Re: Setting app name for process list

[Jeremy Evans <jeremyevans0@gmail.com>]

On Thu, Jul 8, 2010 at 10:09 PM, Paul Dlug <paul.dlug@gmail.com> wrote:
> On Thu, Jul 8, 2010 at 5:42 PM, Eric Wong <normalperson@yhbt.net> wrote:
>> Devin Ben-Hur <dbenhur@whitepages.com> wrote:
>>> On 7/8/10 1:55 PM, Paul Dlug wrote:
>>>> Is there a way to set an application name for unicorn processes?
>>>> Basically an arbitrary name which would then show up in the process
>>>> list to identify unicorn processes, like what thin does with --tag.
>>>
>>> A patch to do something like that was recently rejected. Instead the
>>> documentation was updated with Eric's recommendated solution to instance
>>> identification:
>>> http://rubyforge.org/pipermail/mongrel-unicorn/2010-July/000620.html
>>>
>>> +    Using an absolute path for for CONFIG_FILE is recommended as it
>>> +    makes multiple instances of Unicorn easily distinguishable when
>>> +    viewing ps(1) output.
>>
>> Lawrence Pit also recommends running each app as a separate user,
>> which is also a great idea (IMHO, though some ops people I know
>> dislike this):
>>
>>   http://mid.gmane.org/4C32926D.5080400@gmail.com
>
> I think both of these solutions are undesirable, relying on the config
> file path is not ideal and running with different users is practical
> in my environment. Both these point out the need for some feature to
> distinguish running applications, I think adding a configurable
> application name/tag would be very useful, not sure how much work it
> would be but I can look at adding a patch if there is interest.

The patch was already submitted and rejected.  If you want this
feature, you can implement it yourself in the config file with the
following code:

class Unicorn::HttpServer
  def proc_name(tag)
    $0 = ([ File.basename(START_CTX[0]), "application name/tag",
            tag ]).concat(START_CTX[:argv]).join(' ')
  end
end

Jeremy
_______________________________________________
Unicorn mailing list - mongrel-unicorn@rubyforge.org
http://rubyforge.org/mailman/listinfo/mongrel-unicorn
Do not quote signatures (like this one) or top post when replying