June 19, 2013

Post: Benchmarking Percona Server TokuDB vs InnoDB

… is worrisome to me. Let’s zoom in to 10 min intervals and see throughput: We can see periodical drops, which…_size = 1000 query_cache_size = 0 query_cache_type = 0 ft_min_word_len = 4 #default_table_type = InnoDB thread_stack = 192K…

Post: Virident vCache vs. FlashCache: Part 2

…_size = 1000 query_cache_size = 0 query_cache_type = 0 ft_min_word_len = 4 thread_stack = 192K tmp_table_size = 64M…

Post: InnoDB Full-text Search in MySQL 5.6: Part 2, The Queries!

… set innodb_ft_min_token_size to 4 (rather than the default of 3) so that it matches MyISAM’s default ft_min_word…’s middle initial. To test this hypothesis, I reset innodb_ft_min_token_size to 1, dropped/rebuilt the InnoDB index, and… raise the question of why it works with MyISAM when ft_min_word_length defaults to 4, but that is a topic…

Post: InnoDB Full-text Search in MySQL 5.6 (part 1)

…. The second part will compare query results between MyISAM FTS and InnoDB FTS over the same data sets, and then finally in… rows affected (8 min 13.13 sec) Records: 245051 Duplicates: 0 Warnings: 0 mysql> select * from information_schema.innodb_ft_config; +—————————+———+ | KEY… for MySQL 5.6, and that was to change innodb_ft_min_token_size from the default of 3 to a value…

Post: Ultimate MySQL variable and status reference list

…_key_checksblogpercona.commanual ft_boolean_syntaxblogpercona.commanual ft_max_word_lenblogpercona.commanual ft_min_word_lenblogpercona.commanual ft_query_expansion_limitblogpercona.commanual ft_stopword_fileblogpercona.commanual…_user_connectionsblogpercona.commanual max_write_lock_countblogpercona.commanual memlockblogpercona.commanual min_examined_row_limitblogpercona.commanual myisam_block_sizeblogpercona.commanual myisam_data…

Post: MySQL Server Variables - SQL layer or Storage Engine specific.

… sure data hits the disk ft_boolean_syntax, ft_max_word_len, ft_min_word_len, ft_query_expansion_limit, ft_stopword_file FullText search related…

Post: MySQL Full Text Search in Action

… their MySQL Full Text Search index configuration and setting proper ft_min_word_len value. Searching for Audi A6 will give you…. At the same time we can find V40 which means ft_min_word_len was adjusted from default value of 4 which…

Comment: ORDER BY ... LIMIT Performance Optimization

… our application query (book search) it takes more than 3 mins for execution. Below i have given the query & cnf details…_connections=1000 max_heap_table_size=1073741824 local_infile=0 ft_min_word_len=3 tmpdir = /opt/ key_buffer_size=256M connect…

Post: MySQL 5.6.7-RC in tpcc-mysql benchmark

…_size = 1000 query_cache_size = 0 query_cache_type = 0 ft_min_word_len = 4 thread_stack = 192K tmp_table_size = 64M…

Post: XtraDB/InnoDB CPU bound benchmarks on 24cores server

…] user=root binlog_cache_size=1M default_table_type=MYISAM ft_min_word_len=4 innodb_additional_mem_pool_size=16M innodb…