时间:2021-05-22
复制代码 代码如下:
# cat doallslave.sh
#!/bin/sh
#code by scpman
#mail:scpman@live.com
#blog:http://
#name:"doallslave.sh"
helpinfo()
{
echo -e '\t\thelp 查看帮助信息'
echo -e '\t\t自动做allslave从库脚本使用帮助'
echo -e '\t\tslavename 只能是xxx_xxx这种命令例如:zq2013_test1'
echo -e '\t\t添加一个新从库 三个参数addslave slavename ip mysql.tar-name rootpasswd'
echo -e '\t\t例子: addslave slavename 10.0.88.88 mysql.xxx.tar passwd '
echo -e '\t\t删除一个从库 三个参数 delslave slavename '
echo -e '\t\t例子: delslave slavename'
}
#如果用户没有输入参数(或者输入错误的参数),或者输入的参数为help,则显示帮助信息,并退出。
if [ -z "$1" -o "$1" = "help" ]
then
helpinfo
exit
fi
mulu_create()
{
if [ -d $1 ]
then
echo "$1 is have";
else
mkdir -p $1;
echo "create $1 ok!"
fi
}
check_mycnf()
{
temp1=`tail -n 1 /etc/my.cnf |grep "server_id"`;
if [ -z "$temp1" ]
then
sed -i "" '$d' /etc/my.cnf
check_mycnf
else
echo "/etc/my.cnf符合规范";
fi
}
fuc_addslave()
{
if [ -n "$1" -a -n "$2" -a -n "$3" -a -n "$4" ]
then
slavename=$1
masterip=$2
bao_path=$3
passwd=$4
else
echo "1 2 3 4 is null!shell exit now"
helpinfo
exit
fi
#检查my.cnf是否正确
check_mycnf
echo "开始创建数据包存放目录!"
sleep 1
mulu_create "/usr/doslave/${slavename}/"
mulu_create "/usr/db_backups/${slavename}_mysql_backup/"
mulu_create "/usr/mysql_backup/${slavename}_mysql_backup/"
mulu_create "/usr/mysql_backup_temp/${slavename}_mysql_backup/"
tar -zxvf $bao_path -C /usr/doslave/${slavename}/;
rm -rf /usr/db_backups/${slavename}_mysql_backup/*;
mv /usr/doslave/${slavename}/usr/dlm_db/mysql/* /usr/db_backups/${slavename}_mysql_backup/;
chown -R mysql:mysql /usr/db_backups/${slavename}_mysql_backup/;
echo "数据放置完成!开始生成配置文件"
mulu_create "/usr/doslave/confbak"
cp /etc/my.cnf /usr/doslave/confbak/my.cnf_`date +%Y%m%d%H%M%S`;
cp /usr/mysql_backup/dblist /usr/doslave/confbak/dblist_`date +%Y%m%d%H%M%S`;
#######################my.cnf#############
tempconf="/usr/doslave/${slavename}/mycnf.temp"
tail -n 6 /etc/my.cnf > $tempconf;
sleep 2
old_mysqld="`cat $tempconf |grep "mysqld" | sed -e "s/\[mysqld//;s/\]//;"`"
old_port="`cat $tempconf | grep 'port'|awk '{print $3}'`"
old_db_name="`cat $tempconf | grep "pid-file" | awk -F'/' '{print $4 }'|awk -F'_' '{print $1 "_" $2}'`"
old_server_id="`cat $tempconf | grep "server_id"|awk '{print $3}'`"
new_mysqld="`expr ${old_mysqld} + 1`"
new_port="`expr ${old_port} + 1`"
new_db_name="$slavename"
new_server_id=`echo $masterip |awk -F. '{print $3$4"9"}'`
old_mysqld="`echo $old_mysqld`"
old_port="`echo $old_port`"
old_db_name="`echo $old_db_name`"
old_server_id="`echo $old_server_id`"
sed -i "" "s/$old_mysqld/$new_mysqld/g;s/$old_port/$new_port/g;s/$old_db_name/$new_db_name/g;s/$old_server_id/$new_server_id/g;"$tempconf;
#cat $tempconf
#echo '--->'
sleep 2
echo "" >> /etc/my.cnf;
cat $tempconf >> /etc/my.cnf
echo "mysqld${new_mysqld}" >> /usr/mysql_backup/dblist;
###############################################
echo "my.cnf 和dblist已经修改完成!"
/usr/local/bin/mysqld_multi start $new_mysqld
sleep 1
BIN=`cat /usr/db_backups/${slavename}_mysql_backup/pos_mysql|awk '{print $1}'`;
POS=`cat /usr/db_backups/${slavename}_mysql_backup/pos_mysql|awk '{print $2}'`;
#echo $passwd
echo $BIN
echo $POS
echo /usr/local/bin/mysql -uroot -p$passwd --socket=/tmp/mysql_${new_db_name}.sock
sleep 2
/usr/local/bin/mysql -uroot -p$passwd --socket=/tmp/mysql_${new_db_name}.sock <<FFF
stop slave;
reset slave;
CHANGE MASTER TO MASTER_HOST="$masterip", MASTER_USER='slaveuser',MASTER_PASSWORD='slave123213', MASTER_LOG_FILE="$BIN",MASTER_LOG_POS=$POS;
start slave;
FFF
rm -rf /usr/doslave/${slavename}/;
clear
/usr/local/bin/mysql -uroot -p$passwd --socket=/tmp/mysql_${new_db_name}.sock -e "show slave status\G"
echo "服务器: ${masterip} 的从库完成!请刷新并查看php从库监控"
}
fuc_delslave()
{
if [ -n "$1" ]
then
nousedbname=$1
else
echo "slavename is null!shell exit now"
helpinfo
exit
fi
if [ -d /usr/db_backups/${nousedbname}_mysql_backup ]
then
echo "/usr/db_backups/${nousedbname}_mysql_backup 存在!"
else
echo "/usr/db_backups/${nousedbname}_mysql_backup这个目录不存在,请确认您的输入是否正确,脚本退出!"
exit;
fi
del_id="`grep -B1 "$nousedbname" /etc/my.cnf|grep mysqld|sed -e "s/\[//;s/\]//";`"
stop_id="`echo $del_id|sed -e "s/mysqld//;"`"
echo $del_id
echo $stop_id
/usr/local/bin/mysqld_multi stop $stop_id
rm -rf /usr/db_backups/${nousedbname}_mysql_backup;
sed -i '' "/$del_id/d" /usr/mysql_backup/dblist
sed -i '' "/$del_id/d" /etc/my.cnf
sed -i '' "/$nousedbname/d" /etc/my.cnf
echo "已经删除,请刷新从库监控"
}
if [ "$1" = "addslave" ]
then
echo '添加新从库'
sleep 3
fuc_addslave $2 $3 $4 $5
elif [ "$1" = "delslave" ]
then
echo '删除'
fuc_delslave $2
else
echo $1 此参数是非法的
helpinfo
exit
fi
声明:本页内容来源网络,仅供用户参考;我单位不保证亦不表示资料全面及准确无误,也不保证亦不表示这些资料为最新信息,如因任何原因,本网内容或者用户因倚赖本网内容造成任何损失或损害,我单位将不会负任何法律责任。如涉及版权问题,请提交至online#300.cn邮箱联系删除。
因使用源码安装的MySQL5.7.28多实例,在导入数据库时会出现问题,所以重新研究使用mysql_multi的方法来管理多实例,经过测试环境验证之后,在各方面
对于自动化运维,诸如备份恢复之类的,DBA经常需要将SQL语句封装到shell脚本。本文描述了在Linux环境下mysql数据库中,shell脚本下调用sql语
备份数据库的shell脚本一复制代码代码如下:#!/bin/bash#指定运行的脚本shell#运行脚本要给用户执行权限bakdir=/backupmonth=
本文实例讲述了php管理nginx虚拟主机shell脚本,分享给大家供大家参考。具体分析如下:使用php作为shell脚本是一件很方便的事情。理所当然,我们可以
Linux在Shell脚本中使用函数实例详解Shell的函数Shell程序也支持函数。函数能完成一特定的功能,可以重复调用这个函数。函数格式如下:函数名(){函