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© 2006 Open Grid Forum Discussion of File Catalog Standardization GFS-WG, OGF24 Singapore Osamu Tatebe, co-chair of GFS-WG Univ. of Tsukuba Sep 16, 2008
© 2006 Open Grid Forum 2 OGF IPR Policies Apply I acknowledge that participation in this meeting is subject to the OGF Intellectual Property Policy. Intellectual Property Notices Note Well: All statements related to the activities of the OGF and addressed to the OGF are subject to all provisions of Appendix B of GFD-C.1, which grants to the OGF and its participants certain licenses and rights in such statements. Such statements include verbal statements in OGF meetings, as well as written and electronic communications made at any time or place, which are addressed to: the OGF plenary session, any OGF working group or portion thereof, the OGF Board of Directors, the GFSG, or any member thereof on behalf of the OGF, the ADCOM, or any member thereof on behalf of the ADCOM, any OGF mailing list, including any group list, or any other list functioning under OGF auspices, the OGF Editor or the document authoring and review process Statements made outside of a OGF meeting, mailing list or other function, that are clearly not intended to be input to an OGF activity, group or function, are not subject to these provisions. Excerpt from Appendix B of GFD-C.1: Where the OGF knows of rights, or claimed rights, the OGF secretariat shall attempt to obtain from the claimant of such rights, a written assurance that upon approval by the GFSG of the relevant OGF document(s), any party will be able to obtain the right to implement, use and distribute the technology or works when implementing, using or distributing technology based upon the specific specification(s) under openly specified, reasonable, non- discriminatory terms. The working group or research group proposing the use of the technology with respect to which the proprietary rights are claimed may assist the OGF secretariat in this effort. The results of this procedure shall not affect advancement of document, except that the GFSG may defer approval where a delay may facilitate the obtaining of such assurances. The results will, however, be recorded by the OGF Secretariat, and made available. The GFSG may also direct that a summary of the results be included in any GFD published containing the specification. OGF Intellectual Property Policies are adapted from the IETF Intellectual Property Policies that support the Internet Standards Process.
© 2006 Open Grid Forum 3 Agenda Introduction: RNS and File Catalog Profile File Catalog Development in Japan e-Science Project Hideo Matsuda (Osaka Univ) RNS Requirements by KEK Go Iwai (KEK) Study of Load Balancing of Resource Namespace Service Masahiro Nakamura (Univ Tsukuba) Discussion
© 2006 Open Grid Forum 4 Resource Namespace Service (GFD-P-R.101) Hierarchical namespace management that provides name-to-resource mapping Basic Namespace Component Virtual Directory Non-leaf node in hierarchical namespace tree Junction Name-to-resource mapping that interconnects a reference to any existing resource into hierarchical namespace /grid ogfjp datagfs file1 file3 file2 file4 file1file2 EPR1 EPR2 http://www.ogf.org/documents/GFD.101.pdf
© 2006 Open Grid Forum 5 RNS Operations add ( string: name, EPR: reference,... ) list ( [ string: regexp ] ) update ( [ EPR: parent, string: name, EPR: reference,... ] ) query () remove ( [ string: name | string: regexp ] )
© 2006 Open Grid Forum 6 File Catalog Profile Resource Namespace Service (RNS) File Catalog ProfileOther Naming Profile Define necessary feature for File Catalog on top of RNS Entry property for File Catalog Iterator – WS-Enumeration / WS-Iterator Resolver – WS-Naming
© 2006 Open Grid Forum 7 File Catalog Entry Property (1) Checksum String representation of the actual checksum corresponding to the physical file or fileset symbolized by this data resource junction. ChecksumType String representation of the checksum type or algorithm used to produce the checksum. ChildCount* Number of subentries corresponding to this VFDS entry, if and only if the entry is a virtual directory; zero or NULL otherwise. Description* Description of entry. Complete Identifies whether or not the file or filesystem source targeted by this VFDS entry is complete. In the case of files, a value of true connotes all of the file content is embodied in the file; for filesets (filesystem subtrees) this identifies whether or not the fileset is complete in terms of number of files participating and the coherency of these files.
© 2006 Open Grid Forum 8 File Catalog Entry Property (2) MutableSource Identifies whether or not the file or filesystem source targeted by this VFDS entry can change. ReadOnly Identifies whether or not a local copy of the data should be locally read-only. ReplicaCopy Identifies whether or not the file or filesystem source targeted by this VFDS entry is a replica copy. Size The physical size of the targeted data source. If the target data is in the form of a file (implying a Physical File Name) then this value discloses the size of the file in bytes. If the target data is in the form of a fileset (implying a Physical File System Name) then this value discloses the summation size of all the contained files. ModificationTime* The replica or filesets point-in-time timestamp corresponding to the time at which the source snapshot was made. Version The version number of the targeted data if available.
© 2006 Open Grid Forum 9 Further Consideration Performance Bulk operation NFSv4-like COMPOUND procedure, which is used to combine one or more operations into a single RPC request Security Access control list To namespace information To the target resource that the namespace refers to
© 2006 Open Grid Forum 10 Full Copyright Notice Copyright (C) Open Grid Forum (2008). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. The limited permissions granted above are perpetual and will not be revoked by the OGF or its successors or assignees.
© 2006 Open Grid Forum Global resource naming for data grid federation GFS-WG, OGF22 Cambridge Osamu Tatebe, co-chair of GFS-WG Univ. of Tsukuba Feb 27,
© 2008 Open Grid Forum Resource Selection Services OGF22 – Boston, Feb
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© 2006 Open Grid Forum Network Services Interface 2015 Global LambdaGrid Workshop Prague Guy Roberts, Chin Guok, Tomohiro Kudoh 28 Sept to 1 Oct 2015.
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