Cannot import project into fresh omnibus gitlab instance

Summary

Importing a project exported from a gitlab instance (gitlab.com, export made yesterday) to a fresh self hosted instance results in a waiting time of tens of minutes, and then a crash.

The repository could not be imported.
Error importing repository  into selma.ai/selma - tar (child): [REPO EXPORT PATH]/uploads/30d67627b7ae4bb7e2f1e854929aaa1b: Cannot open: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
, Unable to decompress [REPO EXPORT PATH]/uploads/30d67627b7ae4bb7e2f1e854929aaa1b into [REPO EXPORT PATH]/selma.ai/selma/4ed44130db8b37f70c544a0d37b45b26

Steps to reproduce

1. Export our project from gitlab.com (project is private and medium in size, if that helps it's on gitlab.com under selma.ai/selma)
2. Import that export on an instance installed using the following steps: https://about.gitlab.com/installation/#ubuntu

Example Project

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What is the current bug behavior?

An error is dispalyed. The project WIKI and issues are properly imported. But the main git is not.

What is the expected correct behavior?

The project is imported and appears correctly when loading pages

Relevant logs and/or screenshots

Screenshot:

Logs

Import/Export error raised on /opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/command_line_util.rb:31:in `execute': tar (child): /var/opt/gitlab/gitlab-rails/shared/tmp/project_exports/uploads/30d67627b7ae4bb7e2f1e854929aaa1b: Cannot open: No such file or directory

tar (child): Error is not recoverable: exiting now

tar: Child returned status 2

tar: Error is not recoverable: exiting now

No backtrace found

Import/Export error raised on /opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/file_importer.rb:26:in `rescue in import': Unable to decompress /var/opt/gitlab/gitlab-rails/shared/tmp/project_exports/uploads/30d67627b7ae4bb7e2f1e854929aaa1b into /var/opt/gitlab/gitlab-rails/shared/tmp/project_exports/selma.ai/selma/4ed44130db8b37f70c544a0d37b45b26

Import/Export backtrace: /opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/file_importer.rb:48:in `decompress_archive'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/file_importer.rb:23:in `block in import'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/file_importer.rb:42:in `wait_for_archived_file'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/file_importer.rb:22:in `import'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/file_importer.rb:9:in `import'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/importer.rb:38:in `import_file'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/importer.rb:19:in `execute'

/opt/gitlab/embedded/service/gitlab-rails/app/services/projects/import_service.rb:81:in `import_data'

/opt/gitlab/embedded/service/gitlab-rails/app/services/projects/import_service.rb:20:in `execute'

/opt/gitlab/embedded/service/gitlab-rails/app/workers/repository_import_worker.rb:17:in `perform'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:188:in `execute_job'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:170:in `block (2 levels) in process'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:128:in `block in invoke'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/sidekiq_status/server_middleware.rb:5:in `call'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/sidekiq_middleware/request_store_middleware.rb:6:in `call'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'

/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/sidekiq_middleware/shutdown.rb:52:in `call'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/server/active_record.rb:15:in `call'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sentry-raven-2.7.2/lib/raven/integrations/sidekiq.rb:9:in `call'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:133:in `invoke'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:169:in `block in process'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:141:in `block (6 levels) in dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/job_retry.rb:97:in `local'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:140:in `block (5 levels) in dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq.rb:36:in `block in <module:Sidekiq>'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:136:in `block (4 levels) in dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:204:in `stats'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:131:in `block (3 levels) in dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/job_logger.rb:7:in `call'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:130:in `block (2 levels) in dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/job_retry.rb:72:in `global'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:129:in `block in dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/logging.rb:44:in `with_context'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/logging.rb:38:in `with_job_hash_context'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:128:in `dispatch'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:168:in `process'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:85:in `process_one'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:73:in `run'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/util.rb:16:in `watchdog'

/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/sidekiq-5.0.5/lib/sidekiq/util.rb:25:in `block in safe_thread'

Output of checks

Results of GitLab environment info

root@gitlab:/etc/gitlab# gitlab-rake gitlab:env:info

System information
System:         Ubuntu 16.04
Proxy:          no
Current User:   git
Using RVM:      no
Ruby Version:   2.3.6p384
Gem Version:    2.6.13
Bundler Version:1.13.7
Rake Version:   12.3.0
Redis Version:  3.2.11
Git Version:    2.14.3
Sidekiq Version:5.0.5
Go Version:     unknown

GitLab information
Version:        10.7.2-ee
Revision:       a4f29081
Directory:      /opt/gitlab/embedded/service/gitlab-rails
DB Adapter:     postgresql
DB Version:     9.6.8
URL:            https://gitlab.xxx.xx
HTTP Clone URL: https://gitlab.xxx.xx/some-group/some-project.git
SSH Clone URL:  git@gitlab.xxx.xx:some-group/some-project.git
Elasticsearch:  no
Geo:            no
Using LDAP:     no
Using Omniauth: no

GitLab Shell
Version:        7.1.2
Repository storage paths:
- default:      /var/opt/gitlab/git-data/repositories
Hooks:          /opt/gitlab/embedded/service/gitlab-shell/hooks
Git:            /opt/gitlab/embedded/bin/git

Results of GitLab application Check

root@gitlab:/etc/gitlab# gitlab-rake gitlab:check SANITIZE=true
Checking GitLab Shell ...

GitLab Shell version >= 7.1.2 ? ... OK (7.1.2)
Repo base directory exists?
default... yes
Repo storage directories are symlinks?
default... no
Repo paths owned by git:root, or git:git?
default... yes
Repo paths access is drwxrws---?
default... yes
hooks directories in repos are links: ... 
7/1 ... repository is empty
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Redis available via internal API: OK

Access to /var/opt/gitlab/.ssh/authorized_keys: OK
gitlab-shell self-check successful

Checking GitLab Shell ... Finished

Checking Sidekiq ...

Running? ... yes
Number of Sidekiq processes ... 1

Checking Sidekiq ... Finished

Reply by email is disabled in config/gitlab.yml
Checking LDAP ...

LDAP is disabled in config/gitlab.yml

Checking LDAP ... Finished

Checking GitLab ...

Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ... 
7/1 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.5 ? ... yes (2.3.6)
Git version >= 2.9.5 ? ... yes (2.14.3)
Git user has default SSH configuration? ... yes
Active users: ... 6
Elasticsearch version 5.1 - 5.5? ... skipped (elasticsearch is disabled)

Checking GitLab ... Finished

Possible fixes

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EDIT: formatting fail EDIT2: explain that the issues are imported correctly, but not the git repo