progress – computing portal and data management in the cluster of suns michał kosiedowski sun hpc...
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PROGRESS – Computing Portal and Data Management in the
Cluster of SUNs
Michał KosiedowskiSun HPC Consortium
Heidelberg 2003
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R & D Center
• PSNC was established in 1993 and is an R&D Center in:– New Generation Networks
• POZMAN and PIONIER networks• 6-NET, SEQUIN, ATRIUM projects
– HPC and Grids• GRIDLAB, CROSSGRID, PROGRESS projects
– Portals and Content Delivery Tools• Polish Educational Portal "Interkl@sa", Multimedia
City Guide, dLibra framework
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Center of Excellence
• PSNC became the Sun CoE in New Generation Networks, Grids and Portals in November 2002
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PROGRESS
• Duration: December 2001 – May 2003 (R&D)• Budget: ~4,0 MEuro• Project Partners
– SUN Microsystems Poland– PSNC IBCh Poznań– Cyfronet AMM, Kraków– Technical University Łódź
• Co-funded by The State Committee for Scientific Research (KBN) and SUN Microsystems Poland
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PROGRESS (2)
• Cluster of 80 processors
• Networked Storage of 1,3 TB
• Software: ORACLE, HPC Cluster Tools, Sun ONE, Sun Grid Engine
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PROGRESS – the talk
• HPC Window – the access environment to grid resources: user interfaces (Computing Portal and Migrating Desktop) + Grid Service Provider
• Data Management System – a distributed system designed for storing scientific data used in experiments performed in the computing cluster (grid)
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HPC Window - motivation
• grid access environments lacked flexibility: one grid -> one portal
• user must have relied on the grid as far as the history is concerned
• user interfaces were not that much functional
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Grid-Portal EnvironmentPORTAL
HPCRESOURCES
GRIDMANAGEMENT
SYSTEM
GRID SERVICEPROVIDER
4-tier new4-tier newgrid-portal environmentgrid-portal environment
PORTAL
HPCRESOURCES
GRIDMANAGEMENT
SYSTEM
3-tier classical3-tier classicalgrid-portal grid-portal
environmentenvironment
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PROGRESS GPE
Co
nte
nt P
rovid
er
We
bse
rvice
Se
ssion
Be
an
En
tity Be
an
s
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PROGRESS HPC Portal
• interaction with users• presentation of data obtain from
services
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Grid Service Provider
• the use of the grid resources more comfortable to the end users
• allows for easy building of numerous portals and other user interfaces; users can switch from one to another and use the same GSP services
• various thematic scientific web portals sharing the same grid resources
• possibility of providing all clients (user interfaces) with computing resources belonging to two or more different grids
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Grid Service Provider (2)
• Necessary services to provide:– job submission service
• managing the creation of user jobs, their submission to the grid and the monitoring of their execution (typically through reverse reporting performed by the Grid Management System about events connected with the execution of jobs)
– application management service• storing information about applications available for
running in the grid• assisting application developers in adding new
applications to the application repository– provider management service
• keeping up-to-date information on the services available within the provider
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GSP: Job submission service
• computing job building, submitting them to the grid for execution and viewing the results
• job description is prepared using the XRSL language and transferred to the grid resource broker for the execution of the job
• grid resource broker reverse reports on grid events connected with the job
• "workflowed" jobs: sequences and parallels
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GSP: Application mgmt. srv.
• application repository management• application descriptor contains a reference to the
application executable: a reference to a file stored in the DMS or a path to a binary on grid computing server filesystems
• also included in the application descriptor: available (required or optional) arguments, required environment variables and required input and output files
• applications in PROGRESS may be unconfigured or configured: one executable -> multiple configured applications
• virtual applications
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GSP: Provider mgmt. service
• enables keeping up-to-date information on services available in the grid service provider
• a service descriptor contains information on the Web Service interface: URL at which the service is available, the service namespace reference (URN) and the service WSDL reference
• services may have multiple instances: informational services
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GSP: Informational services
• examples of instance enabled services
• intended for use by web portals• PROGRESS example: short news
service• other: document directory,
discussion forum (under development)
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GSP: XRSL Language
• Extended Resource Specification Language (XRSL) is an XML based language designed for description of computing jobs
• the XML documents describing grid computing jobs are passed to the grid resource broker, which analyzes them and executes jobs in accordance with requirements included
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Data Mgmt. Syst. - motivation
• data management systems were not oriented towards grid access environment
• data management systems concentrated on distributing data between grid computers
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Data Management SystemINTERNET
DBFile System
Data Broker
Data Storage
Mirror & Proxy
Data Storage Data Storage
MetadataRepository
SRS
UniTree
WS
GASSFTPGrid FTP(...)
Clients
PortalPortal
Grid brokerGrid broker
Migrating desktop
Migrating desktop
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Data Management System (2)
• provides seamless access to data and information for grid computing
• uses metadata for describing stored data
• stores data on various media such as files, tapes and databases
• serves as the source of input data and the destination for the results of computing experiments
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DMS: Data brokerINTERNET
DBFile System
Data Broker
Data Storage
Mirror & Proxy
Data Storage Data Storage
MetadataRepository
SRS
UniTree
WS
GASSFTPGrid FTP(...)
Clients
PortalPortal
Grid brokerGrid broker
Migrating desktop
Migrating desktop
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DMS: Data broker (2)
• serves as an interface (Web Services based) for external clients, such as the HPC Portal and the grid resource broker
• delivers DMS functions for directory, file and metadata management
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DMS: Data broker (3)
• directory mgmt.: add, remove and rename directories, retrieve root and current path, change path, list contents
• file mgmt.: add, remove and rename files, add, remove and retrieve physical location, add and remove archives, add and remove symbolic links
• metadata mgmt.: metadata scheme mgmt., retrieve list of schemes and attributes, assign schemes to files and edit values and attributes, search metadata repository
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DMS: Metadata repositoryINTERNET
DBFile System
Data Broker
Data Storage
Mirror & Proxy
Data Storage Data Storage
MetadataRepository
SRS
UniTree
WS
GASSFTPGrid FTP(...)
Clients
PortalPortal
Grid brokerGrid broker
Migrating desktop
Migrating desktop
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DMS: Metadata repository (2)
• responsible for storing and managing metadata
• format of the metadata scheme associated with a file can be defined by the user or chosen from the predefined formats like the Dublin Core
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DMS: Data storage modules
INTERNET
DBFile System
Data Broker
Data Storage
Mirror & Proxy
Data Storage Data Storage
MetadataRepository
SRS
UniTree
WS
GASSFTPGrid FTP(...)
Clients
PortalPortal
Grid brokerGrid broker
Migrating desktop
Migrating desktop
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DMS: Data storage mod. (2)
• enable access to physical data• data are arranged in data containers
and can be stored on all media types and accessed by a uniform interface
• data can be organized as files on generic filesystems, BLOBs in databases or files on data tapes
• GASS, GridFTP and FTP as the data transport protocols
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DMS: Mirror & proxy module
INTERNET
DBFile System
Data Broker
Data Storage
Mirror & Proxy
Data Storage Data Storage
MetadataRepository
SRS
UniTree
WS
GASSFTPGrid FTP(...)
Clients
PortalPortal
Grid brokerGrid broker
Migrating desktop
Migrating desktop
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DMS: Mirror & proxy mod. (2)
• enables access to external scientific databanks
• mirrors earlier defined sets of data (like the SRS databank in PROGRESS)
• serves as a proxy to internet based data resources (with caching functions)
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Web Services Communication
HPC PortalGrid
Service Provider
DataManagement System
GridResource Broker
saveJob()getApplications()saveTaskOfJob()saveStdOfTask()submitJob()getUserJobs()getJobStatus()
listUserDirectory()addUserFile()
getUserFileLocation()
submitJob() changeJobStatus()
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Authentication & authorization
• utilize the services available within the Sun One Portal Server 6.0 package: authentication techniques, user database, portlet access control, identity server
• design an authorization system for the grid service provider and the data management system: based on the RAD model
• apply a Single Sign-On mechanism
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Authorization scheme
Port
al
GRID SERVICEPROVIDER
Identity serverRAD based
authorizationsystem
Logon
Authentication
Request
Method invocation
Token validation
Resource access
authorization
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Where to go now?
• Project: Research & Development finished; the test and deployment phase now
• We will continue the R&D on the tools, including the grid service provider and the data management system
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Where to go now? (2)
• PROGRESS HPC Portal is a bioinformatic thematic portal: other thematic scientific portals possible to deploy, using the same grid service provider, data management system and grid resources and utilizing the same portal tools
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Where to go now? (3)
• The grid service provider may be equipped with means of communication with multiple grids:– cooperation with GRIDLAB– perhaps some Sun Grid Engine based
grids?
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Where to go now? (4)
• encourage application developers to add their applications to the PROGRESS repository
• encourage visualization module developers to add their software to the PROGRESS repository
• encourage bioinformatic experts to take over as information services editors
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PROGRESS
http://progress.psnc.pl/
http://progress.psnc.pl/portal/