I released Fluentd v0.10.29. This release improves out_exec_filter.
* out_exec_filter supports out_format option.
You can use JSON ('json') and MessagePack ('msgpack') formats for the output format of a command.
Thus you don't have to set out_keys option in the configuration file.
* out_exec_filter supports in_format option.
You can use JSON ('json') and MessagePack ('msgpack') formats for the input format of a command.
Thus you don't have to set in_keys option in the configuration file.
Thanks,
Sadayuki Furuhashi