Hasil MySQL Tuner Server

root@keket:~#   ./mysqltuner.pl --user root --pass="hahahaha"
 >>  MySQLTuner 1.6.13 - Major Hayden <major@mhtx.net>
 >>  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] Logged in using credentials passed on the command line
[OK] Currently running supported MySQL version 5.5.49-0ubuntu0.14.04.1-log
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -----------------------------------------------------------------
Use of uninitialized value in string eq at ./mysqltuner.pl line 1781 (#1)
    (W uninitialized) An undefined value was used as if it were already
    defined.  It was interpreted as a "" or a 0, but maybe it was a mistake.
    To suppress this warning assign a defined value to your variables.
    To help you figure out what was undefined, perl will try to tell you
    the name of the variable (if any) that was undefined.  In some cases
    it cannot do this, so it also tells you what operation you used the
    undefined value in.  Note, however, that perl optimizes your program
    anid the operation displayed in the warning may not necessarily appear
    literally in your program.  For example, "that $foo" is usually
    optimized into "that " . $foo, and the warning will refer to the
    concatenation (.) operator, even though there is no . in
    your program.
[--] Data in MyISAM tables: 10M (Tables: 95)
[OK] Total fragmented tables: 0
-------- Security Recommendations ------------------------------------------------------------------
[OK] There are no anonymous accounts for any database users
[OK] All database users have passwords assigned
[!!] There is no basic password file list!
-------- CVE Security Recommendations --------------------------------------------------------------
[--] Skipped due to --cvefile option undefined
-------- Performance Metrics -----------------------------------------------------------------------
[--] Up for: 33m 54s (2K q [1.314 qps], 267 conn, TX: 22M, RX: 283K)
[--] Reads / Writes: 98% / 2%
[--] Binary logging is disabled
[--] Physical Memory     : 994.0M
[--] Max MySQL memory    : 1.2G
[--] Other process memory: 515.4M
[--] Total buffers: 275.0M global + 6.5M per thread (151 max threads)
[--] P_S Max memory usage: 0B
[--] Galera GCache Max memory usage: 0B
[OK] Maximum reached memory usage: 288.0M (28.97% of installed RAM)
[!!] Maximum possible memory usage: 1.2G (126.41% of installed RAM)
[!!] Overall possible memory usage with other process exceeded memory
[OK] Slow queries: 0% (0/2K)
[OK] Highest usage of available connections: 1% (2/151)
[OK] Aborted connections: 0.00%  (0/267)
[OK] Query cache is disabled by default due to mutex contention on multiprocessor machines.
[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 361 sorts)
[OK] No joins without indexes
[!!] Temporary tables created on disk: 31% (215 on disk / 692 total)
[OK] Table cache hit rate: 95% (137 open / 144 opened)
[OK] Open file limit used: 23% (240/1K)
[OK] Table locks acquired immediately: 100% (1K immediate / 1K locks)
-------- Performance schema ------------------------------------------------------------------------
[--] Performance schema is disabled.
-------- ThreadPool Metrics ------------------------------------------------------------------------
[--] ThreadPool stat is disabled.
-------- MyISAM Metrics ----------------------------------------------------------------------------
[!!] Key buffer used: 18.3% (49M used / 268M cache)
[OK] Key buffer size / total MyISAM indexes: 256.0M/2.2M
[OK] Read Key buffer hit rate: 99.3% (24K cached / 165 reads)
[!!] Write Key buffer hit rate: 0.0% (120 cached / 120 writes)
-------- AriaDB Metrics ----------------------------------------------------------------------------
[--] AriaDB is disabled.
-------- InnoDB Metrics ----------------------------------------------------------------------------
[--] InnoDB is disabled.
[!!] InnoDB Storage engine is disabled. InnoDB is the default storage engine
-------- 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:
    MySQL started within last 24 hours - recommendations may be inaccurate
    Reduce your overall MySQL memory footprint for system stability
    Dedicate this server to your database for highest performance.
    When making adjustments, make tmp_table_size/max_heap_table_size equal
    Reduce your SELECT DISTINCT queries which have no LIMIT clause
Variables to adjust:
  *** MySQL's maximum memory usage is dangerously high ***
  *** Add RAM before increasing MySQL buffer variables ***
    tmp_table_size (> 17M)
    max_heap_table_size (> 17M)
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