fluent-plugin-prometheus-2.0.3 breaks with fluent/fluentd:v1.15.1-1.0 (Async version incompatibility?)

[thomas315]

Hello,

my specs:
fluent/fluentd:v1.15.1-1.0
fluent-plugin-prometheus-2.0.3

Latest version seems to not be compatible with fluentd anymore.

I'm getting following error message:

{"time":"2022-08-02T13:40:22.517736585+0000","level":"error","message":"unexpected error error_class=ArgumentError error="unknown keyword: :logger"","worker_id":0}
{"time":"2022-08-02T13:40:22.517848504+0000","level":"error","worker_id":0,"message":"/usr/lib/ruby/gems/3.1.0/gems/async-2.0.3/lib/async/scheduler.rb:39:in initialize'\n/usr/lib/ruby/gems/3.1.0/gems/async-2.0.3/lib/async/reactor.rb:32:in initialize'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/plugin_helper/http_server/server.rb:41:in new'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/plugin_ helper/http_server/server.rb:41:in initialize'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/plugin_helper/http_server.rb:69:in new'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/plugin_helper/http_server.rb:69:in http_server_create_http_server'\n/usr/lib/ruby/gems/3.1.0/gems/fluent-plugin-prometheus-2.0.3/lib/fluent/plugin/in_prometheus.rb:109:in start'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd- 1.15.1/lib/fluent/root_agent.rb:203:in block in start'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/root_agent.rb:192:in block (2 levels) in lifecycle'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/root_agent.rb:191:in each'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/root_agent.rb:191:in block in lifecycle'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/root_agent.rb:1 78:in each'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/root_agent.rb:178:in lifecycle'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/root_agent.rb:202:in start'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/engine.rb:248:in start'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/engine.rb:147:in run'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/supervisor.rb:
760:in block in run_worker'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/supervisor.rb:1036:in main_process'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/supervisor.rb:751:in run_worker'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/lib/fluent/command/fluentd.rb:386:in <top (required)>'\ninternal:/usr/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb:85:in require'\n<internal:/usr/lib/ru by/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in require'\n/usr/lib/ruby/gems/3.1.0/gems/fluentd-1.15.1/bin/fluentd:15:in <top (required)>'\n/usr/bin/fluentd:25:in load'\n/usr/bin/fluentd:25:in `

'"}

I found related issues that might explain the error:
In fluentd's dependency management "async" should not be used with v2
fluent/fluentd#3592

In fluentd-docker-image the async-http version was updated and needs async v2 now as mentioned in above issue.
gem install async-http -v 0.56.6
dd348f2

So I'm not sure if the prometheus plugin needs to be fixed or if the latest fluentd image should not increase the async-http version too much.
If I customize fluent/fluentd:v1.15.1-1.0 myself by uninstalling async-http and installing async-http:0.54.0 everything works fine.

[ashie]

Thanks for your report!
It's out docker image's fault, so we are now rebuilding it.
Please wait for a while to complete it.

[ashie]

Completed to build & upload.