1 / 20

IPv6 and Grid Middleware: the EUChinaGRID experience

IPv6 and Grid Middleware: the EUChinaGRID experience. Gabriella Paolini – GARR Valentino Carcione – GARR Mario Reale – GARR Taipei, 28/03/2007 ISGC 2007. Summary. EUChinaGRID project IPv6 activity in EUChinaGRID gLite IPv6 Compliance Code-checker Guideline for developers Test-bed

olive
Download Presentation

IPv6 and Grid Middleware: the EUChinaGRID experience

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. IPv6 and Grid Middleware:the EUChinaGRID experience Gabriella Paolini – GARR Valentino Carcione – GARR Mario Reale – GARR Taipei, 28/03/2007 ISGC 2007 http://www.euchinagrid.eu

  2. Summary • EUChinaGRID project • IPv6 activity in EUChinaGRID • gLite IPv6 Compliance • Code-checker • Guideline for developers • Test-bed • External components and IPv6 • GOS and DAS • Next steps

  3. Project Information • EUChinaGRID is a Specific Support Action (SSA) funded under the EU VI Framework Program. • The project started on the 1 January 2006. • 24 months duration. • 10 partners (6 from Europe and 4 from China). • A total of 495 person months (325 funded). • More information is available on the project web site: www.euchinagrid.eu.

  4. IPv6: A specific activity in EUChinaGRID IPv6 compliance of the middleware on operational networks in China (CNGrid GOS) and in Europe (EGEE gLite) • address possible issues; • provide feedback to MW developers.

  5. gLite IPv6 compliance performed tasks • gLite code survey performed by GARR and INFN with an ad-hoc developed tool: the IPv6code checker • Specific tests on an IPv6 test-bed highlighted a number of IP version dependencies in the gLite code gLite is not yet IPv6-ready • A migration guideline document delivered to the EGEE middleware developers. • On going fruitful collaboration with EGEE and ETICS

  6. IPv6 code checker • It is a simple bash script • It looks for: • non RFC-3493 compliant calls in specific patterns • suspicious IPv4 code patterns and function calls inside the source code (C/C++, Java, Python, Perl). • Available for downloading: http://www.euchinagrid.org/IPv6/cod_checker.html • It has been run on 52 gLite WMS CVS modules : 16 failed

  7. Example of IPv6 code checker output org.glite.security.voms INADDR_ [FAILED] addr_in [FAILED] F_INET$ [PASSED] gethostbyname [FAILED] inet_addr [PASSED] inet_ntoa [PASSED] Inet4Address [PASSED] inet_aton [PASSED] gethostbyname_ex [PASSED] INADDR_BROADCAST [PASSED] 0.0.0.0 [FAILED] 127.0.0.1 [PASSED] 255.255.255.255 [PASSED]

  8. IPv6 guidelines for GRID developers The document consists of two parts. • the IPv6 Programming guide • It describes basics of IPv6 programming and explains how to port IPv4 applications on IPV6. • It focuses on the most used programming languages: C/C++, Perl, Python, Java • the gLite code survey • It reports results of the code survey on the middleware source code and draws up the list of the incompatible modules. • Included in EUChinaGrid deliverable D2.2 • http://www.euchinagrid.org/docs/EUChinaGRID-Del2.2v3-1.pdf

  9. Protocol-agnostic programming

  10. IPv6 testbed @GARR • Hardware: • VMWARE ESX server based virtual nodes • Software: • Operating System: Scientific Linux CERN 3.0.8 • gLite middleware : gLite 3.0.6 + recommended patches

  11. voms.dir.garr.it 193.206.159.211 2001:760::159:211/64 ui2.dir.garr.it ce.dir.garr.it wms.dir.garr.it 193.206.159.217 193.206.159.213 193.206.159.214 2001:760::159:217/64 2001:760::159:213/64 2001:760::159:214/64 rgma-bdii.dir.garr.it 193.206.159.215 2001:760::159:215/64 wn1.dir.garr.it wn2.dir.garr.it se.dir.garr.it 193.206.159.216 193.206.159.218 193.206.159.221 2001:760::159:216/64 2001:760::159:218/64 2001:760::159:221/64 IPv6 test-bed@ GARR VOMS UI2 WMS-LB CE WN2 RGMA-BDII WN1 SE

  12. Test operational procedure • Install and configure gLite • Start up all services • Let the system work on dual stack • Register nodes with double hostnames on a dual stack DNS server (verify DNS resolving) • Switch off IPv4 and restart with IPv6 only • Re-configure and restart services when required (and possible!) • Perform basic functional tests from the UI node

  13. Testbed set up and results • The following gLite services have been installed and configured: • UI User Interface • WMS Workload Management System • LB Logging and Bookkeeping server • CE Computing Element (Torque) • WNs Worker Nodes • VOMS server (mysql) VO Management System server • RGMA Information System • BD-II Information System • SE (classic) (gridFTP , local disk fs based) • Functionalities immediately failing: • voms-proxy-init failing [VOMS] • glite-job-submit failing [WMS NS] • …

  14. Ipv6 compatibility of GRID middleware • A specific task was started in order to investigate if libraries, software and other third-party elements used in gLite and GOS are IPv6 compliant. • Results reported in a list of modules and third-party components. http://www.euchinagrid.org/IPv6/ipv_grid_middle.html

  15. GOS IPv6 migration • CNGrid GOS (Grid Operating System) middleware is written in Java, which natively supports IPv6. • A full dual-stack version of GOS has been deployed by Beihang University (BUAA). • The new release of GOS was thoroughly tested on a test-bed set up on servers at BUAA, Tsinghua University and Institute of Computing Technology (ICT) in Chinese Academy of Sciences (CAS). • GOS was deployed on 11 main nodes of CNGrid.

  16. GOS on IPv6

  17. DAS IPv6 version • DAS (Data Access Service) is a middleware used in Scientific Data Grid (a sub-project of CNGrid) aiming at uniform data access service on heterogeneous relational databases covering many disciplines. • It’s IPv6 compliant. • Fully tested in an IPv6 environment. • DASv6: http://das.sdg.ac.cn:8080/dataview

  18. DASv6

  19. Next Steps • Continue the collaboration with EGEE and ETICS on gLite and IPv6 compliance • Put IPv6 code-checker as a plug-in in the ETICS building-system • Continue with IPv6 compatibility in Grid middleware studies • following ETICS list of all the external dependencies (~ 80) • A large scale IPv6 test-bed • Across different countries (Italy, France, Greece and China) • Across different projects (EUChinaGRID::WP2, EGEE::SA2, ETICS) • Using IPv4-IPv6 transition mechanisms (NAT-PT)

  20. http://www.euchinagrid.eu/IPv6/

More Related