Attempting a backup with CE 8.0.0 causes a tar execption

Trying to create a backup on RHEL 6.5 with CE 8.0.0 gives me this error. Backup will not complete.

* DKATO-jp/mtc_ex.wiki ...  [SKIPPED]
 * rakallep-in/electronics_expert_factory ... rake aborted!
Errno::EMFILE: Too many open files - tar
/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/popen.rb:23:in `popen'
/opt/gitlab/embedded/service/gitlab-rails/lib/backup/repository.rb:20:in `block in dump'
/opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/activerecord-4.1.12            /lib/active_record/relation/batches.rb:52:in `block (2 levels) in find_each'
/opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/activerecord-4.1.12    /lib/active_record/relation/batches.rb:52:in `each'
/opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/activerecord-4.1.12    /lib/active_record/relation/batches.rb:52:in `block in find_each'
/opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/activerecord-4.1.12    /lib/active_record/relation/batches.rb:126:in `find_in_batches'
/opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/activerecord-4.1.12    /lib/active_record/relation/batches.rb:51:in `find_each'
/opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/activerecord-4.1.12    /lib/active_record/querying.rb:9:in `find_each'
/opt/gitlab/embedded/service/gitlab-rails/lib/backup/repository.rb:10:in `dump'
/opt/gitlab/embedded/service/gitlab-rails/lib/tasks/gitlab/backup.rake:47:in     `block (4 levels) in <top (required)>'
/opt/gitlab/embedded/service/gitlab-rails/lib/tasks/gitlab/backup.rake:12:in `block (3 levels) in <top (required)>'
Tasks: TOP => gitlab:backup:repo:create
(See full trace by running task with --trace)
[DONE] 

I have increased ulimit -n (hard and soft) but no use.

System information
System:         RedHatEnterpriseServer 6.6
Current User:   git
Using RVM:      no
Ruby Version:   2.1.6p336
Gem Version:    2.2.5
Bundler Version:1.5.3
Rake Version:   10.4.2
Sidekiq Version:3.3.0

GitLab information
Version:        8.0.0
Revision:       d70c051
Directory:      /opt/gitlab/embedded/service/gitlab-rails
DB Adapter:     postgresql
URL:            https://XXXXXXXXX.XYZ..com
HTTP Clone URL: https://XXXXXXXXX.XYZ..com/some-group/some-project.git
SSH Clone URL:  git@XXXXXXXXXXXX.com:some-group/some-project.git
Using LDAP:     yes
Using Omniauth: no

GitLab Shell
Version:        2.6.5
Repositories:   /var/opt/gitlab/git-data/repositories
Hooks:          /opt/gitlab/embedded/service/gitlab-shell/hooks/
Git:            /opt/gitlab/embedded/bin/git

This problem was solved with a work around. Increasing the limits. ulimit-a
followed the steps from this link

increase-open-files-limit

Thanks :slightly_smiling: