Preview 1.16.0

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APEL-SSM 2.2.0

Secure Stomp Messenger (SSM) is the messaging system used by APEL to transmit messages. It is written in Python and uses the STOMP protocol.

We would be happy to hear any comments you have about SSM - design, packaging, documentation or anything else - email apel-admins@stfc.ac.uk.

More information on the APEL/SSM page.

Release notes:

ARC 15.03 update 18

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 15.03u17.

There are 3 fixed bugs in this version of ARC. These involve the infoprovider, EMI-ES submission interface, and multicore jobs use of scratchdir. See more details below.

In addition memory leaks have been found and fixed, in Globus code and elsewhere in A-Rex.

NorduGrid ARC 15.03 has received an update to:

Gangliarc, Nagios plugins and metapackages are unchanged.

Find more details at http://www.nordugrid.org/arc/releases/15.03u18/release_notes_15.03u18.html

CVMFS 2.4.4

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.

Release notes

CernVM-FS 2.4 is a feature release that comes with performance improvements, new functionality, and bugfixes. Please find detailed release notes in the technical documentation.

davix 0.6.7

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

Release notes:

dCache 2.16.58 and dcap 2.47.12

dCache provides a system for storing and retrieving huge amounts of data, distributed among a large number of heterogeneous server nodes, under a single virtual filesystem tree with a variety of standard access methods.

dcap is a client software for interacting with dCache using the dcap protocol. This Includes POSIX-like core library and support for Kerberos and X.509-based secure communication: https://www.dcache.org/manuals/libdcap.shtml

Detailed release notes on the official product site: https://www.dcache.org/downloads/1.9/release-notes-2.16.shtml

DPM 1.9.2

The Disk Pool Manager (DPM) is a lightweight storage solution for grid sites. It offers a simple way to create a disk-based grid storage element and supports relevant protocols (SRM, gridFTP, RFIO) for file management and access. It focus on manageability (ease of installation, configuration, low effort of maintenance), while providing all required functionality for a grid storage solution (support for multiple disk server nodes, different space types, multiple file replicas in disk pools)

Release notes on the official website. Link to the upgrade guide: https://twiki.cern.ch/twiki/bin/view/DPM/DpmSetup190

XRootD 4.8.0

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/2017/12/14/announcement_4_8_0.html

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