This is not a tutorial about how to set up mysql replication. You can find all the details about how to set up mysql replication in the official mysql documentation. This is just a script that can be used to monitor a MySQL replication setup. A MySQL replication setup consists of a master server and a slave server. On the slave server there are two threads that run continuously, one is the I/O thread that fetches changes that occurred on the master server and one is the SQL thread that tries to run the queries that were executed on the master server.
Most of the web sites use some form of database from text files to MySQL, PostgreSQL, Oracle, MSSQL , Sqlite and others.
At some point as a webmaster you may have to change the server hosting a website and If you have to transfer a mysql database from a server to another you have a various options. Not all of them can be used on any servers and each has it's advantages and disadvantages.
This is a list of methods alog with a description and howto for each method as well as advices about when to use each method. Continue reading Three methods to transfer a mysql database