How to batch check tables and repair and optimize

本篇文章给大家带来的内容是关于如何批量检查表并进行repair,optimize，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。

以下是shell的参考代码：

#!/bin/bash

host_name=192.168.0.123
user_name=xiaomo
user_pwd=my_pwd
database=my_db_name
need_optmize_table=true
tables=$(mysql -h$host_name -u$user_name -p$user_pwd $database -A -Bse "show tables")

for table_name in $tables
do
  check_result=$(mysql -h$host_name -u$user_name -p$user_pwd $database -A -Bse "check table $table_name" | awk '{ print $4 }')
  if [ "$check_result" = "OK" ]
  then
    echo "It's no need to repair table $table_name"
  else
    echo $(mysql -h$host_name -u$user_name -p$user_pwd $database -A -Bse "repair table $table_name")
  fi

  # 优化表,可提高性能
  if [ $need_optmize_table = true ]
  then
    echo $(mysql -h$host_name -u$user_name -p$user_pwd $database -A -Bse "optimize table $table_name")
  fi
done

也可以使用mysqlcheck命令，此方法可以在检查表并自动修复损坏的表，不过该过程比较耗时。

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