--- stage: Create group: Source Code info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments" type: reference, howto disqus_identifier: 'https://docs.gitlab.com/ee/workflow/lfs/lfs_administration.html' --- # GitLab Git Large File Storage (LFS) Administration **(FREE SELF)** > - Git LFS is supported in GitLab starting with version 8.2. > - Support for object storage, such as AWS S3, was introduced in 10.0. > - LFS is enabled in GitLab self-managed instances by default. Documentation about how to use Git LFS are under [Managing large binary files with Git LFS doc](../../topics/git/lfs/index.md). ## Requirements - Users need to install [Git LFS client](https://git-lfs.github.com) version 1.0.1 or later. ## Configuration Git LFS objects can be large in size. By default, they are stored on the server GitLab is installed on. There are various configuration options to help GitLab server administrators: - Enabling/disabling Git LFS support. - Changing the location of LFS object storage. - Setting up object storage supported by [Fog](http://fog.io/about/provider_documentation.html). ### Configuration for Omnibus installations In `/etc/gitlab/gitlab.rb`: ```ruby # Change to true to enable lfs - enabled by default if not defined gitlab_rails['lfs_enabled'] = false # Optionally, change the storage path location. Defaults to # `#{gitlab_rails['shared_path']}/lfs-objects`. Which evaluates to # `/var/opt/gitlab/gitlab-rails/shared/lfs-objects` by default. gitlab_rails['lfs_storage_path'] = "/mnt/storage/lfs-objects" ``` After you update settings in `/etc/gitlab/gitlab.rb`, run [Omnibus GitLab reconfigure](../restart_gitlab.md#omnibus-gitlab-reconfigure). ### Configuration for installations from source In `config/gitlab.yml`: ```yaml # Change to true to enable lfs lfs: enabled: false storage_path: /mnt/storage/lfs-objects ``` ## Storing LFS objects in remote object storage You can store LFS objects in remote object storage. This allows you to offload reads and writes to the local disk, and free up disk space significantly. GitLab is tightly integrated with `Fog`, so you can refer to its [documentation](http://fog.io/about/provider_documentation.html) to check which storage services can be integrated with GitLab. You can also use external object storage in a private local network. For example, [MinIO](https://min.io/) is a standalone object storage service that works with GitLab instances. GitLab provides two different options for the uploading mechanism: "Direct upload" and "Background upload". [Read more about using object storage with GitLab](../object_storage.md). NOTE: In GitLab 13.2 and later, we recommend using the [consolidated object storage settings](../object_storage.md#consolidated-object-storage-configuration). This section describes the earlier configuration format. **Option 1. Direct upload** 1. User pushes an `lfs` file to the GitLab instance. 1. GitLab-workhorse uploads the file directly to the external object storage. 1. GitLab-workhorse notifies GitLab-rails that the upload process is complete. **Option 2. Background upload** 1. User pushes an `lfs` file to the GitLab instance. 1. GitLab-rails stores the file in the local file storage. 1. GitLab-rails then uploads the file to the external object storage asynchronously. The following general settings are supported. | Setting | Description | Default | |---------------------|-------------|---------| | `enabled` | Enable/disable object storage. | `false` | | `remote_directory` | The bucket name where LFS objects are stored. | | | `direct_upload` | Set to true to enable direct upload of LFS without the need of local shared storage. Option may be removed after we decide to support only single storage for all files. | `false` | | `background_upload` | Set to false to disable automatic upload. Option may be removed once upload is direct to S3. | `true` | | `proxy_download` | Set to true to enable proxying all files served. Option allows to reduce egress traffic as this allows clients to download directly from remote storage instead of proxying all data. | `false` | | `connection` | Various connection options described below. | | See [the available connection settings for different providers](../object_storage.md#connection-settings). Here is a configuration example with S3. ### Manual uploading to an object storage There are two ways to manually do the same thing as automatic uploading (described above). **Option 1: Rake task** ```shell gitlab-rake gitlab:lfs:migrate ``` **Option 2: Rails console** Log into the Rails console: ```shell sudo gitlab-rails console ``` Upload LFS files manually ```ruby LfsObject.where(file_store: [nil, 1]).find_each do |lfs_object| lfs_object.file.migrate!(ObjectStorage::Store::REMOTE) if lfs_object.file.file.exists? end ``` ### S3 for Omnibus installations On Omnibus GitLab installations, the settings are prefixed by `lfs_object_store_`: 1. Edit `/etc/gitlab/gitlab.rb` and add the following lines, replacing values based on your needs: ```ruby gitlab_rails['lfs_object_store_enabled'] = true gitlab_rails['lfs_object_store_remote_directory'] = "lfs-objects" gitlab_rails['lfs_object_store_connection'] = { 'provider' => 'AWS', 'region' => 'eu-central-1', 'aws_access_key_id' => '1ABCD2EFGHI34JKLM567N', 'aws_secret_access_key' => 'abcdefhijklmnopQRSTUVwxyz0123456789ABCDE', # The below options configure an S3 compatible host instead of AWS 'host' => 'localhost', 'endpoint' => 'http://127.0.0.1:9000', 'path_style' => true } ``` 1. Save the file, and then [reconfigure GitLab](../restart_gitlab.md#omnibus-gitlab-reconfigure) for the changes to take effect. 1. Migrate any existing local LFS objects to the object storage: ```shell gitlab-rake gitlab:lfs:migrate ``` This migrates existing LFS objects to object storage. New LFS objects are forwarded to object storage unless `gitlab_rails['lfs_object_store_background_upload']` and `gitlab_rails['lfs_object_store_direct_upload']` is set to `false`. 1. (Optional) Verify all files migrated properly. From [PostgreSQL console](https://docs.gitlab.com/omnibus/settings/database.html#connecting-to-the-bundled-postgresql-database) (`sudo gitlab-psql -d gitlabhq_production`) verify `objectstg` below (where `file_store=2`) has count of all artifacts: ```shell gitlabhq_production=# SELECT count(*) AS total, sum(case when file_store = '1' then 1 else 0 end) AS filesystem, sum(case when file_store = '2' then 1 else 0 end) AS objectstg FROM lfs_objects; total | filesystem | objectstg ------+------------+----------- 2409 | 0 | 2409 ``` Verify no files on disk in `artifacts` folder: ```shell sudo find /var/opt/gitlab/gitlab-rails/shared/lfs-objects -type f | grep -v tmp/cache | wc -l ``` ### S3 for installations from source For source installations the settings are nested under `lfs:` and then `object_store:`: 1. Edit `/home/git/gitlab/config/gitlab.yml` and add or amend the following lines: ```yaml lfs: enabled: true object_store: enabled: false remote_directory: lfs-objects # Bucket name connection: provider: AWS aws_access_key_id: 1ABCD2EFGHI34JKLM567N aws_secret_access_key: abcdefhijklmnopQRSTUVwxyz0123456789ABCDE region: eu-central-1 # Use the following options to configure an AWS compatible host such as Minio host: 'localhost' endpoint: 'http://127.0.0.1:9000' path_style: true ``` 1. Save the file, and then [restart GitLab](../restart_gitlab.md#installations-from-source) for the changes to take effect. 1. Migrate any existing local LFS objects to the object storage: ```shell sudo -u git -H bundle exec rake gitlab:lfs:migrate RAILS_ENV=production ``` This migrates existing LFS objects to object storage. New LFS objects are forwarded to object storage unless `background_upload` and `direct_upload` is set to `false`. 1. (Optional) Verify all files migrated properly. From PostgreSQL console (`sudo -u git -H psql -d gitlabhq_production`) verify `objectstg` below (where `file_store=2`) has count of all artifacts: ```shell gitlabhq_production=# SELECT count(*) AS total, sum(case when file_store = '1' then 1 else 0 end) AS filesystem, sum(case when file_store = '2' then 1 else 0 end) AS objectstg FROM lfs_objects; total | filesystem | objectstg ------+------------+----------- 2409 | 0 | 2409 ``` Verify no files on disk in `artifacts` folder: ```shell sudo find /var/opt/gitlab/gitlab-rails/shared/lfs-objects -type f | grep -v tmp/cache | wc -l ``` ### Migrating back to local storage To migrate back to local storage: 1. Set both `direct_upload` and `background_upload` to `false` under the LFS object storage settings. Don't forget to restart GitLab. 1. Run `rake gitlab:lfs:migrate_to_local` on your console. 1. Disable `object_storage` for LFS objects in `gitlab.rb`. Remember to restart GitLab afterwards. ## Storage statistics You can see the total storage used for LFS objects on groups and projects: - In the administration area. - In the [groups](../../api/groups.md) and [projects APIs](../../api/projects.md). ## Troubleshooting: `Google::Apis::TransmissionError: execution expired` If LFS integration is configured with Google Cloud Storage and background uploads (`background_upload: true` and `direct_upload: false`), Sidekiq workers may encounter this error. This is because the uploading timed out with very large files. LFS files up to 6 GB can be uploaded without any extra steps, otherwise you need to use the following workaround. Sign in to Rails console: ```shell sudo gitlab-rails console ``` Set up timeouts: - These settings are only in effect for the same session. For example, they are not effective for Sidekiq workers. - 20 minutes (1200 sec) is enough to upload 30GB LFS files: ```ruby ::Google::Apis::ClientOptions.default.open_timeout_sec = 1200 ::Google::Apis::ClientOptions.default.read_timeout_sec = 1200 ::Google::Apis::ClientOptions.default.send_timeout_sec = 1200 ``` Upload LFS files manually (this process does not use Sidekiq at all): ```ruby LfsObject.where(file_store: [nil, 1]).find_each do |lfs_object| lfs_object.file.migrate!(ObjectStorage::Store::REMOTE) if lfs_object.file.file.exists? end ``` See more information in [!19581](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/19581) ## Known limitations - Support for removing unreferenced LFS objects was added in 8.14 onward. - LFS authentications via SSH was added with GitLab 8.12. - Only compatible with the Git LFS client versions 1.1.0 and later, or 1.0.2. - The storage statistics count each LFS object multiple times for every project linking to it.