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- 1 ARC 15.03 update 15
- 2 ARGUS 1.7.1
- 3 CREAM 1.16.5
- 4 dCache 3.1.9 & SRM client 3.0.11
- 5 frontier-squid 3.5.24-3.1
- 6 LCGdm-dav 0.18.2
- 7 QCG Broker 4.2.0
ARC 15.03 update 15
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 bugfix release, addressing bugs discovered since release release 15.03u14 The most important fix in this release is the update of Nagios.
NorduGrid ARC 15.03 has received an update to:
- core, clients, CE, Infosys and gridftp - from version 5.3.1 to 5.3.2
- Nagios plugins - from 1.9.0 to 1.9.1
- documents - from 2.0.15 to 2.0.16
Gangliarc and metapackages are unchanged.
Find more details at http://www.nordugrid.org/arc/releases/15.03u15/release_notes_15.03u15.html
Argus is a system meant to render consistent authorization decisions for distributed services (e.g. compute elements, portals). In order to achieve this consistency a number of points must be addressed. First, it must be possible to author and maintain consistent authorization policies. This is handled by the Policy Administration Point (PAP) component in the service. Second, authored policies must be evaluated in a consistent manner, a task performed by the Policy Decision Point (PDP). Finally, the data provided for evaluation against policies must be consistent (in form and definition) and this is done by the Policy Enforcement Point (PEP).
Find more information on the web site.
The CREAM (Computing Resource Execution And Management) Service is a simple, lightweight service that implements all the operations at the Computing Element (CE) level; its well-defined WebService-based interface and its implementation as an extension of the Java-Axis servlet (running inside the Apache Tomcat container) provide interoperability with clients written in any programming language and running on any computer platform.
The CREAM interface is well-defined using the Web Service Description Language (WSDL); anyone can generate his/her CREAM client by simply filling in the stub code generated by WSDL parser (gSOAP for C/C++, Axis for Java, Perl module for perl).
dCache 3.1.9 & SRM client 3.0.11
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.
Detailed release notes on the official product site:
The frontier-squid software package is a patched version of the standard squid http proxy cache software, pre-configured for use by the Frontier distributed database caching system. This installation is recommended for use by Frontier in the LHC CMS & ATLAS projects, and also works well with the CernVM FileSystem. Many people also use it for other applications as well
The project name Lcgdm comes from the first Grid-related projects, and originally meant LHC Computing Grid Data Management. Nowadays the project evolved from its initial roots, and is composed by a set of sub projects facing different aspects of data management for high throughput, widely distributed computing
QCG Broker 4.2.0
Find details on the web sites