Before you install data-fabric packages, you must install the package key.
maprgpg.key. For SUSE only, you do not have to install the key because
zypper allows package installation with or without the key.CentOS/RedHat/Oracle Linux
rpm --import https://package.mapr.com/releases/pub/maprgpg.key
Ubuntu
wget -O - https://package.mapr.com/releases/pub/maprgpg.key | sudo apt-key add -