ARC Clients v.1.0.0

Release Notes

What's new:

• ARC Clients in EMI-1 "Kebnekaise" release is a major step forward with respect to previous releases, as it completes migration to the new code base. With this release the ng* clients are replaced by the arc* clients.
• Introduction of a modular architecture, which comes to its power in the libarcclient and libarcdata2 libraries.
• Compute client comes with plugins providing functionality for job submission, resubmission, and job management against the pre-WS ARC, A-REX, CREAM and any BES-based Execution Service (ES).
• Compute client supports job migration between A-REX instances.
• Compute client supports resource discovery based on EGIIS, ISIS and BDII index services.
• Compute client offers matchmaking and ranking by shortest queue, clock speed, benchmark or data location.
• Compute client offers job description translation between the XRSL, JSDL and JDL languages.
• Modular libarcclient allows easy extension for additional services, ranking algorithms, or job description languages.
• New plugins-based data library, libarcdata2, replaces previous data library.
• Data access is now managed through DMCs, protocol-specific plugins.
• New data clients (arcls, arccp, arcrm, arcsrmping) replace previous data clients (ngls, ngcp, ngrm, ngtransfer, ngstage, ngacl).
• Improved default output for arcls, now closer to UNIX ls. Options are provided to specify non-default output.
• Improved error messages for arcls and arccp, improved calculation of file checksums.
• Fixed a bug where the check for readability (arcls -c) failed incorrectly in some cases.
• Fixed a bug where metadata from gridftp objects were incorrectly reported.
• arcproxy bugfixes: arcproxy - dteam VO error (#2026), arcproxy does not search /etc/vomses recursively (#2118), Segmentation fault with arcproxy with invalid vomses file (#2155)

Deployment notes:

• With this release the new clients (arc*) utilising the strength of libarcclient and libarcdata2 replace the old clients (ng*).The behaviour and interface of the new clients slightly differs from the old ones, so for compatibility reasons the ng* still distributed as part of the compat package.
• The old arclib is now replaced by the new libraries and tagged as obsolete (though still available).
• Previous clients (ng*) are now available from nordugrid-arc-compat package.
• The new clients (arc*) are available from the nordugrid-arc-client package.
• The libracclient and libarcdata2 libraries are available from the nordugrid-arc package.
• The DMCs and different plugins are available from nordugrid-arc-plugins-needed and nordugrid-arc-plugins-globus (the latter requires globus).

Known Issues

• The new arc* commands are not 100% compatible with the old ng* commands. A detailed analysis of the differences are provided as part of client component documentation.
• Recursive copy using ngcp -r deletes existing files (see nordugrid bug #2132). Use caution when using ngcp -r or use arccp -r instead.
• There are additional non-critical smaller issues registered in NorduGrid bugzilla.

Extended Release Notes

• Advanced Resource Connector (ARC)

List of RFCs

• Replace ng* data tools with arc* data tools
• Replace ng* compute tools with arc* compute tools
• arcproxy - dteam VO error
• arcproxy does not search /etc/vomses recursively
• Segmentation fault with arcproxy with invalid vomses file

Documentation

• Functional Description (Section "Functionality Overview")
• User Guide : arc* tools, ng* tools
• Client Installation and Configuration : arc* tools, ng* tools
• Client Configuration Template : Section "ARC Client Configuration" , and section "Configuration"
• User Troubleshooting Guide
• Other Documentation : http://www.nordugrid.org/documents/xrsl.pdf, http://wiki.nordugrid.org/index.php/ARC_Client_Tools_Transition
• Man Pages/Online Help available with binary packages

Artefacts

Binaries
nordugrid-arc-client-1.0.0
nordugrid-arc-compat-1.0.0
nordugrid-arc-compat-debuginfo
Sources
nordugrid-arc-1.0.0-0.b5.src.rpm
nordugrid-arc-compat-1.0.0-0.b4.src.rpm
nordugrid-arc-meta-1.0.0-0.b6.el5.src.rpm
Tarballs
nordugrid-arc-1.0.0.tar.gz nordugrid-arc-compat-1.0.0.tar.gz nordugrid-arc-doc-1.0.0.tar.gz nordugrid-arc-bin.tar.gz nordugrid-arc-compat-bin.tar.gz nordugrid-arc-doc-bin.tar.gz
Metapackages
nordugrid-arc-client-tools