Issue with google-fluentd 1.10.0 on CentOS7

[huypd6946-cowell]

I'm facing issue when use this plugin with google-fluentd 1.10.0 on CentOS7
This plugin work on google-fluentd 1.9.12 but when I upgrade to 1.10.0 it does not work and I don't know why.
Below are plugins I'm using:
gem 'fluentd' version '1.13.3'
gem 'fluent-plugin-ec2-metadata' version '0.1.3'

ruby version: ruby 2.0.0p648 (2015-12-16) [x86_64-linux]