无法优化图像：未知原因

snikch · 2022 年2 月 23 日 19:03

大家好

我们刚刚完成了一个论坛从一台服务器迁移到另一台服务器的操作，同时更改了域名。

在新安装中，我们在日志中看到了很多此类错误：

lib/discourse.rb:810:in `block in warn'
lib/discourse.rb:804:in `each'
lib/discourse.rb:804:in `warn'
/var/www/discourse/app/models/optimized_image.rb:329:in `rescue in convert_with'
/var/www/discourse/app/models/optimized_image.rb:311:in `convert_with'
/var/www/discourse/app/models/optimized_image.rb:305:in `optimize'
/var/www/discourse/app/models/optimized_image.rb:289:in `resize'
/var/www/discourse/app/models/optimized_image.rb:97:in `block in create_for'
/var/www/discourse/app/models/optimized_image.rb:19:in `block in lock'
/var/www/discourse/lib/distributed_mutex.rb:33:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:14:in `synchronize'
/var/www/discourse/app/models/optimized_image.rb:18:in `lock'
/var/www/discourse/app/models/optimized_image.rb:68:in `create_for'
/var/www/discourse/app/models/upload.rb:167:in `rescue in get_optimized_image'
/var/www/discourse/app/models/upload.rb:161:in `get_optimized_image'
/var/www/discourse/app/models/upload.rb:147:in `create_thumbnail!'
/var/www/discourse/lib/cooked_post_processor.rb:281:in `convert_to_link!'
/var/www/discourse/lib/cooked_post_processor.rb:487:in `block in post_process_images'
nokogiri-1.13.3-x86_64-linux/lib/nokogiri/xml/node_set.rb:233:in `block in each'
nokogiri-1.13.3-x86_64-linux/lib/nokogiri/xml/node_set.rb:232:in `upto'
nokogiri-1.13.3-x86_64-linux/lib/nokogiri/xml/node_set.rb:232:in `each'
/var/www/discourse/lib/cooked_post_processor.rb:486:in `post_process_images'
/var/www/discourse/lib/cooked_post_processor.rb:44:in `block in post_process'
/var/www/discourse/lib/distributed_mutex.rb:33:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:14:in `synchronize'
/var/www/discourse/lib/cooked_post_processor.rb:40:in `post_process'
/var/www/discourse/app/jobs/regular/process_post.rb:26:in `block in execute'
/var/www/discourse/lib/distributed_mutex.rb:33:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:14:in `synchronize'
/var/www/discourse/app/jobs/regular/process_post.rb:10:in `execute'
/var/www/discourse/app/jobs/base.rb:232:in `block (2 levels) in perform'
rails_multisite-4.0.0/lib/rails_multisite/connection_management.rb:80:in `with_connection'
/var/www/discourse/app/jobs/base.rb:221:in `block in perform'
/var/www/discourse/app/jobs/base.rb:217:in `each'
/var/www/discourse/app/jobs/base.rb:217:in `perform'
sidekiq-6.4.1/lib/sidekiq/processor.rb:196:in `execute_job'
sidekiq-6.4.1/lib/sidekiq/processor.rb:164:in `block (2 levels) in process'
sidekiq-6.4.1/lib/sidekiq/middleware/chain.rb:138:in `block in invoke'
/var/www/discourse/lib/sidekiq/pausable.rb:138:in `call'
sidekiq-6.4.1/lib/sidekiq/middleware/chain.rb:140:in `block in invoke'
sidekiq-6.4.1/lib/sidekiq/middleware/chain.rb:143:in `invoke'
sidekiq-6.4.1/lib/sidekiq/processor.rb:163:in `block in process'
sidekiq-6.4.1/lib/sidekiq/processor.rb:136:in `block (6 levels) in dispatch'
sidekiq-6.4.1/lib/sidekiq/job_retry.rb:114:in `local'
sidekiq-6.4.1/lib/sidekiq/processor.rb:135:in `block (5 levels) in dispatch'
sidekiq-6.4.1/lib/sidekiq.rb:40:in `block in <module:Sidekiq>'
sidekiq-6.4.1/lib/sidekiq/processor.rb:131:in `block (4 levels) in dispatch'
sidekiq-6.4.1/lib/sidekiq/processor.rb:257:in `stats'
sidekiq-6.4.1/lib/sidekiq/processor.rb:126:in `block (3 levels) in dispatch'
sidekiq-6.4.1/lib/sidekiq/job_logger.rb:13:in `call'
sidekiq-6.4.1/lib/sidekiq/processor.rb:125:in `block (2 levels) in dispatch'
sidekiq-6.4.1/lib/sidekiq/job_retry.rb:81:in `global'
sidekiq-6.4.1/lib/sidekiq/processor.rb:124:in `block in dispatch'
sidekiq-6.4.1/lib/sidekiq/job_logger.rb:39:in `prepare'
sidekiq-6.4.1/lib/sidekiq/processor.rb:123:in `dispatch'
sidekiq-6.4.1/lib/sidekiq/processor.rb:162:in `process'
sidekiq-6.4.1/lib/sidekiq/processor.rb:78:in `process_one'
sidekiq-6.4.1/lib/sidekiq/processor.rb:68:in `run'
sidekiq-6.4.1/lib/sidekiq/util.rb:56:in `watchdog'
sidekiq-6.4.1/lib/sidekiq/util.rb:65:in `block in safe_thread'

查看代码，似乎如果错误不包含 convert: ，则会使用此通用错误消息，从而掩盖了实际的底层错误。

github.com/discourse/discourse

app/models/optimized_image.rb

main


      
              -profile
              #{File.join(Rails.root, "vendor", "data", "RT_sRGB.icm")}
              #{to}
            }
          end
          
          def self.resize(from, to, width, height, opts = {})
            optimize("resize", from, to, "#{width}x#{height}", opts)
          end
          
          def self.crop(from, to, width, height, opts = {})
            optimize("crop", from, to, "#{width}x#{height}", opts)
          end
          
          def self.downsize(from, to, dimensions, opts = {})
            optimize("downsize", from, to, dimensions, opts)
          end
          
          def self.optimize(operation, from, to, dimensions, opts = {})
            method_name = "#{operation}_instructions"

我觉得这可能是我们缺少一个必需的库，或者在迁移过程中某些文件丢失了，但由于没有错误消息，很难说。有人有什么想法，我应该从哪里开始查找吗？

sam · 2022 年2 月 23 日 23:17

我猜是ImageMagick版本过旧。

你能确认你使用的是我们的官方设置吗？当我们运行./launcher rebuild时，我们总是会拉取最新的基础镜像版本。

snikch · 2022 年2 月 24 日 21:07

嘿 Sam，是的，我们正在使用 ./launcher，并且在过去一周内已经重建了好几次。

有没有办法可以快速地 monkey patch 这个脚本来发出底层错误？我的 Ruby 有点生疏，我可以直接编辑一个文件，还是有缓存/编译在起作用？

snikch · 2022 年2 月 24 日 21:31

实际上，检查我们的日志，这个错误自前几天以来就没有出现过了。也许这只是我们迁移期间的一个问题

sam · 2022 年2 月 24 日 22:42

我的猜测是当时上传文件丢失了。我们尝试优化图片并进行转换，但那里没有文件。

我们的错误消息肯定可以改进。

至于调试，如果你需要的话。我会编辑容器内的文件，并添加一些 Discourse.warn 调用（这基本上是向日志打印）。修改文件后重启容器。

system · 2022 年3 月 26 日 22:43

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.

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无法优化图像：未知原因

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