Clean up

GitLab provides Rake tasks for cleaning up GitLab instances.

Remove unreferenced LFS files

Introduced in GitLab 12.10.

Danger: Do not run this within 12 hours of a GitLab upgrade. This is to ensure that all background migrations have finished, which otherwise may lead to data loss.

When you remove LFS files from a repository’s history, they become orphaned and continue to consume disk space. With this Rake task, you can remove invalid references from the database, which will allow garbage collection of LFS files.

For example: 

# omnibus-gitlab
sudo gitlab-rake gitlab:cleanup:orphan_lfs_file_references PROJECT_PATH="gitlab-org/gitlab-foss"

# installation from source
bundle exec rake gitlab:cleanup:orphan_lfs_file_references RAILS_ENV=production PROJECT_PATH="gitlab-org/gitlab-foss"

You can also specify the project with PROJECT_ID instead of PROJECT_PATH.

For example: 

$ sudo gitlab-rake gitlab:cleanup:orphan_lfs_file_references PROJECT_PATH="gitlab-org/gitlab-foss"
I, [2019-12-13T16:35:31.764962 #82356]  INFO -- :  Looking for orphan LFS files for project GitLab Org / GitLab Foss
I, [2019-12-13T16:35:31.923659 #82356]  INFO -- :  Removed invalid references: 12

By default, this task does not delete anything but shows how many file references it can delete. Run the command with DRY_RUN=false if you actually want to delete the references. You can also use LIMIT={number} parameter to limit the number of deleted references.

Note that this Rake task only removes the references to LFS files. Unreferenced LFS files will be garbage-collected later (once a day). If you need to garbage collect them immediately, run rake gitlab:cleanup:orphan_lfs_files described below.

Remove unreferenced LFS files immediately

Introduced in GitLab 12.10.

Unreferenced LFS files are removed on a daily basis but you can remove them immediately if you need to. For example: 

# omnibus-gitlab
sudo gitlab-rake gitlab:cleanup:orphan_lfs_files

# installation from source
bundle exec rake gitlab:cleanup:orphan_lfs_files

Example output: 

$ sudo gitlab-rake gitlab:cleanup:orphan_lfs_files
I, [2020-01-08T20:51:17.148765 #43765]  INFO -- : Removed unreferenced LFS files: 12

Clean up project upload files

Clean up project upload files if they don’t exist in GitLab database.

Clean up project upload files from filesystem

Introduced in GitLab 11.2.

Clean up local project upload files if they don’t exist in GitLab database. The task attempts to fix the file if it can find its project, otherwise it moves the file to a lost and found directory. 

# omnibus-gitlab
sudo gitlab-rake gitlab:cleanup:project_uploads

# installation from source
bundle exec rake gitlab:cleanup:project_uploads RAILS_ENV=production

Example output: 

$ sudo gitlab-rake gitlab:cleanup:project_uploads

I, [2018-07-27T12:08:27.671559 #89817]  INFO -- : Looking for orphaned project uploads to clean up. Dry run...
D, [2018-07-27T12:08:28.293568 #89817] DEBUG -- : Processing batch of 500 project upload file paths, starting with /opt/gitlab/embedded/service/gitlab-rails/public/uploads/test.out
I, [2018-07-27T12:08:28.689869 #89817]  INFO -- : Can move to lost and found /opt/gitlab/embedded/service/gitlab-rails/public/uploads/test.out -> /opt/gitlab/embedded/service/gitlab-rails/public/uploads/-/project-lost-found/test.out
I, [2018-07-27T12:08:28.755624 #89817]  INFO -- : Can fix /opt/gitlab/embedded/service/gitlab-rails/public/uploads/foo/bar/89a0f7b0b97008a4a18cedccfdcd93fb/foo.txt -> /opt/gitlab/embedded/service/gitlab-rails/public/uploads/qux/foo/bar/89a0f7b0b97008a4a18cedccfdcd93fb/foo.txt
I, [2018-07-27T12:08:28.760257 #89817]  INFO -- : Can move to lost and found /opt/gitlab/embedded/service/gitlab-rails/public/uploads/foo/bar/1dd6f0f7eefd2acc4c2233f89a0f7b0b/image.png -> /opt/gitlab/embedded/service/gitlab-rails/public/uploads/-/project-lost-found/foo/bar/1dd6f0f7eefd2acc4c2233f89a0f7b0b/image.png
I, [2018-07-27T12:08:28.764470 #89817]  INFO -- : To cleanup these files run this command with DRY_RUN=false

$ sudo gitlab-rake gitlab:cleanup:project_uploads DRY_RUN=false
I, [2018-07-27T12:08:32.944414 #89936]  INFO -- : Looking for orphaned project uploads to clean up...
D, [2018-07-27T12:08:33.293568 #89817] DEBUG -- : Processing batch of 500 project upload file paths, starting with /opt/gitlab/embedded/service/gitlab-rails/public/uploads/test.out
I, [2018-07-27T12:08:33.689869 #89817]  INFO -- : Did move to lost and found /opt/gitlab/embedded/service/gitlab-rails/public/uploads/test.out -> /opt/gitlab/embedded/service/gitlab-rails/public/uploads/-/project-lost-found/test.out
I, [2018-07-27T12:08:33.755624 #89817]  INFO -- : Did fix /opt/gitlab/embedded/service/gitlab-rails/public/uploads/foo/bar/89a0f7b0b97008a4a18cedccfdcd93fb/foo.txt -> /opt/gitlab/embedded/service/gitlab-rails/public/uploads/qux/foo/bar/89a0f7b0b97008a4a18cedccfdcd93fb/foo.txt
I, [2018-07-27T12:08:33.760257 #89817]  INFO -- : Did move to lost and found /opt/gitlab/embedded/service/gitlab-rails/public/uploads/foo/bar/1dd6f0f7eefd2acc4c2233f89a0f7b0b/image.png -> /opt/gitlab/embedded/service/gitlab-rails/public/uploads/-/project-lost-found/foo/bar/1dd6f0f7eefd2acc4c2233f89a0f7b0b/image.png

Clean up project upload files from object storage

Introduced in GitLab 11.2.

Move object store upload files to a lost and found directory if they don’t exist in GitLab database. 

# omnibus-gitlab
sudo gitlab-rake gitlab:cleanup:remote_upload_files

# installation from source
bundle exec rake gitlab:cleanup:remote_upload_files RAILS_ENV=production

Example output: 

$ sudo gitlab-rake gitlab:cleanup:remote_upload_files

I, [2018-08-02T10:26:13.995978 #45011]  INFO -- : Looking for orphaned remote uploads to remove. Dry run...
I, [2018-08-02T10:26:14.120400 #45011]  INFO -- : Can be moved to lost and found: @hashed/6b/DSC_6152.JPG
I, [2018-08-02T10:26:14.120482 #45011]  INFO -- : Can be moved to lost and found: @hashed/79/02/7902699be42c8a8e46fbbb4501726517e86b22c56a189f7625a6da49081b2451/711491b29d3eb08837798c4909e2aa4d/DSC00314.jpg
I, [2018-08-02T10:26:14.120634 #45011]  INFO -- : To cleanup these files run this command with DRY_RUN=false

$ sudo gitlab-rake gitlab:cleanup:remote_upload_files DRY_RUN=false

I, [2018-08-02T10:26:47.598424 #45087]  INFO -- : Looking for orphaned remote uploads to remove...
I, [2018-08-02T10:26:47.753131 #45087]  INFO -- : Moved to lost and found: @hashed/6b/DSC_6152.JPG -> lost_and_found/@hashed/6b/DSC_6152.JPG
I, [2018-08-02T10:26:47.764356 #45087]  INFO -- : Moved to lost and found: @hashed/79/02/7902699be42c8a8e46fbbb4501726517e86b22c56a189f7625a6da49081b2451/711491b29d3eb08837798c4909e2aa4d/DSC00314.jpg -> lost_and_found/@hashed/79/02/7902699be42c8a8e46fbbb4501726517e86b22c56a189f7625a6da49081b2451/711491b29d3eb08837798c4909e2aa4d/DSC00314.jpg

Remove orphan artifact files

Version history

When you notice there are more job artifacts files on disk than there should be, you can run: 

sudo gitlab-rake gitlab:cleanup:orphan_job_artifact_files

This command:

  • Scans through the entire artifacts folder.
  • Checks which files still have a record in the database.
  • If no database record is found, the file is deleted from disk.

By default, this task does not delete anything but shows what it can delete. Run the command with DRY_RUN=false if you actually want to delete the files: 

sudo gitlab-rake gitlab:cleanup:orphan_job_artifact_files DRY_RUN=false

You can also limit the number of files to delete with LIMIT: 

sudo gitlab-rake gitlab:cleanup:orphan_job_artifact_files LIMIT=100

This will only delete up to 100 files from disk. You can use this to delete a small set for testing purposes.

If you provide DEBUG=1, you’ll see the full path of every file that is detected as being an orphan.

If ionice is installed, the tasks uses it to ensure the command is not causing too much load on the disk. You can configure the niceness level with NICENESS. Below are the valid levels, but consult man 1 ionice to be sure.

  • 0 or None
  • 1 or Realtime
  • 2 or Best-effort (default)
  • 3 or Idle

Remove expired ActiveSession lookup keys

Introduced in GitLab 12.2. 

# omnibus-gitlab
sudo gitlab-rake gitlab:cleanup:sessions:active_sessions_lookup_keys

# installation from source
bundle exec rake gitlab:cleanup:sessions:active_sessions_lookup_keys RAILS_ENV=production

Container Registry garbage collection

Container Registry can use considerable amounts of disk space. To clear up unused layers, the registry includes a garbage collect command.