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Matthias Heigl

2008-Jan-13 18:21 UTC

[Backgroundrb-devel] {worker} after :end-time worker freaks out

Hi all,

i was using bdrb a while ago and it wasn''t stable enough in version 
0.2.1 for doing the job - it loss jobs or did execute only the first one 
invoked and so on.

Now i gave the new version a try and i found a bug at playing around.

When i start a worker_method over the normal Unix scheduler bdrb will 
start as much as possible the worker_method after the :end-time is reached.

I verifyed the behavior on two different boxes:

1. Mac OS X 10.5.1

2. Debian Lenny

Both using Rub 1.8.6 an backgroundrb 1.0.

My Test-Files

backgroundrb.yml
- - - - - -
:backgroundrb:
   :port: 11006
   :ip: localhost
   :environment: development
:schedules:
   :mytest_worker:
     :doit:
       :trigger_args:
         :start: <%= Time.now + 1.seconds %>
         :end: <%= Time.now + 1.minute %>
         :repeat_interval: <%= 10.seconds %>
- - - - - -

mytest_worker.rb
- - - - - -
class MytestWorker < BackgrounDRb::MetaWorker
   set_worker_name :mytest_worker
   def create(args = nil)
     # this method is called, when worker is loaded for the first time
     @counter=0
   end
   def doit
     @counter += 1
     logger.debug("mytest: doit #{@counter} - #{Time.now}")
   end
end
- - - - - -

After i start bdrb with ./script/backgroundrb start my backgroundrb.log 
looks like this:
- - - - - -
mytest_worker started
Schedules for worker loaded
mytest: doit 1 - Sun Jan 13 19:07:19 +0100 2008
mytest: doit 2 - Sun Jan 13 19:07:29 +0100 2008
mytest: doit 3 - Sun Jan 13 19:07:39 +0100 2008
mytest: doit 4 - Sun Jan 13 19:07:49 +0100 2008
mytest: doit 5 - Sun Jan 13 19:07:59 +0100 2008
mytest: doit 6 - Sun Jan 13 19:08:09 +0100 2008
mytest: doit 7 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 8 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 9 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 10 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 11 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 12 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 13 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 14 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 15 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 16 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 17 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 18 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 19 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 20 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 21 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 22 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 23 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 24 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 25 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 26 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 27 - Sun Jan 13 19:08:19 +0100 2008
mytest: doit 28 - Sun Jan 13 19:08:19 +0100 2008
... (about 180 per second)
- - - - - -

For my projekt i didn''t need the Unix scheduler style, but while
testing
if the new version will meet the requirements i noticed this.

Maybe i did something wrong, but in the version 0.2.1 the :end-time 
works - i think.

My Question about best practise will be part of my next mail to keep 
apart the issues.

Cheers,

Matze

hemant kumar

2008-Jan-13 20:03 UTC

head link

[Backgroundrb-devel] {worker} after :end-time worker freaks out

Hi Matthias,

On Sun, 2008-01-13 at 19:21 +0100, Matthias Heigl wrote:> Hi all,
> 
> i was using bdrb a while ago and it wasn''t stable enough in
version
> 0.2.1 for doing the job - it loss jobs or did execute only the first one 
> invoked and so on.
> 
> Now i gave the new version a try and i found a bug at playing around.
> 
> When i start a worker_method over the normal Unix scheduler bdrb will 
> start as much as possible the worker_method after the :end-time is reached.
> 
> I verifyed the behavior on two different boxes:
> 
> 1. Mac OS X 10.5.1
> 
> 2. Debian Lenny
> 
> Both using Rub 1.8.6 an backgroundrb 1.0.
> 
> My Test-Files
> 
> backgroundrb.yml
> - - - - - -
> :backgroundrb:
>    :port: 11006
>    :ip: localhost
>    :environment: development
> :schedules:
>    :mytest_worker:
>      :doit:
>        :trigger_args:
>          :start: <%= Time.now + 1.seconds %>
>          :end: <%= Time.now + 1.minute %>
>          :repeat_interval: <%= 10.seconds %>
> - - - - - -
> 
> mytest_worker.rb
> - - - - - -
> class MytestWorker < BackgrounDRb::MetaWorker
>    set_worker_name :mytest_worker
>    def create(args = nil)
>      # this method is called, when worker is loaded for the first time
>      @counter=0
>    end
>    def doit
>      @counter += 1
>      logger.debug("mytest: doit #{@counter} - #{Time.now}")
>    end
> end
> - - - - - -
> 
> After i start bdrb with ./script/backgroundrb start my backgroundrb.log 
> looks like this:
> - - - - - -
> mytest_worker started
> Schedules for worker loaded
> mytest: doit 1 - Sun Jan 13 19:07:19 +0100 2008
> mytest: doit 2 - Sun Jan 13 19:07:29 +0100 2008
> mytest: doit 3 - Sun Jan 13 19:07:39 +0100 2008
> mytest: doit 4 - Sun Jan 13 19:07:49 +0100 2008
> mytest: doit 5 - Sun Jan 13 19:07:59 +0100 2008
> mytest: doit 6 - Sun Jan 13 19:08:09 +0100 2008
> mytest: doit 7 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 8 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 9 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 10 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 11 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 12 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 13 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 14 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 15 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 16 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 17 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 18 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 19 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 20 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 21 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 22 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 23 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 24 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 25 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 26 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 27 - Sun Jan 13 19:08:19 +0100 2008
> mytest: doit 28 - Sun Jan 13 19:08:19 +0100 2008
> ... (about 180 per second)
> - - - - - -
> 
> For my projekt i didn''t need the Unix scheduler style, but while
testing
> if the new version will meet the requirements i noticed this.
> 
> Maybe i did something wrong, but in the version 0.2.1 the :end-time 
> works - i think.
> 
> My Question about best practise will be part of my next mail to keep 
> apart the issues.
> 
> Cheers,
Yes, I am able to reproduce the error and hence I have fixed it in trunk as well
as 1.0.1 release.

I will suggest you to use 1.0.1 release since it contains many fixes over 1.0
release:

http://svn.devjavu.com/backgroundrb/tags/release-1.0.1/

Matthias Heigl

2008-Jan-14 23:02 UTC

head link

[Backgroundrb-devel] {worker} after :end-time worker freaks out

hemant kumar schrieb:> Hi Matthias,
> 
> On Sun, 2008-01-13 at 19:21 +0100, Matthias Heigl wrote:
>> Hi all,
>>
>> i was using bdrb a while ago and it wasn''t stable enough in
version
>> 0.2.1 for doing the job - it loss jobs or did execute only the first
one
>> invoked and so on.
>>
>> Now i gave the new version a try and i found a bug at playing around.
>>
>> When i start a worker_method over the normal Unix scheduler bdrb will 
>> start as much as possible the worker_method after the :end-time is
reached.
>>
>> I verifyed the behavior on two different boxes:
>>
>> 1. Mac OS X 10.5.1
>>
>> 2. Debian Lenny
>>
>> Both using Rub 1.8.6 an backgroundrb 1.0.
>>
>> My Test-Files
>>
>> backgroundrb.yml
>> - - - - - -
>> :backgroundrb:
>>    :port: 11006
>>    :ip: localhost
>>    :environment: development
>> :schedules:
>>    :mytest_worker:
>>      :doit:
>>        :trigger_args:
>>          :start: <%= Time.now + 1.seconds %>
>>          :end: <%= Time.now + 1.minute %>
>>          :repeat_interval: <%= 10.seconds %>
>> - - - - - -
>>
>> mytest_worker.rb
>> - - - - - -
>> class MytestWorker < BackgrounDRb::MetaWorker
>>    set_worker_name :mytest_worker
>>    def create(args = nil)
>>      # this method is called, when worker is loaded for the first time
>>      @counter=0
>>    end
>>    def doit
>>      @counter += 1
>>      logger.debug("mytest: doit #{@counter} - #{Time.now}")
>>    end
>> end
>> - - - - - -
>>
>> After i start bdrb with ./script/backgroundrb start my backgroundrb.log
>> looks like this:
>> - - - - - -
>> mytest_worker started
>> Schedules for worker loaded
>> mytest: doit 1 - Sun Jan 13 19:07:19 +0100 2008
>> mytest: doit 2 - Sun Jan 13 19:07:29 +0100 2008
>> mytest: doit 3 - Sun Jan 13 19:07:39 +0100 2008
>> mytest: doit 4 - Sun Jan 13 19:07:49 +0100 2008
>> mytest: doit 5 - Sun Jan 13 19:07:59 +0100 2008
>> mytest: doit 6 - Sun Jan 13 19:08:09 +0100 2008
>> mytest: doit 7 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 8 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 9 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 10 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 11 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 12 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 13 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 14 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 15 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 16 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 17 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 18 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 19 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 20 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 21 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 22 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 23 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 24 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 25 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 26 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 27 - Sun Jan 13 19:08:19 +0100 2008
>> mytest: doit 28 - Sun Jan 13 19:08:19 +0100 2008
>> ... (about 180 per second)
>> - - - - - -
>>
>> For my projekt i didn''t need the Unix scheduler style, but
while testing
>> if the new version will meet the requirements i noticed this.
>>
>> Maybe i did something wrong, but in the version 0.2.1 the :end-time 
>> works - i think.
>>
>> My Question about best practise will be part of my next mail to keep 
>> apart the issues.
>>
>> Cheers,
> 
> Yes, I am able to reproduce the error and hence I have fixed it in trunk as
well as 1.0.1 release.
> 
> I will suggest you to use 1.0.1 release since it contains many fixes over
1.0 release:
> 
> http://svn.devjavu.com/backgroundrb/tags/release-1.0.1/
> 
I installed the 1.0.1 release and everything looks fine now.

This fix was really quick!

Cheers,

Matze

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