net/ftp works manually, fails via cron

[Daniel Berger]

Hi all,

Ruby 1.8.2
Solaris 10, Linux 2.6.8

I'm experiencing something odd with net/ftp. When I run the following snippet
manually it works fine. Running the same snippet under cron seems to fail.

I don't get any messages in the log file. No indication whatsoever that there
was a problem. It's just that...nothing happens. There is no file transfer as
far as I can see when run via cron.

Any ideas?

Regards,

Dan

# ftptest.rb
require "net/ftp"
include Net

host = "some_host"
log_file = "ftptest.log"

fh = File.open(log_file, "w+")

begin
ftp = FTP.new(host)
ftp.login("djberge", "xxxxx")
ftp.chdir("local")
ftp.gettextfile("text.temp")
rescue Exception => err
fh.puts("FTP ERROR: #{err}")
raise
else
fh.puts("Got file")
end

begin
ftp.puttextfile("upload_test.txt")
rescue Exception => err
fh.puts("FTP ERROR: #{err}")
raise
else
fh.puts("Put file")
end

ftp.close
fh.close

 

[Jamey Cribbs]

Hi all,

Ruby 1.8.2
Solaris 10, Linux 2.6.8

I'm experiencing something odd with net/ftp. When I run the following
snippet manually it works fine. Running the same snippet under cron
seems to fail.

I don't get any messages in the log file. No indication whatsoever
that there was a problem. It's just that...nothing happens. There is
no file transfer as far as I can see when run via cron.

Any ideas?

Some questions:

Did you add it to the root user's crontab or your user account's crontab?

When you run it manually and it works, are you running it as root or as
yourself?

In the crontab, did you specify the absolute path to both the ruby
interpreter and to your script file?

Jamey

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[Ara.T.Howard]

Hi all,

Ruby 1.8.2
Solaris 10, Linux 2.6.8

I'm experiencing something odd with net/ftp. When I run the following
snippet manually it works fine. Running the same snippet under cron seems to
fail.

I don't get any messages in the log file. No indication whatsoever that
there was a problem. It's just that...nothing happens. There is no file
transfer as far as I can see when run via cron.

Any ideas?

path to ruby is fubar under cron? what's the shebang line and cron line?

Regards,

Dan

# ftptest.rb
require "net/ftp"
include Net

host = "some_host"
log_file = "ftptest.log"

fh = File.open(log_file, "w+")

begin
ftp = FTP.new(host)
ftp.login("djberge", "xxxxx")
ftp.chdir("local")
ftp.gettextfile("text.temp")
rescue Exception => err
fh.puts("FTP ERROR: #{err}")
raise
else
fh.puts("Got file")
end

begin
ftp.puttextfile("upload_test.txt")
rescue Exception => err
fh.puts("FTP ERROR: #{err}")
raise
else
fh.puts("Put file")
end

ftp.close
fh.close

-a
--
===============================================================================
| email :: ara [dot] t [dot] howard [at] noaa [dot] gov
| phone :: 303.497.6469
| Your life dwells amoung the causes of death
| Like a lamp standing in a strong breeze. --Nagarjuna
===============================================================================

 

[Daniel Berger]

Some questions:

Did you add it to the root user's crontab or your user account's crontab?

When you run it manually and it works, are you running it as root or as
yourself?

In the crontab, did you specify the absolute path to both the ruby
interpreter and to your script file?

Nope, whoops, that was it. I think I goofed the crontab, too, which is why I
got no error message.

Sorry for the noise.

Dan