Index Merge Optimization with High InnoDB Buffer Miss Rate
(Doc ID 2093607.1)
Last updated on JANUARY 31, 2017
Applies to:MySQL Server - Version 5.1 to 5.7 [Release 5.1 to 5.7]
Information in this document applies to any platform.
- Queries with index_merge are taking long time to complete;
- High miss rate for InnoDB buffer pool (innodb_buffer_pool_reads increases more than 20/sec).
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