2020-04-21 10:44:42 +0000 [info]: #0 starting fluentd worker pid=464 ppid=12 worker=0
2020-04-21 10:44:42 +0000 [error]: #0 unexpected error error_class=Faraday::ConnectionFailed error="503 \"Service Unavailable\""
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http/response.rb:122:in `error!'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http/response.rb:131:in `value'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http.rb:925:in `connect'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http.rb:887:in `do_start'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http.rb:876:in `start'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http.rb:1407:in `request'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/2.4.0/net/http.rb:1165:in `get'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday-0.17.3/lib/faraday/adapter/net_http.rb:85:in `perform_request'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday-0.17.3/lib/faraday/adapter/net_http.rb:43:in `block in call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday-0.17.3/lib/faraday/adapter/net_http.rb:92:in `with_net_http_connection'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday-0.17.3/lib/faraday/adapter/net_http.rb:38:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday_middleware-0.14.0/lib/faraday_middleware/response/follow_redirects.rb:87:in `perform_with_redirection'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday_middleware-0.14.0/lib/faraday_middleware/response/follow_redirects.rb:75:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday-0.17.3/lib/faraday/rack_builder.rb:143:in `build_response'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/faraday-0.17.3/lib/faraday/connection.rb:387:in `run_request'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/http_response_helper.rb:27:in `set_up_response'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/http/http_request.rb:149:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/http/signer_filter.rb:28:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/http/signer_filter.rb:28:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/http/http_request.rb:110:in `block in with_filter'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/service.rb:36:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/filtered_service.rb:34:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-core-0.1.15/lib/azure/core/signed_service.rb:41:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-storage-common-1.1.0/lib/azure/storage/common/service/storage_service.rb:60:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-storage-blob-1.1.0/lib/azure/storage/blob/blob_service.rb:179:in `call'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/azure-storage-blob-1.1.0/lib/azure/storage/blob/blob_service.rb:252:in `list_containers'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluent-plugin-azure-storage-append-blob-0.1.1/lib/fluent/plugin/out_azure-storage-append-blob.rb:108:in `ensure_container'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluent-plugin-azure-storage-append-blob-0.1.1/lib/fluent/plugin/out_azure-storage-append-blob.rb:72:in `start'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:200:in `block in start'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:189:in `block (2 levels) in lifecycle'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:188:in `each'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:188:in `block in lifecycle'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:175:in `each'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:175:in `lifecycle'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/root_agent.rb:199:in `start'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/engine.rb:248:in `start'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/engine.rb:147:in `run'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/supervisor.rb:596:in `block in run_worker'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/supervisor.rb:831:in `main_process'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/supervisor.rb:590:in `run_worker'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/lib/fluent/command/fluentd.rb:338:in `<top (required)>'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:68:in `require'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:68:in `require'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.10.0/bin/fluentd:8:in `<top (required)>'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/bin/fluentd:23:in `load'
  2020-04-21 10:44:42 +0000 [error]: #0 /opt/td-agent/embedded/bin/fluentd:23:in `<main>'
2020-04-21 10:44:42 +0000 [error]: #0 unexpected error error_class=Faraday::ConnectionFailed error="503 \"Service Unavailable\""
  2020-04-21 10:44:42 +0000 [error]: #0 suppressed same stacktrace
2020-04-21 10:44:42 +0000 [info]: Worker 0 finished unexpectedly with status 1