Search Results
https://dev.mysql.com/doc/refman/8.4/en/group-replication-monitoring.html
Other events are logged only on the member where they take place, such as super read only mode being enabled or disabled on the member, or the member leaving the group. You can use the MySQL Performance Schema to monitor Group Replication. These ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-performance-xcom-cache-reduce.html
If a reconnecting member cannot retrieve all the messages it needs from the XCom message cache, the member must leave the group and rejoin it, in order to retrieve the missing transactions from another member's binary log using distributed recovery.
https://dev.mysql.com/doc/refman/8.4/en/group-replication-performance.html
If a member server instance leaves voluntarily or stops communicating with the group, the remaining members agree a reconfiguration of the group between themselves, and choose a new primary if needed. Group Replication is designed to create ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-requirements.html
In particular, if this server is being set up as an instance in MySQL group replication, you should leave this variable set to its default value (ON). Infrastructure Server Instance Configuration Server instances that you want to use for Group ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-responses-failure-partition.html
By default, members that find themselves in a minority due to a network partition do not automatically leave the group. You can use the system variable group_replication_unreachable_majority_timeout to set a number of seconds for a member to wait ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-restarting-group.html
However, if every member of a replication group leaves the group, and Group Replication is stopped on every member by a STOP GROUP_REPLICATION statement or system shutdown, the group now only exists in theory, as a configuration on the members.
https://dev.mysql.com/doc/refman/8.4/en/group-replication-single-primary-mode.html
The member that is designated as the primary server can change in the following ways: If the existing primary leaves the group, whether voluntarily or unexpectedly, a new primary is elected automatically. In single-primary mode ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-understanding-consistency-guarantees.html
For Group Replication, the control operations that can be evaluated in terms of consistency are: a member joining or leaving, which is covered by Group Replication's Section 20.5.4, “Distributed Recovery” and write protection. In terms of ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-use-cases.html
They are tracked by a group membership service which relies on a distributed failure detector that is able to signal when any servers leave the group, either voluntarily or due to an unexpected halt. Group Replication enables you to create ...
https://dev.mysql.com/doc/refman/8.4/en/index-page-merge-threshold.html
Merging pages at a lower page-full percentage leaves more room in index pages and helps reduce merge-split behavior. If the “page-full” percentage for an index page falls below the MERGE_THRESHOLD value when a row is deleted or when a row is ...