I’m trying to login to my percona installation to add a new database. - Ubuntu 16.04. The system is running fine, and my current website seems to work fine so the problem is to login from termian using mysql --host=localhost --user=root --password
I then get the error: Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2)
Trying to fint the socket of mysql: sudo find / -type s gives: /run/mysqld/mysqld.sock
so i try ~# whereis mysql : mysql: /usr/bin/mysql /usr/lib/mysql /etc/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz
the /etc/mysql/my.conf looks like:
# The Percona Server 5.7 configuration file.
#
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
# Please make any edits and changes to the appropriate sectional files
# included below.
#
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/percona-server.conf.d/
the /etc/mysql/conf.d/ contains two files:
mysql.cnf looks like
[mysql]
and mysqldump.cnf looks like
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
the etc/mysql/percona-server.conf.d/ contains 4 files
mysqld.cnf looks like
# Generated by Percona Configuration Wizard ([url]http://tools.percona.com/[/url]) version REL5-20120208
# Configuration name ***** generated for ********************** at 2016-10-18 19:09:33
[mysql]
# CLIENT #
bind-address = 127.0.0.1
port = 3306
socket = /var/lib/mysql/mysql.sock
[mysqld]
# GENERAL #
user = mysql
default-storage-engine = InnoDB
socket = /var/lib/mysql/mysql.sock
pid-file = /var/lib/mysql/mysql.pid
# MyISAM #
key-buffer-size = 32M
# SAFETY #
max-allowed-packet = 16M
max-connect-errors = 1000000
skip-name-resolve
sql-mode = STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ONLY_FULL_GROUP_BY
sysdate-is-now = 1
innodb = FORCE
# DATA STORAGE #
datadir = /var/lib/mysql/
# BINARY LOGGING #
log-bin = /var/lib/mysql/mysql-bin
expire-logs-days = 14
sync-binlog = 1
server-id = 12345
# CACHES AND LIMITS #
tmp-table-size = 32M
max-heap-table-size = 32M
query-cache-type = 0
query-cache-size = 0
max-connections = 500
thread-cache-size = 50
open-files-limit = 65535
table-definition-cache = 4096
table-open-cache = 32M
# 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
# LOGGING #
log-error = /var/lib/mysql/mysql-error.log
log-queries-not-using-indexes = 1
slow-query-log = 1
slow-query-log-file = /var/lib/mysql/mysql-slow.log
the mysqld.cnf.backup looks like
# Generated by Percona Configuration Wizard ([url]http://tools.percona.com/[/url]) version REL5-20120208
# Configuration name ******* generated for **************** at 2016-10-18 19:09:33
[mysql]
# CLIENT #
bind-address = 127.0.0.1
port = 3306
socket = /var/lib/mysql/mysql.sock
[mysqld]
# GENERAL #
user = mysql
default-storage-engine = InnoDB
socket = /var/lib/mysql/mysql.sock
pid-file = /var/lib/mysql/mysql.pid
# MyISAM #
key-buffer-size = 32M
# SAFETY #
max-allowed-packet = 16M
max-connect-errors = 1000000
skip-name-resolve
sql-mode = STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ONLY_FULL_GROUP_BY
sysdate-is-now = 1
innodb = FORCE
# DATA STORAGE #
datadir = /var/lib/mysql/
# BINARY LOGGING #
log-bin = /var/lib/mysql/mysql-bin
expire-logs-days = 14
sync-binlog = 1
server-id = 12345
# CACHES AND LIMITS #
tmp-table-size = 32M
max-heap-table-size = 32M
query-cache-type = 0
query-cache-size = 0
max-connections = 500
thread-cache-size = 50
open-files-limit = 65535
table-definition-cache = 4096
table-open-cache = 32M
# 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
# LOGGING #
log-error = /var/lib/mysql/mysql-error.log
log-queries-not-using-indexes = 1
slow-query-log = 1
slow-query-log-file = /var/lib/mysql/mysql-slow.log
the mysqld.cnf.dpkg-dist looks like:
#
# The Percona Server 5.7 configuration file.
#
# 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
# [url]http://dev.mysql.com/doc/mysql/en/server-system-variables.html[/url]
[mysqld]
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
explicit_defaults_for_timestamp
log-error = /var/log/mysql/error.log
# Recommended in standard MySQL setup
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_ALL_TABLES
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
the mysqld_safe.cnf looks like:
#
# The Percona Server 5.7 configuration file.
#
# 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
# [url]http://dev.mysql.com/doc/mysql/en/server-system-variables.html[/url]
[mysqld_safe]
thp-setting=never
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
nice = 0
It seems to me there is a misconfiguration causing the " ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2) " error, giving wrong path to the mysql sock. This server is running a live site and I’m afraid or doing too much testing, possible making the site going down.
I have attached screen dump of file structure /etc/mysql It seems tro me that there is required o clean up a little bit here. Anyone that can fugure out what’s worng ?
