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https://dev.mysql.com/doc/refman/5.7/en/source-thread-states.html
The following list shows the most common states you may see in the State column for the Binlog Dump thread of the replication source. If you see no Binlog Dump threads on a source, this means that replication is not running; that is, that no ...
https://dev.mysql.com/doc/refman/5.7/en/storage-engines.html
The value in the Support column indicates whether an engine can be used. Storage engines are MySQL components that handle the SQL operations for different table types. InnoDB is the default and most general-purpose storage engine, and Oracle ...
https://dev.mysql.com/doc/refman/5.7/en/sys-create-synonym-db.html
Given a schema name, this procedure creates a synonym schema containing views that refer to all the tables and views in the original schema. This can be used, for example, to create a shorter name by which to refer to a schema with a long name ...
https://dev.mysql.com/doc/refman/5.7/en/sys-innodb-buffer-stats-by-schema.html
The innodb_buffer_stats_by_schema and x$innodb_buffer_stats_by_schema views have these columns: object_schema The schema name for the object, or InnoDB System if the table belongs to the InnoDB storage engine. These views summarize the information ...
https://dev.mysql.com/doc/refman/5.7/en/sys-innodb-buffer-stats-by-table.html
The innodb_buffer_stats_by_table and x$innodb_buffer_stats_by_table views have these columns: object_schema The schema name for the object, or InnoDB System if the table belongs to the InnoDB storage engine. These views summarize the information in ...
https://dev.mysql.com/doc/refman/5.7/en/sys-io-by-thread-by-latency.html
The io_by_thread_by_latency and x$io_by_thread_by_latency views have these columns: user For foreground threads, the account associated with the thread. These views summarize I/O consumers to display time waiting for I/O, grouped by thread.
https://dev.mysql.com/doc/refman/5.7/en/sys-io-global-by-file-by-bytes.html
The io_global_by_file_by_bytes and x$io_global_by_file_by_bytes views have these columns: file The file path name. These views summarize global I/O consumers to display amount of I/O, grouped by file. By default, rows are sorted by descending total ...
https://dev.mysql.com/doc/refman/5.7/en/sys-io-global-by-file-by-latency.html
The io_global_by_file_by_latency and x$io_global_by_file_by_latency views have these columns: file The file path name. These views summarize global I/O consumers to display time waiting for I/O, grouped by file. total_latency The total wait time of ...
https://dev.mysql.com/doc/refman/5.7/en/sys-io-global-by-wait-by-bytes.html
The io_global_by_wait_by_bytes and x$io_global_by_wait_by_bytes views have these columns: event_name The I/O event name, with the wait/io/file/ prefix stripped. These views summarize global I/O consumers to display amount of I/O and time waiting ...
https://dev.mysql.com/doc/refman/5.7/en/sys-io-global-by-wait-by-latency.html
The io_global_by_wait_by_latency and x$io_global_by_wait_by_latency views have these columns: event_name The I/O event name, with the wait/io/file/ prefix stripped. These views summarize global I/O consumers to display amount of I/O and time ...