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Data Cataloguing

Data Cataloguing. thoughts, plans, discussions for the Belle Analysis Data Grid Lyle Winton winton@physics.unimelb.edu.au. Catalog. Collection. Sub-collection. File. Location. File. Location. File. Location. Sub-collection. Sub-collection. Collection. Sub-collection.

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Data Cataloguing

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  1. Data Cataloguing thoughts, plans, discussions for the Belle Analysis Data Grid Lyle Winton winton@physics.unimelb.edu.au

  2. Catalog Collection Sub-collection File Location File Location File Location Sub-collection Sub-collection Collection Sub-collection Sub-collection File Location File Location Catalog Collection Replica Catalog • Currently implemented using LDAP, central service • Looks like development is moving away from this!

  3. Catalog Collection Sub-collection File Location Catalog Collection Sub-collection File Location File Location File Location File Location File Location Sub-collection Sub-collection Sub-collection Sub-collection Collection Sub-collection Collection Sub-collection Sub-collection File Location Sub-collection File Location File Location Catalog Collection File Location Catalog Collection Catalog Collection Sub-collection File Location Catalog Collection Sub-collection File Location File Location File Location File Location File Location Sub-collection Sub-collection Sub-collection Sub-collection Collection Sub-collection Collection Sub-collection Sub-collection File Location Sub-collection File Location File Location Catalog Collection File Location Catalog Collection LDAP Advantages - Referrals

  4. Catalog Catalog Collection Collection Sub-collection Sub-collection File File Location Location Catalog Collection Sub-collection File Location Catalog Catalog Collection Collection Sub-collection Sub-collection File File Location Location File File Location Location File Location File File Location Location File File Location Location File Location File File Location Location Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Collection Collection Sub-collection Sub-collection Collection Sub-collection Collection Collection Sub-collection Sub-collection Sub-collection Sub-collection File File Location Location Sub-collection File Location Sub-collection Sub-collection File File Location Location File File Location Location Catalog Catalog Collection Collection File Location File File Location Location Catalog Collection Catalog Catalog Collection Collection Catalog Catalog Collection Collection Sub-collection Sub-collection File File Location Location Catalog Collection Sub-collection File Location File File Location Location File Location File File Location Location File Location Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Sub-collection Collection Collection Sub-collection Sub-collection Collection Sub-collection Sub-collection Sub-collection File File Location Location Sub-collection File Location File File Location Location Catalog Catalog Collection Collection File Location Catalog Collection LDAP Advantages - Master/Slave

  5. Logical File Name Directory Replica Location Service (RLS) File Sub-collection Collection Catalog File GUID File Sub-collection 1 1 Sub-collection Sub-collection Collection File Sub-collection File Physics File Name (PFN) Meta-Data Repository ? ? ? ? An RLS model for data cataloguing

  6. Meta-Data Repository Data, Simulation, Skim, Histogram

  7. Meta-Data Structure High Level Name, Version

  8. Meta-Data Structure • Data oriented queries… • List the files resulting from job X. • Retrieve the list of all simulation data of X type of event. • How can file X be regenerated? (if lost or expired) • Other queries that we can imagine… • What is the status of job X ? • What analyses similar to X have been undertaken? • What tools are being used for X analysis? • Who else is doing analysis X or using tool Y ? • What are the typical parameters used for tool X ?And for analysis Y ? • Search for data skims (filtered sets) that are supersets of my analysis criteria. • Do we have enough information so that future apps & agents could propose data, tools, and parameters given a high level job/analysis description?

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