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FluentdでS3にログをアップする

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Fluentdのインストール

$ sudo curl -L https://toolbelt.treasuredata.com/sh/install-redhat-td-agent2.sh | sh
$ sudo td-agent-gem install fluent-plugin-config-expander fluent-plugin-tail-asis fluent-plugin-file-alternative fluent-plugin-forest

$ sudo mkdir /var/log/td-agent/pos
$ sudo mkdir /var/log/td-agent/buffer
$ sudo chown -R td-agent. /var/log/td-agent

conf設定

$ sudo vi /etc/td-agent/td-agent.conf
--------------------------------------------------------------------------------
<source>
  type config_expander
  <config>
    type tail
    format none
    path /var/log/ec2-user/XXXX.log
    pos_file /var/log/td-agent/pos/XXXX.pos
    tag api_${hostname}/XXXX
  </config>
</source>

<source>
  type config_expander
  <config>
    type tail
    format none
    path /var/log/ec2-user/XXXX.log
    pos_file /var/log/td-agent/pos/XXXX.pos
    tag api_${hostname}/XXXX
  </config>
</source>

<match *.**>
  type forest
  subtype s3
   <template>
    aws_key_id XXXX
    aws_sec_key XXXX
    s3_bucket XXXX
    s3_region ap-northeast-1

    path
    buffer_path /var/log/td-agent/buffer/${tag}
    time_slice_format %Y/%m/%d/${tag}/ec2-%Y-%m-%d-%H
    retry_wait 30s
    retry_limit 5
    flush_interval 1h
    flush_at_shutdown true
   </template>
</match>

起動と自動起動

$ sudo /etc/init.d/td-agent start
$ sudo chkconfig td-agent on

リブート時のfuluentdの実行

$ sudo crontab -e
--------------------------------------------------------------------------------
@reboot /bin/bash -lc '/etc/init.d/td-agent restart 1>/tmp/td-agent-restart.log 2>&1'

つまづいた事

fluent-plugin-tail-asis(type tail_asis)を使用していたが下記のようなエラーが発生し起動できない。解決策は見つからず。tailに変更した。

  • uninitialized constant Fluent::TailInput (NameError)
  • dry run failed: uninitialized constant Fluent::TailInput

未解決

@reboot時にfluentdがログをS3に飛ばしてくれない

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