重启fastdfs脚本，前端lvs

 

功能：

 

当前端tracker出现宕机、僵尸进程，以及网络丢包严重时，自动注销掉storage.conf里的tracker服务器IP列表，并重启storage进程。

 

写入crontab里，每5分钟执行一次脚本。

 

===============================================================================================

 

#!/bin/bash

 

. /root/.bash_profile

 

 

ip_tracker1=192.168.8.90

ip_tracker2=192.168.8.91

 

 

count1=`ping $ip_tracker1 -c 10 | grep 'received' |awk -F ',' '{print $2}' |awk '{print $1}'`

count2=`ping $ip_tracker2 -c 10 | grep 'received' |awk -F ',' '{print $2}' |awk '{print $1}'`

 

 

telnet $ip_tracker1 22122 | grep -w 'Connected' > /dev/null

 

#如果端口存活并且ping 10个包，保证有7个以上接收，代表正常。否则代表失败。

 

 

if [ $? = "0" ] && [ "$count1" -gt 7 ];then

echo "#########################################" > /root/running.log

date >> /root/running.log

echo "Tracker server $ip_tracker1 is OK." >> /root/running.log

else

sed -i "s/tracker_server=$ip_tracker1/##&/" /etc/fdfs/storage.conf

echo "#########################################" >> /root/running.log

date >> /root/running.log

echo "Tracker server $ip_tracker1 is Critical!" >> /root/running.log

fi

 

 

telnet $ip_tracker2 22122 | grep -w 'Connected' > /dev/null

 

 

if [ $? = "0" ] && [ "$count2" -gt 7 ];then

echo "#########################################" >> /root/running.log

date >> /root/running.log

echo "Tracker server $ip_tracker2 is OK!" >> /root/running.log

else

sed -i "s/tracker_server=$ip_tracker2/##&/" /etc/fdfs/storage.conf

echo "#########################################" >> /root/running.log

date >> /root/running.log

echo "Tracker server $ip_tracker2 is Critical!" >> /root/running.log

fi

 

#记录下运行日志，如果出现有故障tracker，自动重启storage进程。

#并注销掉crontab计划任务，避免重复执行重启storage进程。

 

 

grep "Critical" /root/running.log

 

 

if [ $? = "0" ];then

/etc/init.d/fdfs_storaged stop

sleep 3

/etc/init.d/fdfs_storaged start

sed -i '/restart/s/*\/5/##&/' /etc/crontab

fi