<IfModule mpm_prefork_module>
Serverlimit 5000
StartServers 25
MinSpareServers 25
MaxSpareServers 50
MaxRequestWorkers 5000
MaxConnectionsPerChild 10000
</IfModule>#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer_size = 32M
max_allowed_packet = 32M
thread_stack = 1M
thread_cache_size = 8
join_buffer_size = 4M
open_files_limit = 64000
max_heap_table_size = 64M
tmp_table_size = 64M
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover-options = BACKUP
max_connections = 500
table_open_cache = 5000
table_definition_cache = 5000
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
#
# Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem >> MySQLTuner 1.7.0 - 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 from debian maintenance account.
[OK] Currently running supported MySQL version 5.7.16
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -----------------------------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MEMORY +MRG_MYISAM +MyISAM +PERFORMANCE_SCHEMA
[--] Data in MEMORY tables: 872K (Tables: 2)
[--] Data in MyISAM tables: 2G (Tables: 262)
[--] Data in InnoDB tables: 2M (Tables: 79)
[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 are 612 basic passwords in the list.
-------- CVE Security Recommendations --------------------------------------------------------------
[OK] NO SECURITY CVE FOUND FOR YOUR VERSION
-------- Performance Metrics -----------------------------------------------------------------------
[--] Up for: 3d 4h 12m 2s (16M q [59.653 qps], 1M conn, TX: 847G, RX: 4G)
[--] Reads / Writes: 91% / 9%
[--] Binary logging is disabled
[--] Physical Memory : 7.7G
[--] Max MySQL memory : 3.0G
[--] Other process memory: 768.6M
[--] Total buffers: 256.0M global + 5.6M per thread (500 max threads)
[--] P_S Max memory usage: 0B
[--] Galera GCache Max memory usage: 0B
[OK] Maximum reached memory usage: 329.1M (4.15% of installed RAM)
[OK] Maximum possible memory usage: 3.0G (38.72% of installed RAM)
[OK] Overall possible memory usage with other process is compatible with memory available
[OK] Slow queries: 0% (0/16M)
[OK] Highest usage of available connections: 2% (13/500)
[OK] Aborted connections: 0.00% (18/1388965)
[!!] name resolution is active : a reverse name resolution is made for each new connection and can reduce performance
[OK] Query cache is disabled by default due to mutex contention on multiprocessor machines.
[OK] Sorts requiring temporary tables: 0% (2K temp sorts / 1M sorts)
[!!] Joins performed without indexes: 133436
[OK] Temporary tables created on disk: 3% (11K on disk / 302K total)
[OK] Thread cache hit rate: 99% (262 created / 1M connections)
[!!] Table cache hit rate: 13% (2K open / 16K opened)
[OK] Open file limit used: 42% (2K/5K)
[OK] Table locks acquired immediately: 99% (20M immediate / 20M locks)
-------- Performance schema ------------------------------------------------------------------------
[--] Performance schema is disabled.
-------- ThreadPool Metrics ------------------------------------------------------------------------
[--] ThreadPool stat is disabled.
-------- MyISAM Metrics ----------------------------------------------------------------------------
[OK] Key buffer used: 100.0% (33M used / 33M cache)
[OK] Key buffer size / total MyISAM indexes: 32.0M/603.6M
[OK] Read Key buffer hit rate: 99.6% (707M cached / 2M reads)
[!!] Write Key buffer hit rate: 42.6% (977K cached / 561K writes)
-------- InnoDB Metrics ----------------------------------------------------------------------------
[--] InnoDB is enabled.
[OK] InnoDB buffer pool / data size: 128.0M/2.3M
[!!] Ratio InnoDB log file size / InnoDB Buffer pool size (37.5 %): 48.0M/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: 99.99% (4826285 hits/ 4826986 total)
[!!] InnoDB Write Log efficiency: 119.5% (23389 hits/ 19573 total)
[OK] InnoDB log waits: 0.00% (0 waits / 42962 writes)
-------- AriaDB Metrics ----------------------------------------------------------------------------
[--] AriaDB is disabled.
-------- TokuDB Metrics ----------------------------------------------------------------------------
[--] TokuDB is disabled.
-------- XtraDB Metrics ----------------------------------------------------------------------------
[--] XtraDB is disabled.
-------- RocksDB Metrics ---------------------------------------------------------------------------
[--] RocksDB is disabled.
-------- Spider Metrics ----------------------------------------------------------------------------
[--] Spider is disabled.
-------- Connect Metrics ---------------------------------------------------------------------------
[--] Connect 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:
Configure your accounts with ip or subnets only, then update your configuration with skip-name-resolve=1
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 (5000) variable
should be greater than table_open_cache (2245)
Variables to adjust:
join_buffer_size (> 4.0M, or always use indexes with joins)
table_open_cache (> 2245)
innodb_log_file_size should be equals to 1/4 of buffer pool size (=32M) if possible.Interessant. Warum die Deaktivierung?
[OK] Query cache is disabled by default due to mutex contention on multiprocessor machines.OK, meine vorige Antwort war zu unspezifisch:
-- MYSQL PERFORMANCE TUNING PRIMER --
- By: Matthew Montgomery -
MySQL Version 5.7.16 x86_64
Uptime = 3 days 0 hrs 29 min 45 sec
Avg. qps = 78
Total Questions = 20438773
Threads Connected = 2
Server has been running for over 48hrs.
It should be safe to follow these recommendations
To find out more information on how each of these
runtime variables effects performance visit:
http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
Visit http://www.mysql.com/products/enterprise/advisors.html
for info about MySQL's Enterprise Monitoring and Advisory Service
SLOW QUERIES
The slow query log is NOT enabled.
Current long_query_time = 10.000000 sec.
You have 0 out of 20438794 that take longer than 10.000000 sec. to complete
Your long_query_time seems to be fine
BINARY UPDATE LOG
The binary update log is NOT enabled.
You will not be able to do point in time recovery
See http://dev.mysql.com/doc/refman/5.7/en/point-in-time-recovery.html
WORKER THREADS
Current thread_cache_size = 8
Current threads_cached = 7
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine
MAX CONNECTIONS
Current max_connections = 500
Current threads_connected = 2
Historic max_used_connections = 12
The number of used connections is 2% of the configured maximum.
You are using less than 10% of your configured max_connections.
Lowering max_connections could help to avoid an over-allocation of memory
See "MEMORY USAGE" section to make sure you are not over-allocating
No InnoDB Support Enabled!
MEMORY USAGE
Max Memory Ever Allocated : 595 M
Configured Max Per-thread Buffers : 16.41 G
Configured Max Global Buffers : 192 M
Configured Max Memory Limit : 16.60 G
Physical Memory : 7.73 G
Max memory limit exceeds 90% of physical memory
KEY BUFFER
Current MyISAM index space = 631 M
Current key_buffer_size = 32 M
Key cache miss rate is 1 : 317
Key buffer free ratio = 0 %
You could increase key_buffer_size
It is safe to raise this up to 1/4 of total system memory;
assuming this is a dedicated database server.
QUERY CACHE
Query cache is enabled
Current query_cache_size = 16 M
Current query_cache_used = 16 K
Current query_cache_limit = 1 M
Current Query cache Memory fill ratio = .10 %
Current query_cache_min_res_unit = 4 K
Your query_cache_size seems to be too high.
Perhaps you can use these resources elsewhere
MySQL won't cache query results that are larger than query_cache_limit in size
SORT OPERATIONS
Current sort_buffer_size = 256 K
Current read_rnd_buffer_size = 256 K
Sort buffer seems to be fine
JOINS
Current join_buffer_size = 32.00 M
You have had 161833 queries where a join could not use an index properly
join_buffer_size >= 4 M
This is not advised
You should enable "log-queries-not-using-indexes"
Then look for non indexed joins in the slow query log.
OPEN FILES LIMIT
Current open_files_limit = 5000 files
The open_files_limit should typically be set to at least 2x-3x
that of table_cache if you have heavy MyISAM usage.
Your open_files_limit value seems to be fine
TABLE CACHE
Current table_open_cache = 2245 tables
Current table_definition_cache = 5000 tables
You have a total of 464 tables
You have 2240 open tables.
Current table_cache hit rate is 10%
, while 99% of your table cache is in use
You should probably increase your table_cache
TEMP TABLES
Current max_heap_table_size = 64 M
Current tmp_table_size = 64 M
Of 344807 temp tables, 3% were created on disk
Created disk tmp tables ratio seems fine
TABLE SCANS
Current read_buffer_size = 128 K
Current table scan ratio = 259 : 1
read_buffer_size seems to be fine
TABLE LOCKING
Current Lock Wait ratio = 1 : 2672
You may benefit from selective use of InnoDB.
If you have long running SELECT's against MyISAM tables and perform
frequent updates consider setting 'low_priority_updates=1'
If you have a high concurrency of inserts on Dynamic row-length tables
consider setting 'concurrent_insert=ALWAYS'.
-- MYSQL PERFORMANCE TUNING PRIMER --
- By: Matthew Montgomery -
MySQL Version 5.7.16 x86_64
Uptime = 3 days 2 hrs 18 min 26 sec
Avg. qps = 71
Total Questions = 19148051
Threads Connected = 2
Server has been running for over 48hrs.
It should be safe to follow these recommendations
To find out more information on how each of these
runtime variables effects performance visit:
http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
Visit http://www.mysql.com/products/enterprise/advisors.html
for info about MySQL's Enterprise Monitoring and Advisory Service
SLOW QUERIES
The slow query log is NOT enabled.
Current long_query_time = 0.500000 sec.
You have 0 out of 19148073 that take longer than 0.500000 sec. to complete
Your long_query_time seems to be fine
BINARY UPDATE LOG
The binary update log is NOT enabled.
You will not be able to do point in time recovery
See http://dev.mysql.com/doc/refman/5.7/en/point-in-time-recovery.html
WORKER THREADS
Current thread_cache_size = 8
Current threads_cached = 7
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine
MAX CONNECTIONS
Current max_connections = 500
Current threads_connected = 2
Historic max_used_connections = 14
The number of used connections is 2% of the configured maximum.
You are using less than 10% of your configured max_connections.
Lowering max_connections could help to avoid an over-allocation of memory
See "MEMORY USAGE" section to make sure you are not over-allocating
No InnoDB Support Enabled!
MEMORY USAGE
Max Memory Ever Allocated : 487 M
Configured Max Per-thread Buffers : 3.05 G
Configured Max Global Buffers : 400 M
Configured Max Memory Limit : 3.44 G
Physical Memory : 7.73 G
Max memory limit seem to be within acceptable norms
KEY BUFFER
Current MyISAM index space = 642 M
Current key_buffer_size = 256 M
Key cache miss rate is 1 : 3218
Key buffer free ratio = 0 %
You could increase key_buffer_size
It is safe to raise this up to 1/4 of total system memory;
assuming this is a dedicated database server.
QUERY CACHE
Query cache is supported but not enabled
Perhaps you should set the query_cache_size
SORT OPERATIONS
Current sort_buffer_size = 4 M
Current read_rnd_buffer_size = 512 K
Sort buffer seems to be fine
JOINS
Current join_buffer_size = 516.00 K
You have had 188198 queries where a join could not use an index properly
You should enable "log-queries-not-using-indexes"
Then look for non indexed joins in the slow query log.
If you are unable to optimize your queries you may want to increase your
join_buffer_size to accommodate larger joins in one pass.
Note! This script will still suggest raising the join_buffer_size when
ANY joins not using indexes are found.
OPEN FILES LIMIT
Current open_files_limit = 5000 files
The open_files_limit should typically be set to at least 2x-3x
that of table_cache if you have heavy MyISAM usage.
Your open_files_limit value seems to be fine
TABLE CACHE
Current table_open_cache = 2245 tables
Current table_definition_cache = 4096 tables
You have a total of 464 tables
You have 2240 open tables.
Current table_cache hit rate is 16%
, while 99% of your table cache is in use
You should probably increase your table_cache
TEMP TABLES
Current max_heap_table_size = 256 M
Current tmp_table_size = 256 M
Of 398481 temp tables, 2% were created on disk
Created disk tmp tables ratio seems fine
TABLE SCANS
Current read_buffer_size = 256 K
Current table scan ratio = 274 : 1
read_buffer_size seems to be fine
TABLE LOCKING
Current Lock Wait ratio = 1 : 2677
You may benefit from selective use of InnoDB.
If you have long running SELECT's against MyISAM tables and perform
frequent updates consider setting 'low_priority_updates=1'
If you have a high concurrency of inserts on Dynamic row-length tables
consider setting 'concurrent_insert=ALWAYS'. >> MySQLTuner 1.7.0 - 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 from debian maintenance account.
[OK] Currently running supported MySQL version 5.7.16
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -----------------------------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MEMORY +MRG_MYISAM +MyISAM +PERFORMANCE_SCHEMA
[--] Data in MEMORY tables: 1M (Tables: 2)
[--] Data in MyISAM tables: 2G (Tables: 262)
[--] Data in InnoDB tables: 2M (Tables: 81)
[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 are 612 basic passwords in the list.
-------- CVE Security Recommendations --------------------------------------------------------------
[OK] NO SECURITY CVE FOUND FOR YOUR VERSION
-------- Performance Metrics -----------------------------------------------------------------------
[--] Up for: 3d 2h 23m 42s (19M q [71.568 qps], 1M conn, TX: 1062G, RX: 5G)
[--] Reads / Writes: 91% / 9%
[--] Binary logging is disabled
[--] Physical Memory : 7.7G
[--] Max MySQL memory : 3.7G
[--] Other process memory: 962.5M
[--] Total buffers: 656.0M global + 6.2M per thread (500 max threads)
[--] P_S Max memory usage: 0B
[--] Galera GCache Max memory usage: 0B
[OK] Maximum reached memory usage: 743.5M (9.38% of installed RAM)
[OK] Maximum possible memory usage: 3.7G (47.72% of installed RAM)
[OK] Overall possible memory usage with other process is compatible with memory available
[OK] Slow queries: 0% (0/19M)
[OK] Highest usage of available connections: 2% (14/500)
[OK] Aborted connections: 0.00% (3/1441902)
[!!] name resolution is active : a reverse name resolution is made for each new connection and can reduce performance
[OK] Query cache is disabled by default due to mutex contention on multiprocessor machines.
[OK] Sorts requiring temporary tables: 0% (1K temp sorts / 2M sorts)
[!!] Joins performed without indexes: 188220
[OK] Temporary tables created on disk: 2% (11K on disk / 398K total)
[OK] Thread cache hit rate: 99% (80 created / 1M connections)
[!!] Table cache hit rate: 16% (2K open / 13K opened)
[OK] Open file limit used: 44% (2K/5K)
[OK] Table locks acquired immediately: 99% (25M immediate / 25M locks)
-------- Performance schema ------------------------------------------------------------------------
[--] Performance schema is disabled.
-------- ThreadPool Metrics ------------------------------------------------------------------------
[--] ThreadPool stat is disabled.
-------- MyISAM Metrics ----------------------------------------------------------------------------
[OK] Key buffer used: 100.0% (268M used / 268M cache)
[OK] Key buffer size / total MyISAM indexes: 256.0M/642.6M
[OK] Read Key buffer hit rate: 100.0% (980M cached / 304K reads)
[!!] Write Key buffer hit rate: 39.1% (1M cached / 621K writes)
-------- InnoDB Metrics ----------------------------------------------------------------------------
[--] InnoDB is enabled.
[OK] InnoDB buffer pool / data size: 128.0M/2.6M
[!!] Ratio InnoDB log file size / InnoDB Buffer pool size (37.5 %): 48.0M/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: 99.99% (5180814 hits/ 5181467 total)
[!!] InnoDB Write Log efficiency: 166.97% (30149 hits/ 18057 total)
[OK] InnoDB log waits: 0.00% (0 waits / 48206 writes)
-------- AriaDB Metrics ----------------------------------------------------------------------------
[--] AriaDB is disabled.
-------- TokuDB Metrics ----------------------------------------------------------------------------
[--] TokuDB is disabled.
-------- XtraDB Metrics ----------------------------------------------------------------------------
[--] XtraDB is disabled.
-------- RocksDB Metrics ---------------------------------------------------------------------------
[--] RocksDB is disabled.
-------- Spider Metrics ----------------------------------------------------------------------------
[--] Spider is disabled.
-------- Connect Metrics ---------------------------------------------------------------------------
[--] Connect 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:
Configure your accounts with ip or subnets only, then update your configuration with skip-name-resolve=1
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 (5000) variable
should be greater than table_open_cache (2245)
Variables to adjust:
join_buffer_size (> 512.0K, or always use indexes with joins)
table_open_cache (> 2245)
innodb_log_file_size should be equals to 1/4 of buffer pool size (=32M) if possible.