Maning

Active Member
Jun 29, 2017
36
4
8
Bulgaria
cPanel Access Level
Root Administrator
my mysql is using about 70-80% every time of cpu and about 5% memory,
and many times when high traffic, websites takes too long to load (and load goes up to 120%)

my server is i7-6700 with 64gb ram, im using centos 7.5

here is my my.cnf and mysqltuner log

could someone help me?

my my.cnf
Code:
[mysqld]
performance-schema=0
sql_mode="TRADITIONAL,NO_AUTO_CREATE_USER"

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

performance-schema=0
symbolic-links=0

performance-schema=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
default-storage-engine=MyISAM
innodb_file_per_table=1
max_allowed_packet=268435456
open_files_limit=10000

query_cache_size = 134217728
query_cache_limit = 1048576
query_cache_type = 1
MySQLTuner report
Code:
 >>  MySQLTuner 1.7.13 - 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 5.7.23
[OK] Operating on 64-bit architecture

-------- Log file Recommendations ------------------------------------------------------------------
[--] Log file: /var/log/mysqld.log(51K)
[OK] Log file /var/log/mysqld.log exists
[OK] Log file /var/log/mysqld.log is readable.
[OK] Log file /var/log/mysqld.log is not empty
[OK] Log file /var/log/mysqld.log is smaller than 32 Mb
[!!] /var/log/mysqld.log contains 30 warning(s).
[OK] /var/log/mysqld.log doesn't contain any error.
[--] 7 start(s) detected in /var/log/mysqld.log
[--] 1) 2018-10-13T15:05:12.511139Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 2) 2018-10-13T11:32:48.122869Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 3) 2018-10-13T07:51:22.220487Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 4) 2018-10-12T21:19:35.696050Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 5) 2018-10-12T19:56:32.623434Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 6) 2018-10-12T19:53:44.496282Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 7) 2018-10-12T19:00:01.782947Z 0 [Note] /usr/sbin/mysqld: ready for connections.
[--] 6 shutdown(s) detected in /var/log/mysqld.log
[--] 1) 2018-10-13T15:05:11.787954Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
[--] 2) 2018-10-13T11:32:47.471613Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
[--] 3) 2018-10-13T07:51:21.589115Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
[--] 4) 2018-10-12T21:19:35.255549Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
[--] 5) 2018-10-12T19:55:29.363553Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
[--] 6) 2018-10-12T19:52:41.055263Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

-------- Storage Engine Statistics -----------------------------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MEMORY +MRG_MYISAM +MyISAM +PERFORMANCE_SCHEMA
[--] Data in InnoDB tables: 3.2G (Tables: 1282)
[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: 2h 6m 35s (157M q [20K qps], 16K conn, TX: 33G, RX: 25G)
[--] Reads / Writes: 99% / 1%
[--] Binary logging is disabled
[--] Physical Memory     : 62.5G
[--] Max MySQL memory    : 465.9M
[--] Other process memory: 1.3G
[--] Total buffers: 296.0M global + 1.1M per thread (151 max threads)
[--] P_S Max memory usage: 0B
[--] Galera GCache Max memory usage: 0B
[OK] Maximum reached memory usage: 325.2M (0.51% of installed RAM)
[OK] Maximum possible memory usage: 465.9M (0.73% of installed RAM)
[OK] Overall possible memory usage with other process is compatible with memory available
[OK] Slow queries: 0% (0/157M)
[OK] Highest usage of available connections: 17% (26/151)
[OK] Aborted connections: 0.01%  (1/16553)
[!!] 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: 98.8% (155M cached / 157M selects)
[!!] Query cache prunes per day: 17096108
[OK] Sorts requiring temporary tables: 0% (6K temp sorts / 841K sorts)
[!!] Joins performed without indexes: 4730
[OK] Temporary tables created on disk: 3% (18K on disk / 462K total)
[OK] Thread cache hit rate: 98% (241 created / 16K connections)
[!!] Table cache hit rate: 3% (2K open / 54K opened)
[OK] Open file limit used: 0% (7/10K)
[OK] Table locks acquired immediately: 100% (389 immediate / 389 locks)

-------- Performance schema ------------------------------------------------------------------------
[--] Performance schema is disabled.
[--] Memory used by P_S: 0B
[--] Sys schema is installed.

-------- ThreadPool Metrics ------------------------------------------------------------------------
[--] ThreadPool stat is disabled.

-------- MyISAM Metrics ----------------------------------------------------------------------------
[!!] Key buffer used: 18.3% (1M used / 8M cache)
[OK] Key buffer size / total MyISAM indexes: 8.0M/47.0K
[!!] Read Key buffer hit rate: 93.5% (508 cached / 33 reads)

-------- InnoDB Metrics ----------------------------------------------------------------------------
[--] InnoDB is enabled.
[--] InnoDB Thread Concurrency: 0
[OK] InnoDB File per table is activated
[!!] InnoDB buffer pool / data size: 128.0M/3.2G
[!!] Ratio InnoDB log file size / InnoDB Buffer pool size (75 %): 48.0M * 2/128.0M should be equal 25%
[OK] InnoDB buffer pool instances: 1
[--] Number of InnoDB Buffer Pool Chunk : 1 for 1 Buffer Pool Instance(s)
[OK] Innodb_buffer_pool_size aligned with Innodb_buffer_pool_chunk_size & Innodb_buffer_pool_instances
[OK] InnoDB Read buffer efficiency: 99.64% (931222730 hits/ 934624265 total)
[OK] InnoDB Write log efficiency: 97.77% (1207665 hits/ 1235213 total)
[OK] InnoDB log waits: 0.00% (0 waits / 27548 writes)

-------- AriaDB Metrics ----------------------------------------------------------------------------
[--] AriaDB is disabled.

-------- 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: ROW
[--] XA support enabled: ON
[--] Semi synchronous replication Master: Not Activated
[--] Semi synchronous replication Slave: Not Activated
[--] This is a standalone server

-------- Recommendations ---------------------------------------------------------------------------
General recommendations:
    Control warning line(s) into /var/log/mysqld.log file
    MySQL was started within the last 24 hours - recommendations may be inaccurate
    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
    Increase table_open_cache gradually to avoid file descriptor limits
    Read this before increasing table_open_cache over 64: http://bit.ly/1mi7c4C
    Read this before increasing for MariaDB https://mariadb.com/kb/en/library/optimizing-table_open_cache/
    This is MyISAM only table_cache scalability problem, InnoDB not affected.
    See more details here: https://bugs.mysql.com/bug.php?id=49177
    This bug already fixed in MySQL 5.7.9 and newer MySQL versions.
    Beware that open_files_limit (10000) variable
    should be greater than table_open_cache (2000)
    Performance schema should be activated for better diagnostics
    Before changing innodb_log_file_size and/or innodb_log_files_in_group read this: http://bit.ly/2wgkDvS
Variables to adjust:
    query_cache_size (=0)
    query_cache_type (=0)
    query_cache_size (> 128M) [see warning above]
    join_buffer_size (> 256.0K, or always use indexes with JOINs)
    table_open_cache (> 2000)
    performance_schema = ON enable PFS
    innodb_buffer_pool_size (>= 3.2G) if possible.
    innodb_log_file_size should be (=16M) if possible, so InnoDB total log files size equals to 25% of buffer pool size.