fluentd-ui fails to start because of ruby gem 'activesupport'

[fmax]

docker container with: OS: Ubuntu 16.04 xenial td-agent 3.0.0-0 amd64

ruby gems: fluentd (0.14.11) fluentd-ui (0.4.3) rails (5.0.1, 4.2.7.1) activesupport (5.0.1, 4.2.7.1)

output when trying to start fluentd-ui: /opt/td-agent/embedded/bin/fluentd-ui start No entry for terminal type "dumb"; using dumb terminal settings. /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:121: warning: constant ::Fixnum is deprecated /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:121: warning: constant ::Bignum is deprecated /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:124:in block (2 levels) in ': stack level too deep (SystemStackError) from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:inblock (2 levels) in class:Numeric' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in block (2 levels) in ' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:inblock (2 levels) in class:Numeric' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in block (2 levels) in ' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:inblock (2 levels) in class:Numeric' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in block (2 levels) in ' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:inblock (2 levels) in class:Numeric' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/activesupport-4.2.7.1/lib/active_support/core_ext/numeric/conversions.rb:131:in block (2 levels) in ' ... 4053 levels... from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/thor-0.19.4/lib/thor/base.rb:444:instart' from /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-ui-0.4.3/bin/fluentd-ui:13:in <top (required)>' from /opt/td-agent/embedded/bin/fluentd-ui:22:inload' from /opt/td-agent/embedded/bin/fluentd-ui:22:in `

[uu59]

It is a Ruby 2.4/Rails 4.2.7.1 combination problem as described here: https://github.com/rails/rails/issues/25125

Please consider to downgrade Ruby to 2.3 or wait a Rails 4.2.8 release.

[fmax]

thank's for information - rails 4.2.8 is available: http://weblog.rubyonrails.org/2017/2/10/Rails-4-2-8-rc1-has-been-released/ so i installed this release - the error message has gone, but still fluentd-ui doesn't start. there is no logfile or error message to stdout. exit code is 0

i'm no ruby expert - is there a method to debug fluentd-ui? is there a workaround?

output from CLI: /opt/td-agent/embedded/bin/fluentd-ui setup No entry for terminal type "xterm"; using dumb terminal settings.

/opt/td-agent/embedded/bin/fluentd-ui start No entry for terminal type "xterm"; using dumb terminal settings.

echo $? 0

steps of installation i ran on my virtual-box with OS ubuntu 16 xenial: curl https://packages.treasuredata.com/GPG-KEY-td-agent | apt-key add - echo "deb http://packages.treasuredata.com/3/ubuntu/xenial/ xenial contrib" > /etc/apt/sources.list.d/treasure-data.list && apt-get update && apt-get install -y td-agent make automake gcc

/opt/td-agent/embedded/bin/gem install rails --version 4.2.8.rc1 --no-document /opt/td-agent/embedded/bin/gem install fluent-plugin-elasticsearch /opt/td-agent/embedded/bin/gem install fluent-plugin-concat /opt/td-agent/embedded/bin/gem install fluentd-ui

list of installed gems: /opt/td-agent/embedded/bin/gem list --local

LOCAL GEMS

actionmailer (4.2.8.rc1, 4.2.7.1) actionpack (4.2.8.rc1, 4.2.7.1) actionview (4.2.8.rc1, 4.2.7.1) activejob (4.2.8.rc1, 4.2.7.1) activemodel (4.2.8.rc1, 4.2.7.1) activerecord (4.2.8.rc1, 4.2.7.1) activesupport (4.2.8.rc1, 4.2.7.1) addressable (2.5.0) arel (6.0.4) aws-sdk (2.6.46) aws-sdk-core (2.6.46) aws-sdk-resources (2.6.46) aws-sigv4 (1.0.0) bigdecimal (default: 1.3.0) builder (3.2.3) bundler (1.13.3) bzip2-ffi (1.0.0) celluloid (0.15.2) concurrent-ruby (1.0.4) cool.io (1.4.5) did_you_mean (1.1.0) diff-lcs (1.3) draper (1.4.0) elasticsearch (5.0.0, 1.0.18) elasticsearch-api (5.0.0, 1.0.18) elasticsearch-transport (5.0.0, 1.0.18) erubis (2.7.0) excon (0.54.0) faraday (0.11.0) ffi (1.9.17) fluent-logger (0.6.2) fluent-mixin-config-placeholders (0.4.0) fluent-mixin-plaintextformatter (0.2.6) fluent-plugin-concat (2.0.1) fluent-plugin-elasticsearch (1.9.2) fluent-plugin-kafka (0.5.0) fluent-plugin-rewrite-tag-filter (1.5.5) fluent-plugin-s3 (1.0.0.rc1) fluent-plugin-td (0.10.29) fluent-plugin-td-monitoring (0.2.2) fluent-plugin-webhdfs (0.4.2) fluentd (0.14.11) fluentd-ui (0.4.3) font-awesome-rails (4.7.0.1) globalid (0.3.7) haml (4.0.7) haml-rails (0.5.3) hike (1.2.3) hirb (0.7.3) http_parser.rb (0.6.0) httpclient (2.8.2.4) i18n (0.8.0) io-console (default: 0.4.6) ipaddress (0.8.3) jbuilder (2.6.1) jmespath (1.3.1) jquery-rails (3.1.4) json (default: 2.0.2, 1.8.6) kramdown (1.13.2) kramdown-haml (0.0.3) loofah (2.0.3) ltsv (0.1.0) mail (2.6.4) mime-types (3.1) mime-types-data (3.2016.0521) mini_portile2 (2.1.0) minitest (5.10.1) mixlib-cli (1.7.0) mixlib-config (2.2.4) mixlib-log (1.7.1) mixlib-shellout (2.2.7) msgpack (1.0.2) multi_json (1.12.1) multipart-post (2.0.0) net-telnet (0.1.1) nokogiri (1.7.0.1) ohai (6.20.0) oj (2.18.0) openssl (default: 2.0.2) parallel (1.8.0) power_assert (0.4.1) psych (default: 2.2.2) public_suffix (2.0.5) puma (3.7.0) rack (1.6.5) rack-test (0.6.3) rails (4.2.8.rc1, 4.2.7.1) rails-deprecated_sanitizer (1.0.3) rails-dom-testing (1.0.8) rails-html-sanitizer (1.0.3) railties (4.2.8.rc1, 4.2.7.1) rake (12.0.0) rdoc (default: 5.0.0) request_store (1.3.2) ruby-kafka (0.3.16.beta2) ruby-progressbar (1.8.1) rubyzip (1.1.7) sass (3.2.19) sass-rails (4.0.5) serverengine (2.0.4) settingslogic (2.0.9) sigdump (0.2.4) sprockets (3.7.1, 2.12.4) sprockets-rails (3.2.0, 2.3.3) strptime (0.1.9) sucker_punch (1.0.5) systemu (2.5.2) td (0.15.2) td-client (0.8.85) td-logger (0.3.26) test-unit (3.2.3) thor (0.19.4) thread_safe (0.3.5) tilt (1.4.1) timers (1.1.0) tzinfo (1.2.2) tzinfo-data (1.2016.10) uuidtools (2.1.5) webhdfs (0.8.0) xmlrpc (0.2.1) yajl-ruby (1.3.0) zip-zip (0.3)

[uu59]

Hmm. Perhaps fluentd-ui is using 4.2.7.1 instead of 4.2.8.rc1 because 4.2.8 is still RC state. bundler (the dependency manager) ignore that version is reasonable.

[fmax]

rails 4.2.8 got released - https://rubygems.org/gems/rails/versions/4.2.8 I installed this version and uninstalled rc1 version but sadly still fluentd-ui wont start :(

/opt/td-agent/embedded/bin/gem list --local | egrep "action|active|rail|fluent" actionmailer (4.2.8) actionpack (4.2.8) actionview (4.2.8) activejob (4.2.8) activemodel (4.2.8) activerecord (4.2.8) activesupport (4.2.8) fluent-logger (0.6.2) fluent-mixin-config-placeholders (0.4.0) fluent-mixin-plaintextformatter (0.2.6) fluent-plugin-concat (2.0.1) fluent-plugin-elasticsearch (1.9.2) fluent-plugin-kafka (0.5.0) fluent-plugin-rewrite (0.1.0) fluent-plugin-rewrite-tag-filter (1.5.5) fluent-plugin-s3 (1.0.0.rc1) fluent-plugin-td (0.10.29) fluent-plugin-td-monitoring (0.2.2) fluent-plugin-webhdfs (0.4.2) fluentd (0.14.13) fluentd-ui (0.4.3) font-awesome-rails (4.7.0.1) haml-rails (0.5.3) jquery-rails (3.1.4) rails (4.2.8) rails-deprecated_sanitizer (1.0.3) rails-dom-testing (2.0.2, 1.0.8) rails-html-sanitizer (1.0.3) railties (4.2.8) sass-rails (4.0.5) sprockets-rails (2.3.3)

/opt/td-agent/embedded/bin/fluentd-ui start No entry for terminal type "dumb"; using dumb terminal settings. root@49f415f8d3f5:/# echo $? 0 root@49f415f8d3f5:/#

so why fluentd-ui wont start? any ideas? how to debug? some gems needed missing but not required?

[uu59]

Hmm. I can start fluentd-ui with Rails 4.2.8.

Could you check your log file located log/production.log?

[fmax]

sorry, but there isn't any logfile. my installation for docker container:

• Ubuntu 16.04 LTS
• td-agent 3.0.0-0 amd64
• /opt/td-agent/embedded/bin/gem install fluentd-ui
• /opt/td-agent/embedded/bin/gem install rails --version 4.2.8

/opt/td-agent/embedded/bin/gem list --local | grep -i "fluent" fluent-logger (0.6.2) fluent-mixin-config-placeholders (0.4.0) fluent-mixin-plaintextformatter (0.2.6) fluent-plugin-concat (2.0.1) fluent-plugin-elasticsearch (1.9.2) fluent-plugin-fields-parser (0.1.1) fluent-plugin-grok-parser (2.1.2) fluent-plugin-kafka (0.5.0) fluent-plugin-rewrite (0.1.0) fluent-plugin-rewrite-tag-filter (1.5.5) fluent-plugin-s3 (1.0.0.rc1) fluent-plugin-td (0.10.29) fluent-plugin-td-monitoring (0.2.2) fluent-plugin-webhdfs (0.4.2) fluentd (0.14.13) fluentd-ui (0.4.3)

/opt/td-agent/embedded/bin/fluentd-ui start --no-daemonize No entry for terminal type "dumb"; using dumb terminal settings. root@49f415f8d3f5:/# echo $? 0

how to debug? which td-agent and which ruby gems in what versions you have installed?

[nancykyo]

run into same situation here, any updates?

[okkez]

Outdated.

[LeoWare]

This is still a thing in the current version of Fluentd-UI with Ruby 3 on Ubuntu 20.04