If I Fork a process in ruby, do I need to reconnect to Mysql DB? -

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i'm using following environment.

  • rails 3.1
  • unicorn
  • mysql

i have fork process wich generate invoces. people told me use 

activerecord::base.connection.reconnect!

because drivers lost connection fork... looked information i'm more confused before... here comes doubts:

1 what's difference between using 

activerecord::base.connection.reconnect!

and

::activerecord::base.clear_all_connections!

before forking , 

::activerecord::base.establish_connection

as shown here? mysql, using fork in ruby

2 should always?

if answer yesthere place put "fork configuration"?

3 what's happen connection when forked process ends? should close it? or close automatically? , what's append father's process connection?

4 needed database connections?

i have read somewhere postgres db...

thank you

no, point of view dont have reconnect.. have connect if want access different database, far know rails handles reconnect own mysql.


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