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fluentd dies with unexpected error plugin=Fluent::Plugin::ForwardInput title=:event_loop error_class=Errno::ECONNREFUSED error="Connection refused - SSL_accept" #2694

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antoninblanc opened this issue Nov 13, 2019 · 1 comment · Fixed by #2695
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fluentd dies with unexpected error plugin=Fluent::Plugin::ForwardInput title=:event_loop error_class=Errno::ECONNREFUSED error="Connection refused - SSL_accept" #2694

antoninblanc opened this issue Nov 13, 2019 · 1 comment · Fixed by #2695
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@antoninblanc
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Describe the bug

2019-11-13 11:55:19 +0100 [warn]: thread exited by unexpected error plugin=Fluent::Plugin::ForwardInput title=:event_loop error_class=Errno::ECONNREFUSED error="Connection refused - SSL_accept"
2019-11-13 11:55:19 +0100 [error]: unexpected error error_class=Errno::ECONNREFUSED error="Connection refused - SSL_accept"
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/fluentd-1.7.4/lib/fluent/plugin_helper/server.rb:695:in `accept_nonblock'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/fluentd-1.7.4/lib/fluent/plugin_helper/server.rb:695:in `try_handshake'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/fluentd-1.7.4/lib/fluent/plugin_helper/server.rb:711:in `try_tls_accept'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/fluentd-1.7.4/lib/fluent/plugin_helper/server.rb:738:in `on_readable'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/cool.io-1.5.4/lib/cool.io/io.rb:186:in `on_readable'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/cool.io-1.5.4/lib/cool.io/loop.rb:88:in `run_once'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/cool.io-1.5.4/lib/cool.io/loop.rb:88:in `run'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/fluentd-1.7.4/lib/fluent/plugin_helper/event_loop.rb:93:in `block in start'
  2019-11-13 11:55:19 +0100 [error]: /usr/lib64/ruby/gems/2.4.0/gems/fluentd-1.7.4/lib/fluent/plugin_helper/thread.rb:78:in `block in thread_create'
2019-11-13 11:55:19 +0100 [error]: unexpected error error_class=Errno::ECONNREFUSED error="Connection refused - SSL_accept"

Your Environment

  • fluentd 1.7.4
  • Operating system: Gentoo Linux
  • Kernel version: 4.14.55-gentoo

Your Configuration

<source>
  @type forward
  bind ::
  port 24224
  <transport tls>
    cert_path /etc/letsencrypt/live/xxxxxxxxx/fullchain.pem
    private_key_path /etc/letsencrypt/live/xxxxxxxxx/privkey.pem
    private_key_passphrase
  </transport>
  <security>
    shared_key xxxxxxxxx
    self_hostname xxxxxxxxx
  </security>
</source>

Additional context

May be similar to #2135
@repeatedly repeatedly added the bug Something isn't working label Nov 14, 2019
repeatedly added a commit that referenced this issue Nov 14, 2019
@repeatedly
server: Ignore ECONNREFUSED in TLS accept to avoid fluentd restart. fix
b7ad979 
#2694

Signed-off-by: Masahiro Nakagawa <[email protected]>
@repeatedly repeatedly mentioned this issue Nov 14, 2019
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@repeatedly
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Ah, SSL_accept returns more different error...
Here is a patch: #2695

@antoninblanc antoninblanc mentioned this issue Jan 12, 2020
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server: Ignore ECONNREFUSED in TLS accept to avoid fluentd restart. fluent/fluentd
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@repeatedly @antoninblanc