Software: Apache. PHP/5.6.40 

uname -a: Linux cpanel06wh.bkk1.cloud.z.com 2.6.32-954.3.5.lve1.4.80.el6.x86_64 #1 SMP Thu Sep 24
01:42:00 EDT 2020 x86_64 

uid=851(cp949260) gid=853(cp949260) groups=853(cp949260) 

Safe-mode: OFF (not secure)

/opt/td-agent/embedded/lib/ruby/gems/2.4.0/gems/fluentd-1.7.0/example/   drwxrwxr-x
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Viewing file:     out_null.conf (722 B)      -rw-rw-r--

#
# bundle exec bin/fluentd -c example/out_buffered_null.conf
#   (+ --emit-error-log-interval 10)
<source>
  @type dummy
  tag dummy
  rate 500000000
  dummy [
    {"message": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"},
    {"message": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"},
    {"message": "ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"}
  ]
</source>

<match dummy.**>
  @type null
  <buffer>
    flush_interval 60s
    chunk_limit_size 1k
    total_limit_size 4k
  </buffer>
</match>

<label error_log>
  <match **>
    @type stdout
    # <buffer>
    #   flush_interval 1s
    # </buffer>
  </match>
</label>

<match fluent.**>
  @type relabel
  @label error_log
</match>