Displaying 20 results from an estimated 9000 matches similar to: "Debugging a worker?"
2006 Aug 01
4
Creating workers from workers?
Since MiddleMan is an uninitialized constant in a worker how do you
create new workers inside a worker?
Thank You,
Ben Johnson
E: bjohnson at contuitive.com
O: 800-341-6826
M: 817-229-4258
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2006 Aug 19
7
Impossible to get stable?
I have concluded that it is impossible to get this background process
stable. I am out of ideas and could really use some help.
Here is what I have:
50 workers, just running an infinite loop that constantly calls save!
on a model. Keep in mind this is just for testing purposes. I catch
all exceptions and put them in the log.
I am tried setting allow_concurrency to true and false. Neither
2006 Jul 31
1
Creating workers on server startup?
I have workers that need to be created when I run rake
backgroundrb:start. Where do I put this code?
Thanks for your help.
Thank You,
Ben Johnson
E: bjohnson at contuitive.com
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2006 Aug 18
1
Ezra....allow_concurrency = false?
In a previous email you wrote this:
Glad you''re getting some use out of the plugin ;) ActiveRecord does
have some issues with threading and concurrency that can sometimes
cause that error you are seeing. Open up your script/backgroundrb/
start file and comment out the following line:
ActiveRecord::Base.allow_concurrency = true
Make sure you do that up in your main app script folder
2006 Jul 07
2
Problems installing, please help
I am in my rails project directory and I ran the following command:
script/plugin install svn://rubyforge.org//var/svn/backgroundrb
and I get this:
sh: svn: command not found
Any idea how I can install backgroundrb or what the problem is?
Any help is greatly appreciated.
Thank You,
Ben Johnson
E: bjohnson at contuitive.com
O: 800-341-6826
M: 817-229-4258
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2006 Sep 01
8
Worker suicide
Hi the list people, hi Ezra,
I just read from this message
http://rubyforge.org/pipermail/backgroundrb-devel/2006-July/000134.html that
BackgrounDRb will offer a way to kill a worker from within itself.
As this message is from 7/25, I wonder if this feature has been added since.
If not, is there any way to do it? I tried this:
MiddleMan.delete_worker(@_job_key)
But it raise:
uninitialized
2006 Aug 19
1
Setting the process priority?
Is it possible to make the process priority higher for backgroundrb?
Thank You,
Ben Johnson
E: bjohnson at contuitive.com
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2006 Aug 28
1
Just a tip
I figured instead of asking a question I would share some useful
knowledge I learned this week. Maybe you already know this, maybe you
dont.
If you use backgroundrb to run an "infinite" loop, or create many
threads, or do quite a bit of processor intensive tasks, and you
notice that its running kind of slow, it might not be a bad idea to
have multiple backgroundrb processes
2006 Jul 07
1
uninitialized constant MiddleMan
I just updated backgroundrb to the latest version, and now I get this:
uninitialized constant MiddleMan
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/
active_support/dependencies.rb:123:in `const_missing''
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/
active_support/dependencies.rb:131:in `const_missing''
2006 Jul 31
1
Please help, if @jobs[key].respond_to? :thread is returning false
I noticed in the BackgroundRB class in the delete_worker method there
is a line:
if @jobs[key].respond_to? :thread
For some reason this is returning false for me, it gets down to this
line and returns false, not killing the thread. Any idea why this is
returning false?
Thanks for your help.
Thank You,
Ben Johnson
E: bjohnson at contuitive.com
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2006 Aug 23
5
Singleton-like Worker
Hello there,
I need a Worker Class to be Singleton-like, that means there must be at
maximum one Instance at a time. When a new Request is made to create another
worker of this type, it should return and wait for the other instance to be
destroyed.
what i need to do: i have a worker who needs to do sth with java and
openoffice, and it seems when i have more tha one worker simultaneously,
2006 Jul 12
1
When to use Mutex::synchronize?
I have a simple question when to the synchronize method in the Mutex
class.
Now that backgroundrb has allow_concurrency = true there is no need
to synchronize database calls in threads.
The question I have is lets say I have a simple method in my worker
as follows:
def some_method
SomeModel.find_all each do |obj|
obj.some_count += 1
obj.save!
end
end
It accesses the database, but
2006 Jul 17
2
Very strange after_save problem. Please help.
I have a very strange problem here. I do not get this. So any help is
greatly appreciated.
Basically I have a model that calls a method in the background
process in the "after_save" method. Let''s call the model products. So
what happens is this:
1. I create a new product.
2. Everything works and the product is saved with id 13.
3. A method is called in my background
2006 Jul 19
1
Passing objects to drb, does it keep the existing db connection?
I have a simple question. Let''s say I do this in one of my models:
after_save
drb_conn.some_method(self)
end
When that object gets over to the background process is it the exact
same as?....
Model.find some_id #in the background process
As far as my background process is concerned passing the object is
not any different than passing the id and using the find method?
Because
2006 Aug 24
1
ActionMailer doesn''t work in backgroundrb
I am pretty confident that mailers do not work in backgroundrb. Can
anyone confirm this? Because when I try to do
Notifier.deliver_some_method I get an error saying it cant find the
templates for my email. The funny thing is that when I run script/
runner Notifier.deliver_some_method it works just fine. Any ideas?
Thank You,
Ben Johnson
E: bjohnson at contuitive.com
O: 800-341-6826
M:
2006 Jul 31
1
delete_worker doesn''t kill the thread?
I made a worker that run an infinite loop and does the following:
while true
@logger << "logging #{Time.now}"
sleep 2
end
In my secong console I did:
tail log/backgroundrb.log -f
This is so I could see the line getting added to the log every 2
seconds.
Then in my other console I started script/console and created a new
worker. Then killed it with
2006 Jul 31
1
MySQL too many connections?
Does any have any idea why I would get:
Mysql::Error: Too many connections
I am creating new threads in my background process. I know
allow_concurrency is set to true. Does this create a new database
connection when a new thread is created? Because what I''m doing is
similar to this:
@threads[model.id] = Thread.new do
end
I also kill off these threads and over write some of the
2006 Jul 20
9
Including children''s children?
a has many b''s
b has many c''s
results = A.find params[:id], :include => :b
How do you also make sure the b''s include the c''s?
Thanks for your help.
Thank You,
Ben Johnson
E: bjohnson@contuitive.com
O: 800-341-6826
M: 817-229-4258
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2006 Jun 15
5
Cannot invoke ActiveRecord subclass accessors in DRb worker
Hi there,
I''m trying to create a worker to do some asynchronous web client work
and update the data model with its results. It seems, however, that
every call I make to an ActiveRecord subclass causes the whole thing
to block. At least I think it''s blocked. Right now I''m just using
debug log output.
Is there a decent way to debug/test workers I can try?
Is there any
2006 Jul 19
1
Catch 22 with after_save. Please help.
I have a pretty strange problem. Here is basically what I have to
demonstrate my problem:
class Event < ActiveRecord::Base
def after_create
AnotherClass.find_event(id)
end
end
class AnotherClass < ActiveRecord::Base
def self.find_event(event_id)
e = Event.find event_id
end
end
Here is the catch 22 and it''s quite annoying. Basically ActiveRecord
puts to whole save