[Mongrel] Fails to restart mongrel cluster after Capistrano rollback (PIDs not deleted)

Casper Fabricius casper at lol.dk
Tue Sep 11 03:31:11 EDT 2007


Thanks Wayne,

That does the trick for me! I simply added this:

   task :rollback do
     stop
     rollback_code
     start
   end

Cheers,
Casper


On 07/09/2007, at 18:15, Wayne E. Seguin wrote:

> On Sep 07, 2007, at 03:30 , Casper Fabricius wrote:
>> Hi,
>>
>> I am deploying a Rails website using Capistrano to a VPS running the
>> site through Apache and Mongrel.
>>
>> 'cap deploy' works fine, and mongrels are restarted. When I execute
>> 'cap deploy:rollback', however, my script fails to restart the
>> mongrels giving this error:
>> !!! PID file tmp/pids/mongrel.5000.pid already exists.  Mongrel could
>> be running already.  Check your log/mongrel.5000.log for errors.
>>
>> I have a hunch that the error is related to the fact that I link / 
>> tmp/
>> pids into the shared directory upon each release in the
>> "after_update" task, but I'm not sure how I end up with this problem,
>> as the old dir I'm rolling back also has the link setup. The mongrels
>> are stopped, but for some reason they don't clean up their PID files,
>> and thus they fail to start again.
>>
>> The full output of the rollback looks like this:
>> http://pastie.caboo.se/94602
>>
>> My deploy.rb looks like this:
>> http://pastie.caboo.se/94600
>>
>> Any help on this issue would be appreciated - thanks!
>>
>> Best regards,
>> Casper Fabricius
>> ________________________________________
>
> Casper,
>
> I'd rewrite the default rollback task to:
> 1. Stop mongrel cluster
> 2. Rollback
> 3. Restart mongrel cluster
>
> Between 2-3 you might also want to ensure that the new (old)  
> "current" directory links the pid directory correctly.
>
>   ~Wayne
>
> s///g
> Wayne E. Seguin
> Sr. Systems Architect & Systems Administrator
>
> _______________________________________________
> Mongrel-users mailing list
> Mongrel-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/mongrel-users

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