https://github.com/alibaba/canal/wiki/QuickStart
https://github.com/alibaba/canal/releases/download/canal-1.1.4/canal.deployer-1.1.4.tar.gz
wget https://github.com/alibaba/canal/releases/download/canal-1.1.4/canal.deployer-1.1.4.tar.gz
mkdir /tmp/canal
tar zxvf canal.deployer-1.1.4.tar.gz -C /tmp/canal
vi conf/example/instance.properties
