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https://dev.mysql.com/doc/refman/8.0/en/replication-features-user-names.html
The maximum length for user names in MySQL 8.0 is 32 characters. Replication of user names longer than 16 characters fails when the replica runs a version of MySQL previous to 5.7, because those versions support only shorter user names. This occurs ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-views.html
Views are filtered by their own name, not by the tables they refer to. This means that a view can be replicated to the replica even if the view contains a table that would normally be filtered out by replication-ignore-table rules. Care should ...
https://dev.mysql.com/doc/refman/8.0/en/replication-notes.html
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https://dev.mysql.com/doc/refman/8.0/en/select-benchmarking.html
To measure the speed of a specific MySQL expression or function, invoke the BENCHMARK() function using the mysql client program. The return value is always zero, but mysql prints a line displaying approximately how long the statement took to ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-redundant-indexes.html
The schema_redundant_indexes view displays indexes that duplicate other indexes or are made redundant by them. In the following column descriptions, the dominant index is the one that makes the redundant index redundant. The ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-tablespace-autoextend-size.html
By default, when a file-per-table or general tablespace requires additional space, the tablespace is extended incrementally according to the following rules: If the tablespace is less than an extent in size, it is extended one page at a time. If ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-cpustat.html
The cpustat table provides per-thread CPU statistics gathered each second, for each thread running in the NDB kernel.
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-instrumentation-checking.html
This information is always up to date for your version of MySQL, also includes instrumentation for instrumented plugins you might have installed that are not part of the core server, and can be used by automated tools. It is always possible to ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-performance-xcom-cache-increase.html
If a member is absent for a period that is not long enough for it to be expelled from the group, it can reconnect and start participating in the group again by retrieving missed transactions from another member's XCom message cache. In this ...
https://dev.mysql.com/doc/refman/8.0/en/ipv6-system-support.html
As a simple test to determine whether that is true, try this command: $> ping6 ::1 16 bytes from ::1, icmp_seq=0 hlim=64 time=0.171 ms 16 bytes from ::1, icmp_seq=1 hlim=64 time=0.077 ms ... To produce a description of your system's network ...