SmartCJ Support Forum

>> MySQLTuner 1.6.13 - Major Hayden <[email protected]>
>> Bug reports, feature requests, and downloads at http://mysqltuner.com/
>> Run with '--help' for additional options and output filtering

-- Skipped version check for MySQLTuner script
[OK Currently running supported MySQL version 5.5.44-log
[OK Operating on 64-bit architecture

-------- Storage Engine Statistics -----------------------------------------------------------------
-- Data in InnoDB tables: 7G (Tables: 894)
-- Data in MyISAM tables: 22G (Tables: 5856)
!! Total fragmented tables: 1

-------- Performance Metrics -----------------------------------------------------------------------
-- Up for: 69d 2h 56m 22s (3B q [520.984 qps], 276M conn, TX: 10694G, RX: 778G)
-- Reads / Writes: 61% / 39%
-- Binary logging is disabled
-- Physical Memory : 63.9G
-- Max MySQL memory : 233.0G
-- Other process memory: 1.3G
-- Total buffers: 14.9G global + 372.2M per thread (600 max threads)
-- P_S Max memory usage: 0B
-- Galera GCache Max memory usage: 0B
!! Maximum reached memory usage: 233.3G (364.85% of installed RAM)
!! Maximum possible memory usage: 233.0G (364.28% of installed RAM)
!! Overall possible memory usage with other process exceeded memory
[K Slow queries: 0% (519K/3B)
!! Highest connection usage: 100% (601/600)
OK Aborted connections: 0.01% (19534/276192469)
!! Query cache may be disabled by default due to mutex contention.
OK Sorts requiring temporary tables: 0% (0 temp sorts / 184M sorts)
!! Joins performed without indexes: 1082204
OK Temporary tables created on disk: 16% (20M on disk / 121M total)
!! Table cache hit rate: 0% (5K open / 1M opened)
OK Open file limit used: 0% (9K/999K)
OK Table locks acquired immediately: 99% (3B immediate / 3B locks)

-------- Performance schema ------------------------------------------------------------------------
-- Performance schema is disabled.

-------- ThreadPool Metrics ------------------------------------------------------------------------
-- ThreadPool stat is disabled.

-------- MyISAM Metrics ----------------------------------------------------------------------------
OK Key buffer used: 93.5% (501M used / 536M cache)
OK Key buffer size / total MyISAM indexes: 512.0M/2.2G
OK Read Key buffer hit rate: 99.8% (656B cached / 1B reads)
!! Write Key buffer hit rate: 89.7% (20B cached / 2B writes)

-------- AriaDB Metrics ----------------------------------------------------------------------------
-- AriaDB is disabled.

-------- InnoDB Metrics ----------------------------------------------------------------------------
-- InnoDB is enabled.
OK InnoDB buffer pool / data size: 14.0G/7.8G
OK InnoDB buffer pool instances: 14
OK InnoDB Used buffer: 99.85% (916128 used/ 917504 total)
OK InnoDB Read buffer efficiency: 100.00% (2446174784818 hits/ 2446175345517 total)
OK InnoDB Write log efficiency: 99.94% (5625828083 hits/ 5629420916 total)
OK InnoDB log waits: 0.00% (0 waits / 3592833 writes)

-------- TokuDB Metrics ----------------------------------------------------------------------------
-- TokuDB is disabled.

-------- Galera Metrics ----------------------------------------------------------------------------
-- Galera is disabled.

-------- Replication Metrics -----------------------------------------------------------------------
-- Galera Synchronous replication: NO
-- No replication slave(s) for this server.
-- This is a standalone server.

-------- Recommendations ---------------------------------------------------------------------------
General recommendations:
Reduce your overall MySQL memory footprint for system stability
Dedicate this server to your database for highest performance.
Reduce or eliminate persistent connections to reduce connection usage
Adjust your join queries to always utilize indexes
Increase table_open_cache gradually to avoid file descriptor limits
Read this before increasing table_open_cache over 64: http://bit.ly/1mi7c4C
Beware that open_files_limit (999999) variable
should be greater than table_open_cache ( 6000)
Variables to adjust:
*** MySQL's maximum memory usage is dangerously high ***
*** Add RAM before increasing MySQL buffer variables ***
max_connections (> 600)
wait_timeout (< 28800)
interactive_timeout (< 28800)
query_cache_type (=0)
join_buffer_size (> 256.0M, or always use indexes with joins)
table_open_cache (> 6000)