use perl, bash, mysql, rrdtools to monitor Linux Server
monitor bandwidth , cpu load average , cpu usage, tcp connection, memory usage...
if service down will restart service ( apache, mysql, tomcat, jboss, resin...)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001345s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.075242s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000880s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001173s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000978s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003143s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000806s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003556s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014784s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001076s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 278703 [ RunTime:0.026100s ]
