chorao157
By:
chorao157

Server is slow acessing via domain and via ip quite fast

August 10, 2016 910 views
Apache PHP Ubuntu

My server is too slow ... I am using 2 core and 2gb ram

domain: ads-max.com

Traffic/day : 500K daily

htop
http://image.prntscr.com/image/c895517b20584c219587bbe911011ffa.png

I should go to a more powerful server ?

Mycnf.conf

#
# 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.
[client]
port        = 3306
socket      = /var/run/mysqld/mysqld.sock

# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[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      = 16M
max_allowed_packet  = 16M
thread_stack        = 192K
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover         = BACKUP

#table_cache            = 64

#
# * Query Cache Configuration
#

#
# * 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

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

query_cache_size=100M
query_cache_min_res_unit=1K
query_cache_limit=2M

max_connections=90
max_user_connections=30

thread_cache_size=100
table_open_cache=1600
table_definition_cache=200
open-files-limit= 750
wait_timeout=150
interactive_timeout=150
key_buffer_size=300M 
join_buffer_size=1M

max_heap_table_size=200M
tmp_table_size=200M

# Pour le thread_concurrency essayez avec le nombre de CPU x 2
innodb_file_per_table
thread_concurrency=4
expire_logs_days = 3
innodb_buffer_pool_size=35000


[mysqldump]
quick
quote-names
max_allowed_packet  = 16M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
key_buffer      = 16M

#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/

2 Answers

Hi @chorao157,

It seems like your MySQL server is trying to do a reverse lookup or a hostname lookup on connection. This is usually only required if your MySQL grants include 'hostnames' (for example you setup your MySQL grants with something like this:

GRANT ALL ON mydb.* TO 'myuser'@'blah.com'

Instead of something like this:

GRANT ALL ON mydb.* TO 'myuser'@'10.10.10.5'

If you didn't, then you could simply disable the DNS lookups (start the server with '--skip-name-resolve'). If you did, there're a few options you have to speed up the process (such as deploying a dnscache with DNSMasq, or perhaps using the hosts file?). Let us know if you need help with either!

i added --skip-name-resolve to my.cnf but i dont see much result...

which conf i put in host files?

ads-max.com IP_DROPLET

?

and how i can make a right config on mysql?

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