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KEO Help

This FAQ groups common questions that KEO users may have regarding the usage of KEO/KAOS interface, providing answers for them.

Questions

Answers

Question: Where can I find the KAOS documentation?
Answer 

Since the version 1.1.6 of KAOS, PDF documentation is no more included into the software package to reduce the download size and increase its speed.

Up-to-date PDF documentation can be viewed or download from the KAOS web page.

Question: How can I use environment variable in a script? I have them set on my node but when I run my script as FEP the variables are empty.
Answer 

In order to define environment variables for your CLI modules KAOS provides you have to configure them in the CLI definition interface.
This will allow you to run your CLI with the configuration needed.

Question: How will my account privileges be configured after registering on KAOS?
Answer 

The kaos.user role (see KAOS documentation) will be provided to all the users.
In order to receive additional permission like:

  1. kaos.service.publisher
  2. kaos.application.user

the user has to provide additional information (about company and project) to the KEO Operation Team. ESA will evaluate the request at the light of these additional information.

Question: On which platform can KAOS be executed?
Answer  KAOS can be executed on Microsoft Windows, Apple MacOS X, Linux and any other platform for which Java 5 or later is available.
Question: Which JAVA version is required to run KAOS?
Answer  KAOS is certified to run with Java 5 (JRE 1.5.x). Java 6 (JRE 1.6.0_04 or later) can be used, but not all parts of the program are fully tested.
Question: Which Java extension must be installed?
Answer 

Java Advanced Imaging (JAI 1.1.3 or later).

Java Advanced Imaging Image I/O Tools (JAI Image I/O Tools 1.1) or later.

Note for MacOS X users: JAI and JAI Image I/O Tools extensions are not yet available for mac. However, you can use the jars from the Linux download to get pure java (limited) functionality. Copy them to /System/Library/Frameworks/JavaVM.framework/Home/lib/ext/.

Question: Which restrictions exist in the files than can be uploaded to KEO when executing a FEP module?
Answer  Currently the only restriction in on the file name: it cannot contain white spaces.
Question: Which restrictions exist in the files than can be uploaded to KEO when ingesting new data into a collection?
Answer  Currently the only restriction in on the file name: it cannot contain white spaces.
Question: What should I do when, launching KAOS, a dialog appears telling a server cannot be contacted?
Answer 

The dialog will be displayed when:

  • a network problem exists impeding the connection with the server machine;
  • a wrong server address is specified for the unreachable server.


The first case requires the network connection (cables, routers, switchers, …) be checked. The second one requires the correct address to be specified in the KAOS’s preferences dialog.

Question: What I must do when, launching kaos, a dialog appears telling a server has a different version than expected?
Answer  The dialog will be displayed the KAOS application is outdated. Just upgrading it to the last version will solve the problem.