XtraBackup备份时出现的socket报错解决
今天为公司新建的uat数据库使用XtraBackup备份时,出现了报错,将解决方法整理、做一下备忘:
服务器系统:
[root@uat-mysql-master tmp]# cat /etc/RedHat-release
CentOS Linux release 7.3.1611 (Core)
mysql版本号:
mysql>
select
version();
+
----------------+
| version() |
+
----------------+
| 5.5.47-cll-lve |
+
----------------+
1 row
in
set
(0.00 sec)
报错如下:
[root@uat-mysql-master tmp]# innobackupex
--defaults-file=/etc/my.cnf --user=backup --password=****** --stream=tar /home/backup/ | gzip >/home/backup/`date +%F_%H-%M-%S`.tar.gz
171120 17:10:42 innobackupex: Starting the backup operation
IMPORTANT: Please
check
that the backup run completes successfully.
At
the
end
of
a successful backup run innobackupex
prints
"completed OK!"
.
171120 17:10:42 version_check Connecting
to
MySQL server
with
DSN
'dbi:mysql:;mysql_read_default_group=xtrabackup'
as
'backup'
(using
password
: YES).
Failed
to
connect
to
MySQL server: DBI
connect
(
';mysql_read_default_group=xtrabackup'
,
'backup'
,...) failed: Can
't connect to local MySQL server through socket '
/var/lib/mysql/mysql.sock
' (2) at - line 1314.
171120 17:10:42 Connecting to MySQL server host: localhost, user: backup, password: set, port: not set, socket: not set
Failed to connect to MySQL server: Can'
t
connect
to
local
MySQL server through socket
'/var/lib/mysql/mysql.sock'
(2).
解决办法:
在命令行中添加
--host=127.0.0.1
参数;
备注:网上有的说,通过
# find / -name "mysql.sock"
查到socket参数,然后在配置文件中修改,但测试后,不一定能解决问题。
更多XtraBackup相关教程见以下内容:
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