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[client]

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

[mysql]

max_allowed_packet = 128M

[mysqld]

ignore-db-dir=cmsetiofiotest

local-infile=0

ignore-db-dir=lost+found

ignore_db_dirs=lost+found

character-set-server=utf8

datadir=/var/lib/mysql

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

#bind-address=127.0.0.1

# optimized my.cnf for MariaDB 5.5.x

# by eva2000

# centminmod.com

tmpdir=/home/mysqltmp

innodb=ON

#skip-federated

#skip-pbxt

##skip-pbxt

#skip-pbxt_statistics

##skip-pbxt_statistics

#skip-archive

#skip-name-resolve

#old_passwords

back_log = 1024

max_connections = 1500

key_buffer_size = 1024M

myisam_sort_buffer_size = 1024M

myisam_max_sort_file_size = 10240M

join_buffer_size = 2M

read_buffer_size = 2M

sort_buffer_size = 2M

table_definition_cache = 10240

table_open_cache = 10240

thread_cache_size = 384

wait_timeout = 1800

connect_timeout = 10

tmp_table_size = 1536M

max_heap_table_size = 1536M

max_allowed_packet = 128M

#max_seeks_for_key = 4294967295

#group_concat_max_len = 1024

max_length_for_sort_data = 1024

net_buffer_length = 16384

max_connect_errors = 100000

concurrent_insert = 2

read_rnd_buffer_size = 512K

bulk_insert_buffer_size = 8M

# query_cache boost for MariaDB >10.1.2+

# https://community.centminmod.com/posts/30811/

query_cache_limit = 1536K

query_cache_size = 256M

query_cache_type = 1

query_cache_min_res_unit = 2K

query_prealloc_size = 262144

query_alloc_block_size = 65536

transaction_alloc_block_size = 8192

transaction_prealloc_size = 4096

default-storage-engine = InnoDB

log_warnings=1

slow_query_log=0

long_query_time=1

slow_query_log_file=/var/lib/mysql/slowq.log

log-error=/var/log/mysqld.log

# innodb settings

innodb_large_prefix=1

innodb_purge_threads=1

innodb_file_format = Barracuda

innodb_file_per_table = 1

innodb_open_files = 10000

innodb_data_file_path= ibdata1:10M:autoextend

innodb_buffer_pool_size = 12288M

## https://mariadb.com/kb/en/mariadb/xtradbinnodb-server-system-variables/#innodb_buffer_pool_instances

innodb_buffer_pool_instances=8

innodb_buffer_pool_instances=12

innodb_log_files_in_group = 2

innodb_log_file_size = 1024M

innodb_log_buffer_size = 64M

innodb_flush_log_at_trx_commit = 2

innodb_thread_concurrency = 0

#innodb_thread_concurrency = 36

innodb_lock_wait_timeout=50

innodb_flush_method = O_DIRECT

innodb_support_xa=1

# 200 * # DISKS

innodb_io_capacity = 800

innodb_io_capacity_max = 2000

innodb_io_capacity_max = 1600

innodb_read_io_threads = 4

innodb_read_io_threads = 8

innodb_write_io_threads = 2

innodb_write_io_threads = 8

innodb_flush_neighbors = 1

innodb_flush_neighbors = 0

# mariadb settings

[mariadb]

#thread-handling = pool-of-threads

#thread-pool-size= 20

#mysql --port=3307 --protocol=tcp

#extra-port=3307

#extra-max-connections=1

userstat = 0

key_cache_segments = 1

aria_group_commit = none

aria_group_commit_interval = 0

aria_log_file_size = 128M

aria_log_file_size = 1024M

aria_log_purge_type = immediate

aria_pagecache_buffer_size = 256M

aria_pagecache_buffer_size = 1024M

aria_sort_buffer_size = 256M

[mariadb-5.5]

innodb_file_format = Barracuda

innodb_file_per_table = 1

#ignore_db_dirs=

query_cache_strip_comments=0

innodb_read_ahead = linear

innodb_adaptive_flushing_method = estimate

innodb_flush_neighbor_pages = 1

innodb_stats_update_need_lock = 0

innodb_log_block_size = 512

log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

[mysqld_safe]

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

log-error=/var/log/mysqld.log

#nice = -5

open-files-limit = 8192

[mysqldump]

quick

max_allowed_packet = 128M

[myisamchk]

tmpdir=/home/mysqltmp

key_buffer = 1536M

sort_buffer = 384M

read_buffer = 384M

write_buffer = 384M

[mysqlhotcopy]

interactive-timeout

[mariadb-10.0]

innodb_file_format = Barracuda

innodb_file_per_table = 1

# 2 variables needed to switch from XtraDB to InnoDB plugins

#plugin-load=ha_innodb

#ignore_builtin_innodb

## MariaDB 10 only save and restore buffer pool pages

## warm up InnoDB buffer pool on server restarts

innodb_buffer_pool_dump_at_shutdown=1

#innodb_buffer_pool_dump_at_shutdown=1

innodb_buffer_pool_load_at_startup=1

#innodb_buffer_pool_load_at_startup=1

innodb_buffer_pool_populate=0

## Disabled settings

performance_schema=OFF

innodb_stats_on_metadata=OFF

innodb_sort_buffer_size=2M

innodb_online_alter_log_max_size=128M

query_cache_strip_comments=0

log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

[mariadb-10.3]

#innodb_file_format = Barracuda

innodb_default_row_format = dynamic

innodb_file_per_table = 1

## wsrep specific

# wsrep_on=OFF

# wsrep_provider

# wsrep_cluster_address

# binlog_format=ROW

# default_storage_engine=InnoDB

# innodb_autoinc_lock_mode=2

# innodb_doublewrite=1

# query_cache_size=0

# 2 variables needed to switch from XtraDB to InnoDB plugins

#plugin-load=ha_innodb

#ignore_builtin_innodb

## MariaDB 10 only save and restore buffer pool pages

## warm up InnoDB buffer pool on server restarts

innodb_buffer_pool_dump_at_shutdown=1

innodb_buffer_pool_load_at_startup=1

## Disabled settings

performance_schema=OFF

innodb_stats_on_metadata=OFF

innodb_sort_buffer_size=2M

innodb_online_alter_log_max_size=128M

query_cache_strip_comments=0

log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

# Defragmenting unused space on InnoDB tablespace

innodb_defragment=1

innodb_defragment_n_pages=7

innodb_defragment_stats_accuracy=0

innodb_defragment_fill_factor_n_recs=20

innodb_defragment_fill_factor=0.9

innodb_defragment_frequency=40

# page compression

# 10.1+ https://mariadb.com/kb/en/mariadb/compression/

#innodb_compression_algorithm=zlib

#innodb_use_fallocate=0

#innodb_use_mtflush=0

#innodb_mtflush_threads=4

Saved diffs

Original text

Open file

[client]
socket=/var/lib/mysql/mysql.sock

[mysql]
max_allowed_packet = 128M

[mysqld]
local-infile=0
ignore-db-dir=lost+found
character-set-server=utf8
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

#bind-address=127.0.0.1
# optimized my.cnf for MariaDB 5.5.x
# by eva2000
# centminmod.com

tmpdir=/home/mysqltmp

innodb=ON
#skip-federated
#skip-pbxt
#skip-pbxt_statistics
#skip-archive
#skip-name-resolve
#old_passwords
back_log = 1024
max_connections = 1500
key_buffer_size = 1024M
myisam_sort_buffer_size = 1024M
myisam_max_sort_file_size = 10240M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 2M
table_definition_cache = 10240
table_open_cache = 10240
thread_cache_size = 384
wait_timeout = 1800
connect_timeout = 10
tmp_table_size = 1536M
max_heap_table_size = 1536M
max_allowed_packet = 128M
#max_seeks_for_key = 4294967295
#group_concat_max_len = 1024
max_length_for_sort_data = 1024
net_buffer_length = 16384
max_connect_errors = 100000
concurrent_insert = 2
read_rnd_buffer_size = 512K
bulk_insert_buffer_size = 8M
# query_cache boost for MariaDB >10.1.2+
# https://community.centminmod.com/posts/30811/
query_cache_limit = 1536K
query_cache_size = 256M
query_cache_type = 1
query_cache_min_res_unit = 2K
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = InnoDB

log_warnings=1
slow_query_log=0
long_query_time=1
slow_query_log_file=/var/lib/mysql/slowq.log
log-error=/var/log/mysqld.log

# innodb settings
innodb_large_prefix=1
innodb_purge_threads=1
innodb_file_format = Barracuda
innodb_file_per_table = 1
innodb_open_files = 10000
innodb_data_file_path= ibdata1:10M:autoextend
innodb_buffer_pool_size = 12288M

## https://mariadb.com/kb/en/mariadb/xtradbinnodb-server-system-variables/#innodb_buffer_pool_instances
innodb_buffer_pool_instances=8

innodb_log_files_in_group = 2
innodb_log_file_size = 1024M
innodb_log_buffer_size = 64M
innodb_flush_log_at_trx_commit = 2
innodb_thread_concurrency = 0
innodb_lock_wait_timeout=50
innodb_flush_method = O_DIRECT
innodb_support_xa=1

# 200 * # DISKS
innodb_io_capacity = 800
innodb_io_capacity_max = 2000
innodb_read_io_threads = 4
innodb_write_io_threads = 2
innodb_flush_neighbors = 1

# mariadb settings
[mariadb]
#thread-handling = pool-of-threads
#thread-pool-size= 20
#mysql --port=3307 --protocol=tcp
#extra-port=3307
#extra-max-connections=1

userstat = 0
key_cache_segments = 1
aria_group_commit = none
aria_group_commit_interval = 0
aria_log_file_size = 128M
aria_log_purge_type = immediate 
aria_pagecache_buffer_size = 256M
aria_sort_buffer_size = 256M

[mariadb-5.5]
innodb_file_format = Barracuda
innodb_file_per_table = 1

#ignore_db_dirs=
query_cache_strip_comments=0

innodb_read_ahead = linear
innodb_adaptive_flushing_method = estimate
innodb_flush_neighbor_pages = 1
innodb_stats_update_need_lock = 0
innodb_log_block_size = 512

log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

[mysqld_safe] 
socket=/var/lib/mysql/mysql.sock
log-error=/var/log/mysqld.log
#nice = -5
open-files-limit = 8192

[mysqldump]
quick
max_allowed_packet = 128M

[myisamchk] 
tmpdir=/home/mysqltmp
key_buffer = 1536M 
sort_buffer = 384M
read_buffer = 384M
write_buffer = 384M

[mysqlhotcopy]
interactive-timeout

[mariadb-10.0]
innodb_file_format = Barracuda
innodb_file_per_table = 1

# 2 variables needed to switch from XtraDB to InnoDB plugins
#plugin-load=ha_innodb
#ignore_builtin_innodb

## MariaDB 10 only save and restore buffer pool pages
## warm up InnoDB buffer pool on server restarts
innodb_buffer_pool_dump_at_shutdown=1
innodb_buffer_pool_load_at_startup=1
innodb_buffer_pool_populate=0
## Disabled settings
performance_schema=OFF
innodb_stats_on_metadata=OFF
innodb_sort_buffer_size=2M
innodb_online_alter_log_max_size=128M
query_cache_strip_comments=0
log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

Changed text

Open file

[client]
socket=/var/lib/mysql/mysql.sock

[mysql]
max_allowed_packet = 128M

[mysqld]
ignore-db-dir=cmsetiofiotest
local-infile=0
ignore_db_dirs=lost+found
character-set-server=utf8
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

#bind-address=127.0.0.1
# optimized my.cnf for MariaDB 5.5.x
# by eva2000
# centminmod.com

tmpdir=/home/mysqltmp

innodb=ON
#skip-federated
##skip-pbxt
##skip-pbxt_statistics
#skip-archive
#skip-name-resolve
#old_passwords
back_log = 1024
max_connections = 1500
key_buffer_size = 1024M
myisam_sort_buffer_size = 1024M
myisam_max_sort_file_size = 10240M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 2M
table_definition_cache = 10240
table_open_cache = 10240
thread_cache_size = 384
wait_timeout = 1800
connect_timeout = 10
tmp_table_size = 1536M
max_heap_table_size = 1536M
max_allowed_packet = 128M
#max_seeks_for_key = 4294967295
#group_concat_max_len = 1024
max_length_for_sort_data = 1024
net_buffer_length = 16384
max_connect_errors = 100000
concurrent_insert = 2
read_rnd_buffer_size = 512K
bulk_insert_buffer_size = 8M
# query_cache boost for MariaDB >10.1.2+
# https://community.centminmod.com/posts/30811/
query_cache_limit = 1536K
query_cache_size = 256M
query_cache_type = 1
query_cache_min_res_unit = 2K
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = InnoDB

log_warnings=1
slow_query_log=0
long_query_time=1
slow_query_log_file=/var/lib/mysql/slowq.log
log-error=/var/log/mysqld.log

# innodb settings
innodb_purge_threads=1
innodb_file_per_table = 1
innodb_open_files = 10000
innodb_data_file_path= ibdata1:10M:autoextend
innodb_buffer_pool_size = 12288M

## https://mariadb.com/kb/en/mariadb/xtradbinnodb-server-system-variables/#innodb_buffer_pool_instances
innodb_buffer_pool_instances=12

innodb_log_files_in_group = 2
innodb_log_file_size = 1024M
innodb_log_buffer_size = 64M
innodb_flush_log_at_trx_commit = 2
#innodb_thread_concurrency = 36
innodb_lock_wait_timeout=50
innodb_flush_method = O_DIRECT

# 200 * # DISKS
innodb_io_capacity = 800
innodb_io_capacity_max = 1600
innodb_read_io_threads = 8
innodb_write_io_threads = 8
innodb_flush_neighbors = 0

# mariadb settings
[mariadb]
#thread-handling = pool-of-threads
#thread-pool-size= 20
#mysql --port=3307 --protocol=tcp
#extra-port=3307
#extra-max-connections=1

userstat = 0
key_cache_segments = 1
aria_group_commit = none
aria_group_commit_interval = 0
aria_log_file_size = 1024M
aria_log_purge_type = immediate 
aria_pagecache_buffer_size = 1024M
aria_sort_buffer_size = 256M

[mariadb-5.5]
innodb_file_per_table = 1

#ignore_db_dirs=
query_cache_strip_comments=0

innodb_read_ahead = linear
innodb_adaptive_flushing_method = estimate
innodb_flush_neighbor_pages = 1
innodb_stats_update_need_lock = 0
innodb_log_block_size = 512

log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

[mysqld_safe] 
socket=/var/lib/mysql/mysql.sock
log-error=/var/log/mysqld.log
#nice = -5
open-files-limit = 8192

[mysqldump]
quick
max_allowed_packet = 128M

[myisamchk] 
tmpdir=/home/mysqltmp
key_buffer = 1536M 
sort_buffer = 384M
read_buffer = 384M
write_buffer = 384M

[mysqlhotcopy]
interactive-timeout

[mariadb-10.0]
innodb_file_per_table = 1

# 2 variables needed to switch from XtraDB to InnoDB plugins
#plugin-load=ha_innodb
#ignore_builtin_innodb

## MariaDB 10 only save and restore buffer pool pages
## warm up InnoDB buffer pool on server restarts
#innodb_buffer_pool_dump_at_shutdown=1
#innodb_buffer_pool_load_at_startup=1
innodb_buffer_pool_populate=0
## Disabled settings
performance_schema=OFF
innodb_stats_on_metadata=OFF
innodb_sort_buffer_size=2M
innodb_online_alter_log_max_size=128M
query_cache_strip_comments=0
log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

[mariadb-10.3]
#innodb_file_format = Barracuda
innodb_default_row_format = dynamic
innodb_file_per_table = 1

## wsrep specific
# wsrep_on=OFF
# wsrep_provider
# wsrep_cluster_address
# binlog_format=ROW
# default_storage_engine=InnoDB
# innodb_autoinc_lock_mode=2
# innodb_doublewrite=1
# query_cache_size=0

# 2 variables needed to switch from XtraDB to InnoDB plugins
#plugin-load=ha_innodb
#ignore_builtin_innodb

## MariaDB 10 only save and restore buffer pool pages
## warm up InnoDB buffer pool on server restarts
innodb_buffer_pool_dump_at_shutdown=1
innodb_buffer_pool_load_at_startup=1
## Disabled settings
performance_schema=OFF
innodb_stats_on_metadata=OFF
innodb_sort_buffer_size=2M
innodb_online_alter_log_max_size=128M
query_cache_strip_comments=0
log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

# Defragmenting unused space on InnoDB tablespace
innodb_defragment=1
innodb_defragment_n_pages=7
innodb_defragment_stats_accuracy=0
innodb_defragment_fill_factor_n_recs=20
innodb_defragment_fill_factor=0.9
innodb_defragment_frequency=40

# page compression
# 10.1+ https://mariadb.com/kb/en/mariadb/compression/
#innodb_compression_algorithm=zlib
#innodb_use_fallocate=0
#innodb_use_mtflush=0
#innodb_mtflush_threads=4