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https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-failure-handling.html
From MySQL 8.0.24, the Clone idle timeout is set to the default wait_timeout setting, which is 28800 seconds (8 hours). This section describes failure handing at different stages of a cloning operation. If a failure occurs during the prerequisite ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-options-variables.html
This section describes the system variables that control operation of the clone plugin. If values specified at startup are incorrect, the clone plugin may fail to initialize properly and the server does not load it. In this case, the server may ...
https://dev.mysql.com/doc/refman/8.0/en/data-dictionary-information-schema.html
In particular, for each INFORMATION_SCHEMA table that is a view on data dictionary tables: The server no longer must create a temporary table for each query of the INFORMATION_SCHEMA table. When the underlying data dictionary tables store values ...
https://dev.mysql.com/doc/refman/8.0/en/data-dictionary-usage-differences.html
Use of a data dictionary-enabled MySQL server entails some operational differences compared to a server that does not have a data dictionary: Previously, enabling the innodb_read_only system variable prevented creating and dropping tables only for ...
https://dev.mysql.com/doc/refman/8.0/en/gone-away.html
By default, the server closes the connection after eight hours if nothing has happened. This section also covers the related Lost connection to server during query error. The most common reason for the MySQL server has gone away error is that the ...
https://dev.mysql.com/doc/refman/8.0/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. Although the Transaction Synchronization Points section explains that conceptually there ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-frequently-asked-questions.html
You can set a waiting period of up to 1 hour. What is the maximum number of MySQL servers in a group? A group can consist of maximum 9 servers. Attempting to add another server to a group with 9 members causes the request to join to be refused. This ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-limitations.html
You can allow up to an hour after the initial 5-second detection period before a suspect member is expelled from the group. Limit on Group Size Limits on Transaction Size The following known limitations exist for Group Replication. Note that the ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance-message-fragmentation.html
You can also use the system variable group_replication_member_expel_timeout to allow additional time (up to an hour) before a member under suspicion of having failed is expelled from the group. When an abnormally large message is sent between Group ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance-xcom-cache.html
The length of this time period is controlled by the group_replication_member_expel_timeout system variable, which determines the waiting period (up to an hour) that is allowed in addition to the initial 5-second detection period for members to ...