报了一些变量的错误，类似于"time_zone" 等错误
解决：
[root@iz8vbilqy0q9v8tds55bqzz conf.d]# vi /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
max_allowed_packet = 1024M #新增这项解决。
[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
原因：
MySQL根据配置文件会限制server接受的数据包大小。
有时候大的插入和更新会被max_allowed_packet 参数限制掉，导致失败。 改大些就应该没问题了。。
mysql source 恢复 sql数据time_zone报错 已解决
原文：http://www.cnblogs.com/liuquan/p/7308174.html