SVNAnt does not work
If using SVNAnt, make sure subversion is installed on the system.
In case, there is a way to use SVNAnt without it please let me know.
Invoke a servlet from a servlet
There are couple of ways to do so:
- Send a HTTP request
To invoke a servlet that requires authentication, in addition to creating the URL object, you need to pass authentication cookies too.
URL url = new URL("http://blah");
URLConnection con = url.openConnection();
con.setRequestProperty("Cookie", request.getHeader("Cookie"));
con.connect();
- RequestDispatcher
- Send a redirect
GMail down
It has been more than an hour or so, I am unable to access gmail. I get the following error.
I wonder what made this happen!
Update: Found the problem what caused this mess on gmail’s blog
MySQL database backup and restore
1. Create Database Backup:
You can use mysqldump to create a simple backup of your database using the following syntax.
mysqldump -u [username] -p [password] [databasename] > [backupfile.sql]
- [username] – this is your database username
- [password] – this is the password for your database
- [databasename] – the name of your database
- [backupfile.sql] – the file to which the backup should be written.
You can also ask mysqldump to add a drop table command before every create command by using the option –add-drop-table. This option is useful if you would like to create a backup file which can rewrite an existing database without having to delete the older database manually first.
mysqldump --add-drop-table -u [username] -p [password] [databasename] > [backupfile.sql]
If you want to back up certain tables
mysqldump -u [username] -p [password] [databasename] [table1] [tableN]> [backupfile.sql]
If you want to back up multiple databases
mysqldump -u [username] -p [password] [databasename1] [databasenameN] > [backupfile.sql]
Or want to back up all databases
mysqldump -u [username] -p [password] --databases-all > [backupfile.sql]
2. Restore from database backup
Restore a particular database
mysql -u [username] -p [password] [database_to_restore] < [backupfile]
Restore all databases
mysql -u [username] -p [password] < [backupfile]
