Backup fails because of a NoMethodError: undefined method 'chomp' for nil:NilClass exception

[adrenth-mixcom]

My backup job is failing. The temporary backup folder is not being emptied because of an Exception.

Using backup version 4.1.10

My logfile contains the following Exception:
(removed some sensitive information)

[2015/05/19 02:06:40][error] Model::Error: Backup for [my job] Failed!
[2015/05/19 02:06:40][error] --- Wrapped Exception ---
[2015/05/19 02:06:40][error] NoMethodError: undefined method `chomp' for nil:NilClass
[2015/05/19 02:06:40][error] 
[2015/05/19 02:06:40][error] Backtrace:
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh/prompt.rb:73:in `prompt'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/methods/password.rb:57:in `ask_password'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/methods/password.rb:22:in `authenticate'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/session.rb:79:in `block in authenticate'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/session.rb:66:in `each'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/session.rb:66:in `authenticate'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/net-ssh-2.9.2/lib/net/ssh.rb:211:in `start'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/storage/scp.rb:30:in `connection'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/storage/scp.rb:36:in `transfer!'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/storage/base.rb:35:in `perform!'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/model.rb:269:in `each'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/model.rb:269:in `block in perform!'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/model.rb:268:in `each'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/model.rb:268:in `perform!'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/lib/backup/cli.rb:156:in `perform'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/thor-0.18.1/lib/thor/command.rb:27:in `run'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/thor-0.18.1/lib/thor/invocation.rb:120:in `invoke_command'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/thor-0.18.1/lib/thor.rb:363:in `dispatch'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/thor-0.18.1/lib/thor/base.rb:439:in `start'
[2015/05/19 02:06:40][error]   /var/lib/gems/2.1.0/gems/backup-4.1.10/bin/backup:5:in `<top (required)>'
[2015/05/19 02:06:40][error]   /usr/local/bin/backup:23:in `load'
[2015/05/19 02:06:40][error]   /usr/local/bin/backup:23:in `<main>'
[2015/05/19 02:06:40][warn] Cleaner::Error: Cleanup Warning

Here the layout of the model being used:

Model.new(:job, 'job name) do

  archive :job do |archive|
    archive.root ...
    archive.add ...
    archive.exclude ...
  end

  archive :system do |archive|
    archive.add "/etc"
    archive.add "/var/log"
  end

  database MongoDB, :job do |db|
    db.name               = ...
    # ...
  end

  database MySQL, :job do |db|
    # ...
  end

  store_with SCP do |server|
    server.username   = "backup"
    # ...
  end

  compress_with Gzip

  notify_by Mail do |mail|
    mail.on_success           = true
    mail.on_warning           = true
    mail.on_failure           = true
  end

end

Is this information enough to fix this issue? Please let me know if you need more details.

[tombruijn]

Hi @adrenth-mixcom, sorry for the month delay. Being in an accident forced me to take some time off.

I looked at the issue and it doesn't seem to be a backup issue.

It's either a configuration or network issue for SCP.
In the configuration, check if anything is defined as nil by accident. I don't have the full picture so I don't know what configuration options you're really setting.
On the net-ssh gem, which backup uses, there's an issue about the same error: net-ssh/net-ssh#234 . Maybe have a look there to see if it sounds similar?

[tombruijn]

@adrenth-mixcom any update on this?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.