Not able to test cron job in development using Whenever gem in rails 3

Rails
#1

I did the following to implement cron jobs in rails 3 using a “runner”
instead of a rake task.

Step 1: I have whenever gem installed and scheduler.rb has following:

set :environment, ‘development’
set :output, {
:error => “/log/error.log”,
:standard => “/log/cron.log”
}

every 1.minute do
runner “Cron.sendAutomaticsSMS()”
end

Step 2:

Cron file: lib/cron.rb

class Cron < ActiveRecord::Base

  def **sendAutomaticsSMS**()
     ----some code here ---
  end
end

Step 3:

whenever --update-crontab --set environment=development

This updates crontab file.

Step 4:

Checked contents of crontab file using:

crontab -e

It opens cron tab file which has details of cron job method to be
invoked:

# Begin Whenever generated tasks for: store

# End Whenever generated tasks for: store

# Begin Whenever generated tasks for:

/code/rails_projects/new/bhk/bigbhk- dev/config/schedule.rb
* * * * * /bin/bash -l -c ‘cd <RAILS_APP_PROJECT_LOCATION> &&
script/rails runner -e development
‘’‘Cron.sendAutomaticsSMS()’’’ >$

# End Whenever generated tasks for:

/code/rails_projects/new/bhk/bigbhk-dev/

Step 5:

Running cron job:

$sudo service cron restart

cron stop/waiting
cron start/running, process 4027

This does not do anything. I wait for operation as defined in
sendAutomaticsSMS() method to execute but the cron doesn’t even enter
this
method.

I don’t see any error in log/development.log and there is no
log/cron.log
in my rails app.

Posted this question on
Stackoverflowhttp://stackoverflow.com/questions/23880580/not-able-to-test-cron-job-using-whenever-gem-in-rails-3as
well.
Thanks.

Regards,
Ankur

#2

Any help on this will be greatly appreciated! Thanks.

–
Regards,
Ankur

#3

On Thursday, 29 May 2014 00:55:59 UTC-5, Ankur wrote:

}

# Begin Whenever generated tasks for: store

You’ll want to find where your cron logs to:

http://unix.stackexchange.com/questions/207/where-are-cron-errors-logged

And post any errors you find in there.

A first guess is that the environment cron is setting up for your task
isn’t the same as the one you use for development; are you using RVM or
rbenv? Gemsets?

–Matt J.

#4

Thanks Matt for your reply! Unfortunately, I don’t see any log file in
suggested locations the blog referred to:

/var/log/cron, /var/log/messages and /var/log/syslog

There is no tail trace my development log file generates.

I am using RVM and bundler for gems. I found similar issue for Rails 4
here
but it is unanswered:

http://stackoverflow.com/questions/23387065/crontab-in-rails-4-not-executing-correctly/23958204#23958204

I think whenever is a heavily used rails gem and other developers on
this
forum who have used this gem can help debugging this problem as well. I
hope I followed all the steps for integration.

Thanks.

Regards,
Ankur

#5

I have not been able to resolve this issue. Tried defining a relative
path
for log location in scheduler.rb file, but it didn’t help. I don’t see
any
log file after restarting cron job using: *sudo service cron restart
*and
the job as defined in Cron.sendAutomaticsSMS() is not executed.

RAILS_ROOT/config/scheduler.rb

set :environment, ‘development’

log_dir = File.expand_path("…/log/", FILE)

set :output, {

:error => File.join(log_dir, “error.log”),

:standard => File.join(log_dir, “cron.log”)

}

every 1.minute do

runner “Cron.sendAutomaticsSMS()”

end

Please help me with this.

Thanks.

–
Regards,
Ankur