How to make faster queries on remote mysql server - php

Question

I have 2 servers on OVH, they are on different datacenter in the Europe (SBG1 and GRA1). My controlled ping is 10ms.
My websites run many insert and read queries.
When I try my local mysql server it is very fast but when I use the remote mysql server the queries run is delayed.
My Remote Mysql Configuration
# Percona Server template configuration
[mysqld]
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
pid-file=/var/run/mysqld/mysqld.pid
skip-name-resolve
bind-address = 5.196.77.XXX
# skip-networking
sql-mode = 'NO_AUTO_CREATE_USER'
explicit_defaults_for_timestamp = 1
# MyISAM #
key_buffer_size = 2G
# SAFETY #
max_allowed_packet = 10G
# CACHES AND LIMITS #
tmp_table_size = 32M
max_heap_table_size = 32M
query_cache_type = 1
query_cache_size = 2M
query_cache_limit = 1M
join_buffer_size = 6M
max_connections = 600
thread_cache_size = 100
open_files_limit = 65535
table_definition_cache = 4096
table_open_cache = 4096
# INNODB #
innodb_flush_method = O_DIRECT
innodb_log_files_in_group = 2
innodb_log_file_size = 512M
innodb_flush_log_at_trx_commit = 1
innodb_file_per_table = 1
innodb_buffer_pool_size = 20G
innodb_data_file_path =ibdata1:20M:autoextend
# LOGGING #
log_error = /var/log/mysql/mysql-error.log
log-queries-not-using-indexes = 1
slow_query_log = 1
long_query_time = 3
slow_query_log_file = /var/log/mysql/mysql-slow.log
I don't know how can i connect local connection each servers.
Do i have to use vRack? (I have but i don't know have can i use it)
OR
Do i have to move my servers to same location?
What should i do

Answer 1

Replication enables data from one MySQL database server (the master)
to be copied to one or more MySQL database servers (the slaves).
Replication is asynchronous by default; slaves do not need to be
connected permanently to receive updates from the master.
If I understood you have a server S-A width database D-A and a server B with a database D-B and a local Server S-Local with database D-Local.
You can replicate the D-A and D-B databaseson your local Server S-Local. So your query will be faster.
I'm not sure if there is communication between S-A and S-B, but you can even replicate database D-A on Server S-B and database D-B on Server S-A.
My team has to query a distant server. It is very slow. With replication, our query are connected to a local replicated server and it is very useful