Installing KNIME Analytics Platform
|For step-by-step videos on how to install KNIME Analytics Platform, please take a look at our KNIMETV YouTube channel.|
Go to the download page on the KNIME.com website to start installing KNIME Analytics Platform.
The download page shows three tabs which can be opened individually:
Register for Help and Updates: here you can optionally provide some personal information and sign up to our mailing list to receive the latest KNIME news
Download KNIME: this is where you can download the software
Getting Started: this tab gives you information and links about what you can do after you have installed KNIME Analytics Platform
Now open the Download KNIME tab and click the installation option that fits your operating system.
Notes on the different options for Windows:
The Windows installer extracts the compressed installation folder, adds an icon to your desktop, and suggests suitable memory settings.
The self-extracting archive simply creates a folder containing the KNIME installation files. You don’t need any software to manage archiving.
The zip archive can be downloaded, saved, and extracted in your preferred location on a system to which you have full access rights.Figure 1. KNIME Analytics Platform versions
Once downloaded, proceed with installing KNIME Analytics Platform:
Windows: Run the downloaded installer or self-extracting archive. If you have chosen to download the zip archive instead, unpack it to a location of your choice. Run
knime.exeto start KNIME Analytics Platform.
Linux: Extract the downloaded tarball to a location of your choice. Run the
knimeexecutable to start KNIME Analytics Platform.
Mac: Double click the downloaded dmg file and wait for the verification to finish. Then move the KNIME icon to Applications. Double click the KNIME icon in the list of applications to launch KNIME Analytics Platform.
Configuration settings and knime.ini file
When installing KNIME Analytics Platform, configuration settings are set to their defaults, and they can later be changed in the knime.ini file. The configuration settings, i.e. options used by the Java Virtual Machine when KNIME Analytics Platform is launched, range from memory settings to system properties required by some extensions.
You can find
knime.ini in the installation folder of KNIME Analytics Platform.
On MacOS: To locate
knime.ini file can be edited with any plaintext editor, such as Notepad (Windows), TextEdit (MacOS) or gedit (Linux).
Allocating memory in knime.ini file
-Xmx1024m in the
knime.ini file specifies how much memory KNIME Analytics Platform is allowed to use.
The setting for this value will depend on how much memory is available in your machine.
KNIME recommends setting it to approximately one half of your available memory, but you can modify the value based on your needs.
For example, if your computer has 16 GB of memory, you might set the entry to
Installing Extensions and Integrations
Extensions and integrations provide additional functionality for KNIME Analytics Platform. They can be installed as follows.
Click File → Install KNIME Extensions…. A dialog opens and compiles a grouped list of extensions to choose from.
The Install KNIME Extensions menu provides the extensions that are available via the update sites you have enabled.
After selecting the extensions you want to install, click Next and follow the instructions; KNIME Analytics Platform has to be restarted to apply the new extensions.
|For more information, take a look at our video on How to Install Extensions in KNIME Analytics Platform. Also see the Extensions and Integrations Guide.|
Updating KNIME Analytics Platform and Extensions
It is good to make sure that you always use the latest version of KNIME Analytics Platform and its extensions.
Do this by:
Clicking File → Update KNIME…. In the dialog that opens, select the available updates you want to install and then click Next.
Proceed by following the instructions. KNIME Analytics Platform has to be restarted in order to apply the updates.
The Update Sites are where KNIME retrieves additional software in the form of extensions as well as updates. To see or edit the available update sites, select File → Preferences → Install/Update → Available Software Sites.
Default Update Sites
These four updates sites are provided by KNIME and are always available:
Figure 2. Available Update Sites
KNIME Analytics Platform 3.6 Update Site and KNIME Community Contributions are enabled by default.
Adding External Update Sites
To install extensions that are not part of the above update sites, click Add (shown in Figure Add Update Sites) to manually add the relevant update site, inserting the Name and Location as shown below.
After adding a new update site you will see it listed in the Available Software Sites. You must now enable it by selecting it from the list.
Adding Local Update Sites
If you receive an error message “Proxy Authentication Required” when connecting to a remote update site (provided by a URL), or you do not have internet connection, you can install extensions from a zip file. You can download KNIME update sites as zip files here.
Save the zip file containing the extensions to your local system
Open the Available Software Sites dialog and enter the path to the zip file by clicking Add → Archive….
|If the same extensions are provided by a URL, you will first have to disable the update site by disabling it in the list.|
Now click Apply and Close
Working with the Nightly Builds
Once a night, a new version of KNIME Analytics Platform is created directly from our development branch. The Nightly Build versions available here provide insight into what’s coming up in the next regular release. However, for real work, always use a version of a standard KNIME release. Also read the following disclaimer before proceeding:
Really, really, really important disclaimer
This is most definitely not production quality code. These nightly builds are what we use internally to validate and test recent developments, so they are not tested as thoroughly as standard KNIME releases. Furthermore new nodes or functionality may change substantially (or disappear entirely) from one build to the next. It’s even possible that workflows you edit or create with nightly builds stop being readable by future (or past) versions…
These nightlies are a great way to get a sneak peek at what may be coming in the next version of KNIME and provide feedback and suggestions. They are not a particularly safe way to do real work.