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ARC 15.03 update 12
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.
This is a minor release, introducing new features and addressing bugs discovered since 15.03u12.
As of Fedora 26 and Debian 9 and their migration to OpenSSL 1.1, ARC has undergone a lot of work in order to implement support for the new OpenSSL versions. The consequence is that:
- support of OpenSSL versions lower than 1.0.0 is dropped.
- support for EL5 and Ubuntu 10.04 LTS and below is dropped.
- old GSI proxies are no longer supported. This should not cause complications as both WLCG and EGI have confirmed that they do not use non-RFC proxies. ARC uses RFC proxies by default.
- Canl C++ is no longer supported as it is retired from Fedora and Debian.
NorduGrid ARC 15.03 has received an update to:
- core, clients, CE, Infosys and gridftp - from version 5.2.2 to 5.3.0
- gangliarc - from 1.0.1 to 1.0.2
- documents - from 2.0.13 to 2.0.14
Nagios plugins and metapackages are unchanged. CAnL C++ is removed
A new standalone tool, jura_to_es has been developed. This allows sending of Jura accounting logs to Elasticsearch for analysis.
See the release notes for details.
The CernVM File System provides a scalable, reliable and low-maintenance software distribution service. It was developed to assist High Energy Physics (HEP) collaborations to deploy software on the worldwide-distributed computing infrastructure used to run data processing applications. CernVM-FS is implemented as a POSIX read-only file system in user space (a FUSE module). Files and directories are hosted on standard web servers and mounted in the universal namespace /cvmfs. More info here.
CernVMV-FS 2.3.5 is a patch release containing bugfixes and adjustments necessary for smooth operation. Please find detailed release notes in the technical documentation.
Detailed release notes on the official product site.
GFAL (Grid File Access Library ) is a C library providing an abstraction layer of the grid storage system complexity. The version 2 of GFAL tries to simplify at the maximum the file operations in a distributed environment. The complexity of the grid is hidden from the client side behind a simple common POSIX API.
Detailed release notes at http://dmc.web.cern.ch/release/gfal2-2.13.3
GFAL 2 utils are a group of command line tools for file manipulations with any protocol managed by gfal 2.0
Detailed release notes at http://dmc.web.cern.ch/release/gfal2-util-1.5.0
Detailed relese notes at http://dmc.web.cern.ch/release/srm-ifce-1.24.2
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.
Detailled release notes at http://xrootd.org/2017/02/07/announcement_4_6_0.html