Created by: dzhwinter

We should add a system clock package to our paddle-dev image. After I re-run the cmake script in docker dev-image, it always shows me this warning. which means paddle-dev image system clock ahead my local system clock.

make[2]: warning:  Clock skew detected.  Your build may be incomplete.
[ 88%] Built target paddle_trainer_lib
make[2]: Warning: File 'paddle/pserver/CMakeFiles/paddle_pserver_main.dir/progress.make' has modification time 2461 s in the future
Scanning dependencies of target paddle_pserver_main                                                                                                           make[2]: warning:  Clock skew detected.  Your build may be incomplete.

it can be fixed with

sudo apt-get install ntp
sudo ntpdate pool.ntp.org

If the docker image related issue should not be here, please let me know. Thanks.