handling connection error between fluentd #25

I want to use this module within a cron script for my project.
However, I can't find the way handling connection error between my script and fluentd.

As long as I understand, this modules runs as follow way, so cron scripts (not daemon programs) cannot handle the connection problems.

1. when it can't connect to fluentd, data will be stored in a buffer.
2. And it does not return any error, nor call error handler function.

At least, I should know my script have remaining log in the buffer.
Please tell me how to handle connection errors between my script and fluentd.