讓tomcat Applications 可以自己reload 不用手動restart 或reload

新增 context.xml 檔案到
~/apache-tomcat-7.0.70/webapps/testapp/app/META-INF/context.xml

<Context reloadable="true">
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>WEB-INF/data</WatchedResource>
</Context>

WEB-INF/data  下的檔案有變動，就會自己reload

mysql 修改tmpdir (ubuntu)

1. vi /etc/mysql/my.conf
   tmpdir = /mnt/md0/mysqltmp

2. mkdir /mnt/md0/mysqltmp
   chown mysql:mysql /mnt/md0/mysqltmp
   chmod 1777 /mnt/md0/mysqltmp

3. vi /etc/apparmor.d/usr.sbin.mysqld
   /mnt/md0/mysqltmp/* rw,

4. /etc/init.d/apparmor restart
   /etc/init.d/mysql restart