mySQL Optimization

zmenchhofer

• September 19, 2014 16:40

can someone look at mysqltunner results and config and give some advice ? THanks!!!! >> MySQLTuner 1.3.0 - Major Hayden >> Bug reports, feature requests, and downloads at http://mysqltuner.com/ >> Run with '--help' for additional options and output filtering [OK] Currently running supported MySQL version 5.5.37-cll [OK] Operating on 64-bit architecture -------- Storage Engine Statistics ------------------------------------------- [--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM [--] Data in MyISAM tables: 2G (Tables: 508) [--] Data in InnoDB tables: 2G (Tables: 190) [--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 17) [--] Data in MEMORY tables: 0B (Tables: 5) [!!] Total fragmented tables: 49 -------- Security Recommendations ------------------------------------------- [OK] All database users have passwords assigned -------- Performance Metrics ------------------------------------------------- [--] Up for: 1d 8h 24m 45s (12M q [107.484 qps], 323K conn, TX: 284B, RX: 13B) [--] Reads / Writes: 85% / 15% [--] Total buffers: 3.4G global + 258.6M per thread (151 max threads) [!!] Maximum possible memory usage: 41.5G (540% of installed RAM) [OK] Slow queries: 0% (160/12M) [OK] Highest usage of available connections: 22% (34/151) [OK] Key buffer size / total MyISAM indexes: 1.0G/499.6M [OK] Key buffer hit rate: 99.9% (183M cached / 114K reads) [OK] Query cache efficiency: 51.1% (5M cached / 10M selects) [!!] Query cache prunes per day: 286388 [OK] Sorts requiring temporary tables: 0% (581 temp sorts / 204K sorts) [!!] Joins performed without indexes: 340 [OK] Temporary tables created on disk: 1% (1K on disk / 124K total) [OK] Thread cache hit rate: 99% (51 created / 323K connections) [OK] Table cache hit rate: 36% (890 open / 2K opened) [OK] Open file limit used: 13% (1K/8K) [OK] Table locks acquired immediately: 99% (7M immediate / 7M locks) [!!] InnoDB buffer pool / data size: 2.0G/2.7G [OK] InnoDB log waits: 0 -------- Recommendations ----------------------------------------------------- General recommendations: Run OPTIMIZE TABLE to defragment tables for better performance Reduce your overall MySQL memory footprint for system stability Enable the slow query log to troubleshoot bad queries Adjust your join queries to always utilize indexes Variables to adjust: *** MySQL's maximum memory usage is dangerously high *** *** Add RAM before increasing MySQL buffer variables *** query_cache_size (> 128M) join_buffer_size (> 256.0M, or always use indexes with joins) innodb_buffer_pool_size (>= 2G)
and my config [mysqld] default-storage-engine=MyISAM innodb_file_per_table=1 max_allowed_packet=256M open_files_limit=5780 query_cache_type=1 query_cache_size=128M query_cache_limit=150M tmp_table_size=256M max_heap_table_size=256M long_query_time = 5 thread_cache_size=16 table_cache=1K table_definition_cache = 4K table_open_cache=4096 innodb_buffer_pool_size=2G key_buffer_size=1G join_buffer_size=256M low_priority_updates=1 concurrent_insert=ALWAYS

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  cPanelMichael

  • September 22, 2014 20:13

  Hello :) Sometimes it's helpful to provide information about what lead you to seeking assistance with optimization. Are you experiencing a specific issue with speed, or is it simply a matter of wanting to optimize the performance the most you can? Thank you.

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  PascM

  • September 23, 2014 00:07

  Seems like the OP needs some help considering [QUOTE]Maximum possible memory usage: 41.5G (540% of installed RAM)
  

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