Rails - May 2009 - Multithreaded BG task which does AR updates okay?

Hey guys,

I''m thinking about writing a method which utilises multithreading to
do a bunch of api
calls and make AR updates.  Then calling the method once an hour with
Rufus scheduler.

I''m a little concerned if this is safe or not, and I''m
wondering if
anyone has any insight?  I guess the main topic is does multithreading
work nicely with AR - but I''m also wondering if using rufus turns it
in to a more complicated question?

Has anyone seen good articles discussing it?

Cheers,

Tim.

What we do is to write a rake task that make AR update, and add this running
task into cron job, it''s easy and safe.

On Fri, May 22, 2009 at 9:06 AM, Tim Haines
<TMHaines-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> Hey guys,
>
> I''m thinking about writing a method which utilises multithreading
to
> do a bunch of api
> calls and make AR updates.  Then calling the method once an hour with
> Rufus scheduler.
>
> I''m a little concerned if this is safe or not, and I''m
wondering if
> anyone has any insight?  I guess the main topic is does multithreading
> work nicely with AR - but I''m also wondering if using rufus turns
it
> in to a more complicated question?
>
> Has anyone seen good articles discussing it?
>
> Cheers,
>
> Tim.
> >
>

-- 
My home: http://www.huangzhimin.com

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

On May 22, 2:06 am, Tim Haines
<TMHai...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hey guys,
>
> I''m thinking about writing a method which utilises multithreading
to
> do a bunch of api
> calls and make AR updates.  Then calling the method once an hour with
> Rufus scheduler.
On earlier version of rails you need to explicitly safe that you want
AR to be threadsafe (the setting is called allow_concurrency). This
isn''t needed from rails 2.2 is my memory is correct.

Fred
>
> I''m a little concerned if this is safe or not, and I''m
wondering if
> anyone has any insight?  I guess the main topic is does multithreading
> work nicely with AR - but I''m also wondering if using rufus turns
it
> in to a more complicated question?
>
> Has anyone seen good articles discussing it?
>
> Cheers,
>
> Tim.