错误描述：打开cacti监控，发现已经运行的转码机不产生流量，即cacti监控所显示已经运行的转码机为宕机，查看cacti日志发现error，查资料解决此问题、
cacit监控无数据了，查看日志：
| 2014年05月03日 09:05:51 AM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'145', SQL:"INSERT INTO `cacti`.`syslog_hosts` (host) (SELECT DISTINCT host FROM `cacti`.`syslog_incoming`) ON DUPLICATE KEY UPDATE host=VALUES(host), last_updated=NOW()' |
| 2014年05月03日 09:05:51 AM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'145', SQL:"DELETE FROM `cacti`.`syslog_incoming` WHERE status=90' |
| 2014年05月03日 09:05:51 AM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'145', SQL:"INSERT INTO `cacti`.`syslog` (logtime, priority_id, facility_id, host_id, message) SELECT TIMESTAMP(`date`, `time`), priority_id, facility_id, host_id, message FROM (SELECT date, time, priority_id, facility_id, host_id, message FROM syslog_incoming AS si INNER JOIN syslog_facilities AS sf ON sf.facility=si.facility INNER JOIN syslog_priorities AS sp ON sp.priority=si.priority INNER JOIN syslog_hosts AS sh ON sh.host=si.host WHERE status=90) AS merge' |
查mysql日志：
140504 12:20:45 [ERROR] /usr/libexec/mysqld: Table './cacti/syslog_incoming' is marked as crashed and should be repaired
140504 12:20:45 [ERROR] /usr/libexec/mysqld: Table './cacti/syslog_incoming' is marked as crashed and should be repaired
140504 12:22:00 [ERROR] /usr/libexec/mysqld: Table './cacti/syslog_incoming' is marked as crashed and should be repaired
140504 12:22:00 [ERROR] /usr/libexec/mysqld: Table './cacti/syslog_incoming' is marked as crashed and should be repaired
#连接损坏表所在的数据库：
|
#!/bin/bash
#This script used by repair tables
mysql_host=localhost
mysql_user=root
database=cacti
tables=$(mysql -h$mysql_host -u$mysql_user $database -A -Bse "show tables")
for arg in $tables
do
check_status=$(mysql -h$mysql_host -u$mysql_user $database -A -Bse "check table $arg" | awk '{ print $4 }')
if [ "$check_status" = "OK" ]
then
echo "$arg is ok"
else
echo $(mysql -h$mysql_host -u$mysql_user $database -A -Bse "repair table $arg")
fi
echo $(mysql -h$mysql_host -u$mysql_user $database -A -Bse "optimize table $arg")
done
