Reducing memory consumption of mysql on ubuntu@aws micro instance

Question

I have recently started on a PoC project wherein we are developing a small web app. The initial setup is done on a micro instance from AWS. We are on rails+mysql stack.

After installing/running MySQL, I see that about 500+ MB RAM has been consumed already; leaving quite less for rest of the systems (micro instances have barely 620 MB RAM).

Our app is fairly simple at this stage. Can I do something to reduce the memory consumed by MySQL server?

Appreciate the help.

question from:https://stackoverflow.com/questions/10676753/reducing-memory-consumption-of-mysql-on-ubuntuaws-micro-instance

Answer 1

Change this setting in the MySQL configuration file (my.cnf)

key_buffer              = 8M 
max_connections         = 30 # Limit connections
query_cache_size        = 8M # try 4m if not enough 
query_cache_limit       = 512K
thread_stack            = 128K