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5. RapidMiner Server home directory

RapidMiner Server home directory

The RapidMiner Server home directory is created automatically by the RapidMiner Server installer – see theinstallation guideto install and start using RapidMiner Server.

This document outlines the purpose of the various files and subdirectories within the RapidMiner Server home directory.

What is the RapidMiner Server home directory?

The RapidMiner Server home directory is where your RapidMiner Server configuration and data is stored. In particular it stores the contents of the RapidMiner Server repository, including all user data that was uploaded from RapidMiner Studio and generated via RapidMiner processes.

What does the RapidMiner Server home directory contain?

Your RapidMiner Server home directory contains the following directories and files:

Path	Description
.RapidMiner /	Execution context directory used by RapidMiner Core.
data/	Data directory which contains persistent data like the repository content and caches.
data/repository/	Contains the repository content.
configuration/	Contains application configuration.
configuration/standalone.xml	Allows configuring various aspects of how RapidMiner Server behaves, such as its database connection, exposed ports, etc.
job-agent-home/	Home folder of the bundledJob Agent.
resources/jdbc/	Contains externally installed JDBC drivers.
resources/extensions/	Contains extensions used by RapidMiner Server. Seehow to install extensionsfor more information.
resources/licenses/	Contains the RapidMiner Server license(s).
resources/libs/	Contains custom Java libraries which are used in a RapidMiner process.
resources/modules/	Containsexternal JBoss modules, by default RapidMiner Server's JDBC driver is placed within this directory.
log/	Contains log files for RapidMiner Server.

Handling disk space

默认情况下,所有用户生成的内容,如过程sses, models or data sets will be put inside the RapidMiner AI Hub home directory. As those contents can grow in size depending on your users' use ofProjectsand theRemote Repository, we advise to always have enough space left on the disk which is hosting the RapidMiner AI Hub home directory.

In addition to regularly checking disk space availability as admin, AI Hub provides two safety mechanisms to reject uploading any items which would exceed available disk space when usingProjects. By default, at least five gigabytes are required to be available for the underlying Git and LFS storage. Although the default values should provide an adequate safety, checks can be disabled or configured further inside theexecution.propertiesfile. Adjust to your liking if needed.

repositories.gitEnableDiskspaceCheckHook = true repositories.gitDiskspaceCheckThreshold = 5120M repositories.lfsEnableDiskspaceCheck = true repositories.minLfsDiskspaceCheckThreshold = 5120M

Setting the RapidMiner Server home directory

Note that the RapidMiner Server home directory is created automatically by the RapidMiner Server installer.

The home directory location is defined by theRAPIDMINER_SERVER_HOMEenvironment variable.

Securing the RapidMiner Server home directory

The repository data, thestandalone.xml, and other configuration files all contain information that may be considered secret (server settings, repository content, database passwords, etc).

For production use, we strongly recommend that you secure this directory against unauthorized access.

We recommend the following precautions:

• Assign a separate restricted user account on the machine for running RapidMiner Server (not a root/administrator user)

  If you wish to run RapidMiner Server on port 80, use a reverse proxy server likeApache HTTP Serverornginx(do not run as root/Administrator if security of the home directory is important to you)

• Ensure that only the user running RapidMiner Server can access the RapidMiner Server home directory, and that this user has read, write and execute permissions, by setting file system permissions appropriately for your operating system.

• Do not use the embedded Job Agent. Insteadconfigure external Job Agentsand use a different user account that is not allowed to access the RapidMiner Server home directory.
• Ensure that your file system is encrypted (e.g. via eCryptfs, dm-crypt, EFS or FileVault)

Technical notes

• One RapidMiner Server home directory per RapidMiner Server instance!

  You can only have one RapidMiner Server home directory per RapidMiner Server installation. If you have multiple RapidMiner Server installations, you will need to set up a RapidMiner Server home directory for each installation.

• Where possible, you should choose a location for your RapidMiner Server home directory that willneverneed to be moved. Some home contents are location-sensitive, so moving the home directory may corrupt them.

• The RapidMiner Server home directory contains the RapidMiner Server repository content. As this content can be uploaded by the user the file system needs to support the UTF-8 charset encoding. Example configuration for Linux via/etc/environment:

  export LANG=en_US.UTF-8 export LANGUAGE=en_US:en export LC_ALL=en_US.UTF-8

• As noted above,data/repository/contains the repository content being managed by RapidMiner Server. We strongly recommend that customers never modify it, nor interact with it directly.