mysql怎么自动添加分区

        本篇内容介绍了“mysql怎么自动增加分区”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
 
#!/bin/bash
PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"
LANG="en_US.UTF-8"
IFS=":"
 
add_partition(){
 
        dbserver="$1"
        dbport="$2"
        dbuser='root'
        dbpwd='test@123456'
        dbname="$3"
        t_name=$4 # 分区表的表名称
 
        sqlcmd=" SELECT REPLACE(partition_name,'p','')  FROM INFORMATION_SCHEMA.PARTITIONS   WHERE table_name='$t_name' and  TABLE_SCHEMA = '$dbname' ORDER BY partition_ordinal_position DESC LIMIT 1" # 获取最大的分区日期
        max_partition=`mysql  -h$dbserver  -u$dbuser  -p$dbpwd --port=$dbport --database $dbname -e"$sqlcmd" | sed  1d `
 
        sqlcmd="select date_add(date_format('${max_partition}01','%Y-%m-%d'),INTERVAL 2 month),replace(left(date_add(date_format('${max_partition}01','%Y-%m-%d'),INTERVAL 1 month),7),'-','')"
 
        t_mid=`mysql  -h$dbserver  -u$dbuser  -p$dbpwd --port=$dbport --database $dbname  -e"$sqlcmd" | sed 1d`
 
        p_time=`echo $t_mid | awk '{print $1}'`
        p_name=`echo $t_mid | awk '{print $2}'`
 
        sqlcmd="ALTER TABLE $t_name ADD PARTITION (PARTITION p${p_name} VALUES LESS THAN (to_days('${p_time}')));  "
 
        mysql  -h$dbserver  -u$dbuser  -p$dbpwd --port=$dbport --database $dbname  -e"$sqlcmd"
 
        if [ $? -ne 0 ];then
                mess="dbserver:$dbserver;dbport:$dbport;dbname:$dbname;命令:$sqlcmd  执行失败"
                # 邮件报警 分区增加失败
                exit 0
 
        else
                mess="dbserver:$dbserver;dbport:$dbport;dbname:$dbname; 命令:$sqlcmd  执行成功"
        fi;
 
}
 
 
serverlist=('192.168.1.11:3306:test:test' '192.168.1.11:3307:test:test' )
 
i=0
let len_serverlist=${#serverlist[@]}-1
while [[ $i -le $len_serverlist ]];do
        t_list=(${serverlist[i]})
        echo ${t_list[0]} ${t_list[1]} ${t_list[2]} ${t_list[3]}
        add_partition ${t_list[0]}  ${t_list[1]} ${t_list[2]} ${t_list[3]}
        let i++
done
 
 
# 邮件告警分区添加正常
“mysql怎么自动增加分区”的内容就介绍到这里了，感谢大家的阅读。