Release Notes for NorduGrid ARC 6.3.0

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October 16, 2019

We are happy to announce the ARC 6.3.0 release, which includes some bugfixes and smaller enhancements to 6.2.0.

Highlights in this release

As no larger new features are added in this release, the main highlights are the fixing of some annoying bugs:

We would like to mention a highlight from release 6.2.0 which unfortunately missed the highlights at the time: Starting from 6.2 it is possible to measure job resource usage on worker nodes using cgroups. This option provides precise accounting measurements and is enabled automatically when the arc-job-cgroup tool is installed on the worker node (part of the new nordugrid-arc-wn package). Please see the documentation for more details.

Finally looking ahead to 6.4.0: ARC 6.3.0 will be the last release with the current accounting implementation. If you want to know what is awaiting you, please head over to the documentation.

The following Bugzilla tickets have been resolved


The ARC 6 documentation has been rewritten in a modern format and is placed at this location.

Please note that although the most important parts of the ARC 6 documentation are in place, it is still not fully complete. If you have questions, please contact us!

Installing ARC 6

We recommend to install ARC release using the Nordugrid repository.

We provide binary builds for all supported versions of:

In addition we build nightly packages for older platforms.

Future Support of ARC 5-series

Note that now that ARC 6 is released, we will only provide security updates of ARC 5.

In particular:

  1. No new feature development is planned or going on for ARC5 and no bug-fixing development will happen on ARC5 code base in the future except for security issues.
  2. Security fixes for ARC5 will be provided till end of June 2020.
  3. Production Sites already running ARC 5 will be able to get deployment and configuration troubleshooting help via GGUS till end June 2021. This we call "operational site support".
  4. ARC5 is available in EPEL7 and will stay there. EPEL8 will only contain ARC 6.

Getting in Touch

If you need help with the configuration file or have any other questions related to ARC 6, please contact us via

Previous releases

Details of previous releases can be found at the ARC Releases page

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