[Mongrel] mongrel_cluster, start on boot, stale pids

[Eden Li]

Newer versions of mongrel_cluster have a --clean option which will  
remove stale pids if it finds them.  Provide that option to  
mongrel_rails cluster::* in your scripts.

On Mar 5, 2008, at 8:59 AM, Jonathan Rochkind wrote:

> So I am using the instructions here to have mongrel_cluster start my
> various mongrel-deployed apps on server boot.
> http://mongrel.rubyforge.org/wiki/MongrelCluster
>
> There is a problem mentioned here:
> http://www.ruby-forum.com/topic/105849
>
> In summary---if the server (or the mongrel processes) die ungracefully
> leaving their pids behind, then on next boot, mongrel_cluster won't
> succesfully start them up, choking on the leftover pids.
>
> What is the reccommended solution to this?  I'd like to have my  
> mongrels
> automatically start on boot, in a way that forces them to start even  
> if
> there are stale pids. Thanks for any advice!
>
> [ PS: I just discovered this problem the hard way, when my server
> unexpetedly lost power, and my production apps failed to start up on  
> the
> next boot!  Very unpleasant. ]
>
> Jonathan
>
>
> -- 
> Jonathan Rochkind
> Digital Services Software Engineer
> The Sheridan Libraries
> Johns Hopkins University
> 410.516.8886
> rochkind (at) jhu.edu
>
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