or WKB values raise an error for attempts to create a geometry that is not syntactically well-formed. Spatial computations may detect some cases of invalid geometries and raise an error, but they may also ...
https://dev.mysql.com/doc/refman/8.4/en/gis-format-conversion-functions.html
If any geometry argument is not a syntactically well-formed geometry, an ER_GIS_INVALID_DATA error occurs. If the options argument is invalid, an error occurs to indicate why. MySQL supports the functions listed in this section for converting ...
https://dev.mysql.com/doc/refman/8.4/en/gis-geometrycollection-property-functions.html
If any geometry argument is not a syntactically well-formed geometry, an ER_GIS_INVALID_DATA error occurs. If any geometry argument is a syntactically well-formed geometry in an undefined spatial reference system (SRS), an ER_SRS_NOT_FOUND error ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-functions-for-member-actions.html
When the feature is active and correctly configured, if the primary that is replicating goes offline or into an error state, the new primary starts replication on the same channel when it is elected. If the primary goes offline or into an error ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-ip-address-permissions.html
A host name that cannot be resolved is not considered for allowlist validation, and a warning message is written to the error log. When and only when the XCom communication stack is used for establishing group communications ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-monitoring.html
Messages relating to Group Replication lifecycle events other than errors are classified as system messages; these are always written to the replication group member' error log. You can use the MySQL Performance Schema to monitor Group Replication.
https://dev.mysql.com/doc/refman/8.4/en/group-replication-network-partitioning.html
A member with extra transactions cannot rejoin the group, and the attempt results in an error with the message This member has more executed transactions than those present in the group. A member with extra transactions cannot rejoin the group, and ... The group needs to achieve consensus whenever a change that needs to be replicated ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-performance.html
Some key issues that can require administrator intervention are when a member is in ERROR status and cannot rejoin the group, or when a network partition causes the group to lose quorum. If an otherwise correctly functioning and configured member is ... Group Replication is designed to create fault-tolerant systems with built-in failure detection and automated ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-responses-failure-rejoin.html
During and between auto-rejoin attempts, a member remains in super read only mode and displays an ERROR state on its view of the replication group. While a member is rejoining a replication group, its status can be displayed as OFFLINE or ERROR ...
https://dev.mysql.com/doc/refman/8.4/en/gtid-functions.html
timeout must be greater than or equal to 0; when running in strict SQL mode, a negative timeout value is immediately rejected with an error (ER_WRONG_ARGUMENTS); otherwise the function returns NULL, and raises a warning. The functions described in ...