长话短说，我协助运营一个中小型 Discourse 站点（月浏览量约 25 万）。为了节省服务器的带宽和空间，我刚刚将备份和上传指向了 S3。不过，我也希望将目前本地存储的约 6GB 上传文件迁移到 S3 存储桶中。我尝试遵循这里的一些指南和支持材料，指向了 rake uploads:migrate_to_s3，但在执行时遇到了一些失败。
目前托管在 Digital Ocean VPS 上。
我看到 Uploads migration to S3 fails 这篇文章，情况与我现在遇到的非常相似。
以下是使用 launcher 进入应用后执行的（匿名化）命令日志：
root@discourse-s-2vcpu-4gb-nyc1-01-app:/var/www/discourse# DISCOURSE_S3_BUCKET=insert_bucket_here DISCOURSE_S3_REGION=us-east-2 DISCOURSE_S3_ACCESS_KEY_ID=AMAZON_SECRET_HERE DISCOURSE_S3_SECRET_ACCESS_KEY=SECRET_KEY_HERE rake uploads:migrate_to_s3 --trace
** Invoke uploads:migrate_to_s3 (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute uploads:migrate_to_s3
Migrating uploads to S3 for 'default'...
Some uploads were not migrated to the new scheme. Running the migration, this may take a while...
rake aborted!
FileStore::ToS3MigrationError: Some uploads could not be migrated to the new scheme. You need to fix this manually.
/var/www/discourse/lib/file_store/to_s3_migration.rb:155:in `migrate_to_s3'
/var/www/discourse/lib/file_store/to_s3_migration.rb:65:in `migrate'
/var/www/discourse/lib/tasks/uploads.rake:239:in `migrate_to_s3'
/var/www/discourse/lib/tasks/uploads.rake:218:in `block in migrate_to_s3_all_sites'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rails_multisite-2.1.2/lib/rails_multisite/connection_management.rb:64:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rails_multisite-2.1.2/lib/rails_multisite/connection_management.rb:74:in `each_connection'
/var/www/discourse/lib/tasks/uploads.rake:216:in `migrate_to_s3_all_sites'
/var/www/discourse/lib/tasks/uploads.rake:212:in `block in <top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `block in execute'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `execute'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:160:in `invoke_task'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block in top_level'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:125:in `run_with_threads'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:110:in `top_level'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:83:in `block in run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:80:in `run'
bin/rake:13:in `<top (required)>'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `load'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `kernel_load'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:28:in `run'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/cli.rb:476:in `exec'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor.rb:399:in `dispatch'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/cli.rb:30:in `dispatch'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/base.rb:476:in `start'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/cli.rb:24:in `start'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/exe/bundle:46:in `block in <top (required)>'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/friendly_errors.rb:123:in `with_friendly_errors'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/exe/bundle:34:in `<top (required)>'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `<main>'
Tasks: TOP => uploads:migrate_to_s3