td-agent use with fluent-plugin-docker_metadata_filter out_mongo not work

[udomsak]

I use td-agent version 0.12.12 and use plugin "fluent-plugin-docker_metadata_filter" and set output to mongodb.

output - file no problem.
output - console - no problem.

but for mongo output not work and not show any error. not sure what happen

Also td-agent and plugin work that i no idea why that. Please investigate too. :)

This my configuration file

<source>
  type tail
  path /var/lib/docker/containers/*/*-json.log
  pos_file fluentd-docker.pos
  time_format %Y-%m-%dT%H:%M:%S
  tag docker.*
  format json
  read_from_head true
</source>

<filter docker.var.lib.docker.containers.*.*.log>
  type docker_metadata
</filter>

<match **>
  type stdout
</match>

<match **>
  type file
  path /var/log/docker/*.log
  format json
</match>


<match **>
  type mongo
  host 127.0.0.1
  port 27017
  database docker
  collection logs

  # for capped collection
  capped
  capped_size 1024m

  remove_tag_prefix docker.var.lib.docker.containers.*.*.log

  # authentication
  #user michael
  #password jordan

  # key name of timestamp
  time_key time

  log_level trace
  ignore_invalid_record true
  disable_collection_check true

  # flush
  flush_interval 10s
</match>