On Mon, Dec 19, 2011 at 01:16:16PM -0800, David Powell wrote:
>
> Thanks for the prompt reply John. I added the rescue+logging as you
> suggested to our TouchParticipant. However, the workitem still just
> "stops" and the log is not triggered so something else is going wrong
> it seems. The re-apply trick does get it working again, but is
> obviously not ideal.
>
> I'm keen to try and pin down the problem. Unfortunately, this problem
> only occurs about every 24hrs, so debugging will be a pain. Do you
> have any suggestions on where to start looking?
Hello David,
I should have asked that earlier, but does it stop always at the same point?
Is there a pattern emerging somehow?
With a 24h frequency we'd better turn some more logging on and wait.
One idea would be to 'instrument' the storage a bit, like in:
---8<---
require 'pp'
class PowellStorage < Ruote::Redis::Storage
def initialize(redis, options={})
@log = File.open("ruote_redis_#{$$}.log", 'wb')
super
end
def put_msg(action, options)
@log.puts('p=' * 40)
PP.pp([ action, options ], @log)
super
end
def get_msgs
msgs = super
@log.puts('=g' * 40)
msgs.each { |msg| PP.pp(msg, @log); @log.puts('- ' * 40) }
msgs
end
end
--->8---
If the messages get in (put_msg) but don't get out (get_msgs) that would
incriminate ruote-redis or redis.
There are other techniques for watching/archiving the engine/workers
activity. The one above is very straightforward, it produces too much info.
This might be better (and more greppable):
---8<---
class PowellStorage < Ruote::Redis::Storage
def initialize(redis, options={})
@log = File.open("ruote_redis_#{$$}.log", 'wb')
super
end
def put_msg(action, options)
@log.puts([ 'in', action, options['fei'].inspect ].join(' '))
super
end
def get_msgs
msgs = super
msgs.each { |msg|
@log.puts([ 'out', msg['action'], msg['fei'].inspect ].join(' '))
}
msgs
end
end
--->8---
Adding the msg['put_at'] could help too.
Does it stop always at the same point? Is there a pattern emerging somehow?
Cheers,
--
John Mettraux - http://lambda.io/processi
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