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ARC 15.03 update 14


The Advanced Resource Connector (ARC) middleware is an Open Source software solution to enable distributed computing infrastructures with the emphasis on processing large volumes of data. ARC provides an abstraction layer over computational resources, complete with input and output data movement functionalities. The security model of ARC is identical to that of Grid solutions, relying on delegation of user credentials and the concept of Virtual Organisations. ARC also provides client tools, as well as API in C++, Python and Java.

Release notes

This is a bugfix release, addressing bugs discovered since release release 15.03u13 which suffered from a memory leak causing frequent crashes.

In this release numerous fixes have been implemented in order to make ARC more reliable and stable.

Highlights are:

  • Many memory leaks and memory corruption cases have been eliminated.
  • Effort has been made to improve a long-standing issue where ARC crashed or hung due to Glib process spawning.
  • Likelihood of crashes and hangs due to file handle leaks should be reduced.
  • Finally, the sqlitedelegation store code has been optimized for increased speed.

Note that as of ARC 5.3.0, incorrect treatment of namespace constraints is fixed, resulting in rejection of certificates that do not comply with policies.

NorduGrid ARC 15.03 has received an update to:

  • core, clients, CE, Infosys and gridftp - from version 5.3.0 to 5.3.1
  • Nagios plugins - from 1.8.4 to 1.9.0
  • documents - from 2.0.14 to 2.0.15

Gangliarc and metapackages are unchanged.

See the release notes for details.

davix 0.6.6


davix is a C++ toolkit for advanced I/O on remote resources with HTTP based protocols.

Release notes

DMLite 0.8.6


DMLite is a plugin-based C++ framework that gives functionality for namespace management, pool management and i/o access. More information on the website.

Release notes

dpm-dsi 1.9.13

More details at

FTS 3.6.8


FTS3 is the service responsible for globally distributing the majority of the LHC data across the WLCG infrastructure. Is a low level data movement service, responsible for reliable bulk transfer of files from one site to another while allowing participating sites to control the network resource usage

Release notes

Detailed release notes at this page.

XRootD 4.6.1


XRootD software framework is a fully generic suite for fast, low latency and scalable data access, which can serve natively any kind of data, organized as a hierarchical filesystem-like namespace, based on the concept of directory. As a general rule, particular emphasis has been put in the quality of the core software parts.

release notes

Detailled release notes at