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https://dev.mysql.com/doc/refman/5.7/en/audit-log-elements.html
Tables in the mysql system database provide persistent storage of filter and user account data. A set of functions enables manipulation of filtering definitions that control logging behavior, the encryption password, and log file reading. System ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-error-reporter.html
Optionally, you can supply the name of a user that is able to access the cluster's data nodes using SSH, to copy the data node log files. ndb_error_reporter also accepts the options listed here: --connection-timeout=timeout Command-Line Format ...
https://dev.mysql.com/doc/refman/5.7/en/pluggable-storage.html
Plugging in a Storage Engine Before a storage engine can be used, the storage engine plugin shared library must be loaded into MySQL using the INSTALL PLUGIN statement. Ensure that there are no tables using a storage engine before you unplug the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-schema-views.html
The sys schema contains many views that summarize Performance Schema tables in various ways. The view with the x$ prefix that displays the same values in raw form is intended more for use with other tools that perform their own processing on the ...
https://dev.mysql.com/doc/refman/5.7/en/bug-reports.html
The normal way to report bugs is to visit http://bugs.mysql.com/, which is the address for our bugs database. Bugs posted in the bugs database at http://bugs.mysql.com/ that are corrected for a given release are noted in the release notes. To ...We ...
https://dev.mysql.com/doc/refman/5.7/en/optimize-blob.html
Since the performance requirements to retrieve and display a BLOB value might be very different from other data types, you could put the BLOB-specific table on a different storage device or even a separate database instance. For a table with several ... When storing a large blob containing textual data, consider compressing it ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-examples.html
Tune a query by writing it differently, Tune the database schema (tables, indexes, and so forth). The Performance Schema is a tool to help a DBA do performance tuning by taking real measurements instead of “wild guesses.” This section ...Then ...
https://dev.mysql.com/doc/refman/5.7/en/replication-solutions-switch.html
To use CHANGE MASTER TO, add all information about how to connect to Replica 1 from Replica 2 or Replica 3 (user, password, port). When this is true for all replicas, they can be reconfigured to the new setup. During this procedure, do not forget to ...The replica does not check whether the databases on the source are compatible with those on the replica; it simply begins reading and executing events from the specified coordinates in the new source's binary ...
https://dev.mysql.com/doc/refman/5.7/en/midpoint-insertion.html
By default, the key cache management system uses a simple LRU strategy for choosing key cache blocks to be evicted, but it also supports a more sophisticated method called the midpoint insertion strategy. key_cache_division_limit is a component of ...When using the midpoint insertion strategy, the LRU chain is divided into two parts: a hot sublist and a warm ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-differing-tables.html
This variable takes a set of values from the following table, which shows the effects of each mode on the replica's type-conversion behavior: Mode Effect ALL_LOSSY In this mode, type conversions that would mean loss of information are permitted. A ...