Installation Prerequisites

To ensure the performance and robustness of the system, we recommend you to run MDX for Kylin in a single Linux server.

The installation prerequisites of MDX for Kylin are listed below.

• Kylin
• Recommended Hardware Configuration
• Recommended Linux Version
• Required dependencies
• Recommended Database Version
• Recommended MySQL JDBC Version
• Recommended browser and driver version
• Recommended Client Configuration

Kylin

MDX for Kylin requires a Kylin instance or cluster. MDX for Kylin can connect with Kylin 4.0.2 and upon.

If user want to use the MDX for Kylin before Kylin 4.x, please check the reference

Recommended Hardware Configuration

We recommend you to install MDX for Kylin in the following hardware configuration:

• Dual Intel Xeon Processor, 6 core (or 8 core) CPU - 2.3GHz or above
• 32GB ECC DDR3 or above
• At least one 1TB SAS HDD (3.5 inches), 7200RPM, RAID1
• At least two 1GbE Ethernet ports

Recommended Linux Version

We recommend you to install MDX for Kylin in the following Linux operation systems:

• Red Hat Enterprise 7.x
• CentOS 6.4+ / CentOS 7.x
• Suse Linux 11
• Ubuntu 16

Required dependencies

• Java Environment: JDK8 or above

Recommended Database Version

• MySQL 5.7.x

Recommended MySQL JDBC Version

• mysql-connector-java-8.0.16, please download to and if necessary, you can change version in <MDX installation directory>/semantic-mdx/lib/

Recommended browser and driver version

The chart screenshot export feature needs you to install a browser and its compatible driver, the browser should run correctly under the headless mode. We recommend you to use one of the following browsers versions, download its compatible driver and put the driver executable file in your PATH.

• Firefox version 57 or above

  • CentOS 6, CentOS 7: sudo yum install firefox
  • Ubuntu 16: sudo apt install firefox
  • Firefox uses geckodriver, you can download it from GitHub, the version compatibility between geckodriver and Firefox can be found at Mozilla
  • You can try executing firefox --headless to check whether Firefox runs correctly, if you get a dbus connection error, you should start a dbus-daemon first:
    1. CentOS: sudo yum install dbus-x11, Ubuntu: sudo apt install dbus-x11 (install dbus-x11)
    2. sudo dbus-uuidgen --ensure (generate machine-id)
    3. export $(dbus-launch) (run a dbus-daemon and set its environment variables)

• Chrome or Chromium version 67 or above

  • CentOS 6: unsupported
  • CentOS 7: sudo yum install chromium (need epel repository)
  • Ubuntu 16: sudo apt install chromium-browser
  • Chrome/Chromium uses chromedriver, you can download it from Google or Mirror, the version compatibility between chromedriver and Chrome/Chromium can be found at Google

Recommended Client Configuration

• CPU: 2.5 GHz Intel Core i7
• Operating System: macOS / windows 7 / windows 10
• RAM: 8G or above
• Browser version:
  • Chrome 67.0.3396 or above