As promised, here is short example of the Daemon in operation.
Content
Tagged: mysql
The problem that this program was designed to solve is a rapidly changing MySQL table in use by a high-traffic website.
For instance, stock quotes on the front page of a bank’s or investments firm’s site.
The data is constantly updated by a service on the backend, and is referred to by some ajax widget or by [...]
Don’t ask me why scripting in batch is still necessary on the verge of the year 2010, however, what can you do when some clients still use Windows to host their MySQL servers…
REM Simple MySQL backup script per database
@echo off
REM Set some variables
set mysqlcmd="C:\Program Files\MySQL\MySQL Server 5.0\bin\mysql.exe"
set mysqlpwd=amazingsecretsamplepassword
set mysqlconnect=%mysqlcmd% -u root –password=%mysqlpwd%
set mysqldumper="C:\Program Files\MySQL\MySQL Server [...]
Setting up a MySQL fail over Master-Master replication system is something one can find many guides for.
However, monitoring and recovering from a failure of the system is not as well documented, according to a quick Google search.
The top items from that search were:
Something called: MYSQL master-master replication monitor shell script that mainly included the following [...]
Not getting into the whole which engine is the best debacle, since obviously, like most important questions in life the answer is: “It depends.”
In addition, most of what is written here can be used to convert from any engine to any engine, and thus answering any specific needs your might have.
I needed to convert MyISAM to InnoDB so here it is.
Without further ado…
As far as I know, there are two basic ways to accomplish this:
-
ALTER TABLE 'tablename' ENGINE = InnoDB
For each table in the database.
- Dump the table, edit the dump file where it says “CREATE TABLE” and fix to the preferred engine, and then reload the data back into the DB
Obviously, these methods are ok when you are dealing with a few tables, however a while ago we had a client with a huge database with over 50 tables, so of course, a script was in place.
