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https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-metrics-table.html
The INNODB_METRICS table provides a wide variety of InnoDB performance information, complementing the specific focus areas of the Performance Schema tables for InnoDB. Each monitor represents a point within the InnoDB source code that is ...With ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-indexes-table.html
The INNODB_SYS_INDEXES table provides metadata about InnoDB indexes, equivalent to the information in the internal SYS_INDEXES table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, “InnoDB ...Index ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-tables-table.html
The INNODB_SYS_TABLES table provides metadata about InnoDB tables, equivalent to the information from the SYS_TABLES table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, “InnoDB INFORMATION_SCHEMA ...NAME The name of the table, preceded by the schema (database) name where appropriate (for example, ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-tablestats-table.html
The INNODB_SYS_TABLESTATS table provides a view of low-level status information about InnoDB tables. This data is used by the MySQL optimizer to calculate which index to use when querying an InnoDB table. InnoDB tables are represented in this view ...This information is derived from in-memory data structures rather than data stored on ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-redo-log.html
For information about the role of the redo log in crash recovery, see Section 14.19.2, “InnoDB Recovery”. If InnoDB detects that the innodb_log_file_size differs from the redo log file size, it writes a log checkpoint, closes and removes the old ... The redo log is a disk-based data structure used during crash recovery to correct data written by incomplete ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-temporary-tablespace.html
The innodb_temp_data_file_path variable defines the relative path, name, size, and attributes for temporary tablespace data files. If no value is specified for innodb_temp_data_file_path, the default behavior is to create an auto-extending data file ... Non-compressed, user-created temporary tables and on-disk internal temporary tables are created in a shared temporary ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-cmp-table.html
The INNODB_CMP and INNODB_CMP_RESET tables provide status information on operations related to compressed InnoDB tables. The INNODB_CMP and INNODB_CMP_RESET tables have these columns: PAGE_SIZE The compressed page size in bytes. row ...COMPRESS_OPS ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-cmpmem-table.html
The INNODB_CMPMEM and INNODB_CMPMEM_RESET tables provide status information on compressed pages within the InnoDB buffer pool. The INNODB_CMPMEM and INNODB_CMPMEM_RESET tables have these columns: PAGE_SIZE The block size in bytes. row ...PAGES_USED ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-being-deleted-table.html
The INNODB_FT_BEING_DELETED table provides a snapshot of the INNODB_FT_DELETED table; it is used only during an OPTIMIZE TABLE maintenance operation. When OPTIMIZE TABLE is run, the INNODB_FT_BEING_DELETED table is emptied, and DOC_ID values are ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-index-cache-table.html
The INNODB_FT_INDEX_CACHE table provides token information about newly inserted rows in a FULLTEXT index. Before querying it, set the value of the innodb_ft_aux_table system variable to the name (including the database name) of the table that ...