最近查看mysql数据库服务器日志,老发现有表损坏的错误日志,比如:120724 7:30:48 [ERROR] /data/soft/mysql/libexec/mysqld: Table './blog/wp_links' is marked as crashed and last (automatic?) repair failed 手动修复了表后正常了,没过几天又发现出现错误。于是就写了个脚本来自动修复。是根据一定时间检测一次日志,如果有这样的错误记录时,就对出错的表进行修复来达到自动修复的目的,为了防止日志中错误记录的重复执行,每次检测完日志后特将日志文件清空。此类脚本的方法其实有很多,只不过这是其中一种而已,也好久没有写脚本了,写的乱七八槽的,还望有错误之处大家提出来,多多指教。
#!/bin/sh DB_USER="root" DB_PASS="123456" DB_NAME="blog" LOG_PATH="/data/db/errlog.log" TIME=`date +%Y-%m-%d" "%H:%M:%S` TABLES=`/usr/bin/awk '/'"repair failed"'/ {print $6}' $LOG_PATH | sort -k1n | uniq -c | awk -F "'" '{print $2}' | awk -F '/' '{print $3}'` if [ -n "$TABLES" ] then for i in `/usr/bin/awk '/'"repair failed"'/ {print $6}' $LOG_PATH | sort -k1n | uniq -c | awk -F "'" '{print $2}' | awk -F '/' '{print $3}'` do /data/soft/mysql/bin/mysql -u$DB_USER -p$DB_PASS $DB_NAME -e "repair TABLE $i" > repair_$i if grep "OK" repair_$i >/dev/null then echo "$TIME repair TABLES $i successful!" else echo "$TIME repair TABLES $i Failed!" fi rm -rf repair_$i done else echo "There is no need to repair the table!" fi :>$LOG_PATH
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