>> MySQLTuner 1.7.15 - 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] Currently running supported MySQL version 10.1.40-MariaDB
[OK] Operating on 64-bit architecture

-------- Log file Recommendations ------------------------------------------------------------------
[--] Log file: /var/lib/mysql/localhost.localdomain.err(0B)
[OK] Log file /var/lib/mysql/localhost.localdomain.err exists
[OK] Log file /var/lib/mysql/localhost.localdomain.err is readable.
[!!] Log file /var/lib/mysql/localhost.localdomain.err is empty
[OK] Log file /var/lib/mysql/localhost.localdomain.err is smaller than 32 Mb
[OK] /var/lib/mysql/localhost.localdomain.err doesn't contain any warning.
[OK] /var/lib/mysql/localhost.localdomain.err doesn't contain any error.
[--] 0 start(s) detected in /var/lib/mysql/localhost.localdomain.err
[--] 0 shutdown(s) detected in /var/lib/mysql/localhost.localdomain.err

-------- Storage Engine Statistics -----------------------------------------------------------------
[--] Status: +Aria +CSV +InnoDB +MEMORY +MRG_MyISAM +MyISAM +PERFORMANCE_SCHEMA +SEQUENCE
[--] Data in MyISAM tables: 29.6M (Tables: 1662)
[--] Data in InnoDB tables: 20.6G (Tables: 72661)
[OK] Total fragmented tables: 0

-------- Analysis Performance Metrics --------------------------------------------------------------
[--] innodb_stats_on_metadata: OFF
[OK] No stat updates during querying INFORMATION_SCHEMA.

-------- 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: 1d 2h 34m 30s (176M q [1K qps], 398K conn, TX: 374G, RX: 35G)
[--] Reads / Writes: 99% / 1%
[--] Binary logging is disabled
[--] Physical Memory : 62.9G
[--] Max MySQL memory : 51.5G
[--] Other process memory: 0B
[--] Total buffers: 51.2G global + 3.7M per thread (100 max threads)
[--] P_S Max memory usage: 0B
[--] Galera GCache Max memory usage: 0B
[OK] Maximum reached memory usage: 51.3G (81.53% of installed RAM)
[OK] Maximum possible memory usage: 51.5G (81.93% of installed RAM)
[OK] Overall possible memory usage with other process is compatible with memory available
[OK] Slow queries: 0% (2/176M)
[OK] Highest usage of available connections: 30% (30/100)
[OK] Aborted connections: 0.00% (7/398329)
[!!] name resolution is active : a reverse name resolution is made for each new connection and can reduce performance
[!!] Query cache may be disabled by default due to mutex contention.
[OK] Query cache efficiency: 48.2% (161M cached / 334M selects)
[!!] Query cache prunes per day: 5643774
[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 2M sorts)
[!!] Joins performed without indexes: 14684
[!!] Temporary tables created on disk: 32% (442K on disk / 1M total)
[OK] Thread cache hit rate: 99% (30 created / 398K connections)
[OK] Table cache hit rate: 71% (147K open / 204K opened)
[OK] Open file limit used: 1% (5K/450K)
[OK] Table locks acquired immediately: 99% (27M immediate / 27M locks)

-------- Performance schema ------------------------------------------------------------------------
[--] Performance schema is disabled.
[--] Memory used by P_S: 0B
[--] Sys schema isn't installed.

-------- ThreadPool Metrics ------------------------------------------------------------------------
[--] ThreadPool stat is enabled.
[--] Thread Pool Size: 24 thread(s).
[--] Using default value is good enough for your version (10.1.40-MariaDB)

-------- MyISAM Metrics ----------------------------------------------------------------------------
[!!] Key buffer used: 20.1% (2M used / 10M cache)
[OK] Key buffer size / total MyISAM indexes: 10.0M/10.5M
[OK] Read Key buffer hit rate: 97.8% (4K cached / 100 reads)
[OK] Write Key buffer hit rate: 100.0% (10 cached / 10 writes)

-------- InnoDB Metrics ----------------------------------------------------------------------------
[--] InnoDB is enabled.
[--] InnoDB Thread Concurrency: 0
[OK] InnoDB File per table is activated
[OK] InnoDB buffer pool / data size: 40.0G/20.6G
[OK] Ratio InnoDB log file size / InnoDB Buffer pool size: 5.0G * 2/40.0G should be equal to 25%
[OK] InnoDB buffer pool instances: 40
[--] InnoDB Buffer Pool Chunk Size not used or defined in your version
[OK] InnoDB Read buffer efficiency: 99.98% (4057651921 hits/ 4058639907 total)
[!!] InnoDB Write Log efficiency: 28.23% (224212 hits/ 794242 total)
[OK] InnoDB log waits: 0.00% (0 waits / 1018454 writes)

-------- AriaDB Metrics ----------------------------------------------------------------------------
[--] AriaDB is enabled.
[OK] Aria pagecache size / total Aria indexes: 128.0M/1B
[OK] Aria pagecache hit rate: 98.6% (20M cached / 273K reads)

-------- TokuDB Metrics ----------------------------------------------------------------------------
[--] TokuDB is disabled.

-------- XtraDB Metrics ----------------------------------------------------------------------------
[--] XtraDB is disabled.

-------- Galera Metrics ----------------------------------------------------------------------------
[--] Galera is disabled.

-------- Replication Metrics -----------------------------------------------------------------------
[--] Galera Synchronous replication: NO
[--] No replication slave(s) for this server.
[--] Binlog format: STATEMENT
[--] XA support enabled: ON
[--] Semi synchronous replication Master: Not Activated
[--] Semi synchronous replication Slave: Not Activated
[--] This is a standalone server

-------- Recommendations ---------------------------------------------------------------------------
General recommendations:
Configure your accounts with ip or subnets only, then update your configuration with skip-name-resolve=1
Increasing the query_cache size over 128M may reduce performance
Adjust your join queries to always utilize indexes
Temporary table size is already large - reduce result set size
Reduce your SELECT DISTINCT queries without LIMIT clauses
Performance schema should be activated for better diagnostics
Consider installing Sys schema from https://github.com/mysql/mysql-sys for MySQL
Consider installing Sys schema from https://github.com/good-dba/mariadb-sys for MariaDB
Variables to adjust:
query_cache_size (=0)
query_cache_type (=0)
query_cache_size (> 10G) [see warning above]
join_buffer_size (> 1.0M, or always use indexes with JOINs)
performance_schema = ON enable PFS