April 2006 - saga-rg - lists.ogf.org

ISSUE 132
by Andre Merzky 22 Jun '06

22 Jun '06

132) when do we refer to target host name, and when to resource manager contact, on job submit/description? Se mail thread with Graeme/Chris "JobService.submitJob() query" - OPEN, URGENT See also the comment from Graeme to the list today below: > Andre, > > The client must be able to specify the resource manager to which jobs > are submitted, as a service URL or machine name. This should be a > argument for either the JobService constructor, or the > JobService.createJob() & JobService.runJob() methods. > > I guess that conceptually I prefer specifying the resource manager > during the construction of the JobService object. However in an earlier > mail Chris Smith indicated that the 'host' argument of the runJob() > method was originally intended to indicate the machine upon which the > job should be run (mapping to an element of the SAGA_HostList > attribute). This is confusing and the 'host' argument should be removed, > or redefined to indicate the resource manager. > > Graeme I propose to go with Grames proposal unless there are opinions to do differently. I like the version to redefine the host arg better than to remove it altogether. Other opinions? Thanks, Andre. -- "So much time, so little to do..." -- Garfield

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Re: [saga-rg] ISSUE 90
by G.E.POUND＠soton.ac.uk 22 Jun '06

22 Jun '06

Andre, Please find attached comments on the Exceptions thrown by the methods of JobService and Job in the Java bindings (including changes that I must implement). Most are quite straight-forward, apart from JobService.createJob(). Graeme Quoting Andre Merzky <andre(a)merzky.net>: > That would be useful! Malcolm should also have some idea on > what error handling is exposed by his implementation, that > might be useful as well. > > Our implementation has no job so far *sigh*. > > Thanks, Andre. > > > Quoting [G.E.POUND(a)soton.ac.uk] (Apr 20 2006): > > > > I can feedback the exceptions that I found essential from the Job > package in > > the Java bindings. > > > > Graeme > > > > > > > > Quoting Andre Merzky <andre(a)merzky.net>: > > > > > 90) exceptions missing in job! > > > - OPEN, URGENT > > > > > > Well, that says it all. > > > > > > Volonteers? > > > > > > Cheers, Andre. > > > > > > > > > -- > > > "So much time, so little to do..." -- Garfield > > > > > > > > > > > > > > > > > > > > > > > > -- > "So much time, so little to do..." -- Garfield > > >

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Requirement Document - Group feedback needed...
by Andre Merzky 22 Jun '06

22 Jun '06

Hi Group, the SAGA Requirement document is, finally, getting close to publication. Attached is the current version, which we intent to submit to GGF Office on Friday night. This is the 'last call' for the group to provide feedback on the draft, or (preferrably ;-) to give us a 'go ahead'. Two notable points might change before submission: the author list might get extended (please speak up if you feel left out, or have suggestions!); and the Java-CoG sections needs revision - we are waiting for input from Gregor on that. Please provide feedback as early as possible, to allow us to keep our Friday submission deadline. Comments after (local) businness hours are very likely to be ignored (for this version). Best regards, Shantenu and Andre. -- "So much time, so little to do..." -- Garfield

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ISSUE 130
by Andre Merzky 08 May '06

08 May '06

130) clearify the error handler interface for async calls - OPEN, URGENT I am unsure how the error handler interface applies to asynchroneous calls. Opinions? Tom, did you consider this? Cheers, Andre. -- "So much time, so little to do..." -- Garfield

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ISSUE 88
by Andre Merzky 08 May '06

08 May '06

88) for job: add clean_up (can also be called after termination) - OPEN, URGENT we got that request out of bound, to allow to remove old output files from past jobs. The request comes from medical guys IIRC, where data privacy is very important. Does anybody know how backend systems handle data cleanup? Should we add that method? Cheers, Andre. -- "So much time, so little to do..." -- Garfield

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Fwd (s.newhouse@omii.ac.uk): [OMII-ANNOUNCE] New OGSA-DAI Releases for GT4, OMII_2 and Axis
by Andre Merzky 29 Apr '06

29 Apr '06

FYI, Andre. ----- Forwarded message from Steven Newhouse <s.newhouse(a)omii.ac.uk> ----- > Date: Sat, 29 Apr 2006 09:56:15 +0100 > From: Steven Newhouse <s.newhouse(a)omii.ac.uk> > Subject: [OMII-ANNOUNCE] New OGSA-DAI Releases for GT4, OMII_2 and Axis > To: undisclosed-recipients: ; > > New OGSA-DAI Releases for GT4, OMII_2 and Axis > ============================================== > Data Access and Integration for the Grid > ---------------------------------------- > > Dear Registered User of OGSA-DAI, > > We are pleased to announce that the new 2.2 releases of > the OGSA-DAI software (in source and binary distributions for > GT4, OMII_2 and Axis) are available: > > * Direct from the project website: > http://www.ogsadai.org.uk/downloads/ > > The OGSA-DAI distribution contains Data Service components, as well as > example clients. These allow you to connect to MySQL, DB2, Oracle, > Postgres, SQL Server and eXist databases, as well as indexed text > files. They have been tested on Windows 2000/XP, Redhat Enterprise > Linux 3 and Solaris 9. > > This is the eighth major release of OGSA-DAI and provides support for > different "flavours" of OGSA-DAI and middleware platforms, with a Client > Toolkit API providing application-side abstraction across these > differences. > > Highlights of this release: > > Additional Resource Management Support: > - Support for creating lightweight transient data service resources. > - Activity supporting the withdrawal of data service resources. > > Relational Resource Aggregation: > - A data service resource that aggregates multiple relational data service > resources, with three related activities to query the aggregated > resource. > > New Activities: > - Data conversion: ResultSet to WebRowSet / CSV, ResultSetBLOB to bytes. > - Relational meta-data: Retrieve logical and physical database schema. > - XMLDB: XQuery support > - Projection and transformation: Remove duplicate rows, project onto a > column name or index, distribute numeric values onto spaces, generate > a random sample of input data. > - Delivery: Write data to a resource property, deliver data to null, > Deliver data to a SOAP attachment. > - Write a stream of bytes to a temporary file and output a reference. > > Security: > - Resource and activity level authorization interface. > - GSI Secure Conversation message-level security for inter-service > communications using data transport for OGSA-DAI WSRF. > > Other: > - Improved support for BLOBs in SQL query and update activities. > - Revamped logging, exceptions and internationalization. > - JARs required to compile OGSA-DAI source and run OGSA-DAI clients > in binary distribution are now bundled with OGSA-DAI. > - Numerous performance enhancements (summary of work on website). > > More detailed information is available in the Release Notes and > Documentation for the release: http://www.ogsadai.org.uk/documentation/ > The software and documentation is distributed under the OGSA-DAI Project > Licence: http://www.ogsadai.org.uk/downloads/licence.php > > Support is provided by the OGSA-DAI team at: > http://www.ogsadai.org.uk/support/ > > A users mailing list is available at users(a)ogsadai.org.uk > > We welcome all comments, and especially examples of usage or suggestions > for improvements or features. If you do not want to receive > notifications of new releases or updates, please send a message to > info(a)ogsadai.org.uk. > > Many thanks for using our software. > > ++ The OGSA-DAI team > ++ Part of OMII-UK > > -- The OGSA-DAI Project @ http://www.ogsadai.org.uk Queries and Support: > support(a)ogsadai.org.uk A UK eScience Grid Core Programme Project ----- End forwarded message ----- -- "So much time, so little to do..." -- Garfield

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ISSUE 108
by Andre Merzky 28 Apr '06

28 Apr '06

108) explain why we don't specify constness. Or should we? - OPEN, URGENT Obvious again. Opinions? Cheers, Andre. -- "So much time, so little to do..." -- Garfield

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ISSUE 131
by Andre Merzky 27 Apr '06

27 Apr '06

131) clearify what a NULL string/object is we sometimes return - OPEN, URGENT iObvious again. Opinions? Should that even go into the API spec, or into the language bindings? What should we say in the spec? Volonteers? Cheers, Andre -- "So much time, so little to do..." -- Garfield

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requirements from the requirements document
by Thilo Kielmann 27 Apr '06

27 Apr '06

Hi group, currently I am trying to distill a concise set of requirements from the requirements doc (draft) into the introduction of the API spec... What puzzles me is the terminology used in the requirements document. (And here I am referring solely to the bullet points with actual requirements.) We have 1 x "must be supported" a lot of times "should be supported" and "...messages on top of streaming... should be CONSIDERED..." and many versions of saying that something should NOT be considered... This all does not really match what the (strawman) API includes and excludes. I am afraid we need to get the requirements doc straight first... Do we need to refer to the (un)famous RFC that explains the meaning of "must" and "should" etc. to make the requirements stricter??? I am pretty sure this is all just a 'presentation' issue, but currently things are pretty fuzzy to me. Any good suggestion? Thilo -- Thilo Kielmann http://www.cs.vu.nl/~kielmann/

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ISSUE 30
by Andre Merzky 27 Apr '06

27 Apr '06

30) ACLs! - Later, after we get input from the security area and GFS - we actually got that input for files/name spaces, so that should be done! - OPEN, URGENT, MAJOR We have, up to now, no security for files and logical files in the API. Discussions at last GGF(s) showed that both security area and other groups like GFS and PE are unsure about the model to choose, but _all_ of them proposed to go for ACLs until there is something better available. So the proposal is to do that. - Are there arguments against that? - Is someone willing to draft ACL for the API? Dealine for this poll is in one week. If nobody objects, we will go for ACLs. Not sure who will work on it though. Cheers, Andre -- "So much time, so little to do..." -- Garfield

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