Release Notes for NorduGrid ARC 6.6

April 27, 2020

We are happy to announce the release of ARC 6.6.0 which comes with a new features and a handful of bug fixes.

Highlights in this release

In this release we offer the very first technology preview of the handling of OIDC tokens in ARC. With it comes a new configuration option enabling the feature. Please see the documentation for how to use tokens with ARC.

A few bugs were also fixed, see the list of tickets.

The following Bugzilla tickets have been adressed or solved

• 3916 Support for OIDC tokens in ARC
• 3913 python3 packages for ubuntu (solved)
• 3911 Issue with arcctl deploy voms-lsc from EGI database (solved)
• 3910 Wrong type for RR type in archery-manage raw data check (solved)
• 3909 Multiple crashes from DataStagingDevliery by DataPointHTTP.cpp (solved)
• 3856 ExecutionEnvironment for a specific queue/partition is not calculated properly according to queue config in SLURM (solved)

Documentation

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

If you miss something or have questions, please contact us!

Installing ARC 6

We recommend to install ARC release using the Nordugrid repository.

• Start with the basics
• Get production ready

Note that if you instead install from EPEL for RHEL7 compatible systems, the ARC 6 packages can be found as nordugrid-arc6-* and not nordugrid-arc-*. This was needed in order to supply both ARC 5 already available for RHEL7 and the new ARC 6.

We provide binary builds for all supported versions of:

• Debian (i386 and amd64)
• Fedora (i386 and x86_64)
• CentOS EL6 (i386 and x86_64) and EL7/EL8 (x86_64)
• Ubuntu: (i386 and amd64, both LTS and interim releases)

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

• Email: (Subscribe)
• Skype channel dedicated to ARC 6 support

Previous releases

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