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QSERV-L  October 2013

QSERV-L October 2013

Subject:

notes from meeting 10/17/2013

From:

Jacek Becla <[log in to unmask]>

Reply-To:

General discussion for qserv (LSST prototype baseline catalog)

Date:

Thu, 17 Oct 2013 16:41:18 -0700

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (81 lines)

Present: Jacek (1st half only), BillC, K-T, Douglas,
AndyH, Serge, Fabrice, Daniel


1st half
========

wishlist
  - will discuss in details during meeting next Thursday
  - don't hold back on mentioning low priority things,
    we will prioritize later
    - and we will assign to Winter14 (Feb) and Summer14 (Aug)

cleanup of the existing prototype
  - definitely worth pushing changes from various branches
    to the master (eg code used for 300-node tests)
  - don't worry too much about pushing new features, we will
    revisit during redesign and reuse that code as appropriate,
    it won't be lost (eg, new partitioner)
  - this should not drag for too long. 2-4 weeks max, e.g.
    finish and cut "final" release of the pre-redesign
    version of qserv before hackathon

documentation
  - fdr docs are better than wiki, need to bring wiki up to date
  - also, fdr docs structure (LDM-135) better/cleaner than
    what we have in wiki
    - although recent changes to trac qserv pages helped
  - keeping similar structure in wiki would be useful,
    autogenerating from trac to ldm-135 is too much,
    want more details for-developers in trac, ldm-135 needs
    to be fully in sync with costing model etc...

remaining notes below.... (thanks Daniel!)

Jacek



On 10/17/2013 03:30 PM, Daniel L. Wang wrote:
>
> Discussion on code/design documentation
>    * We should use MathJax for documenting math in doxygen comments
>    * Could try Sphinx, but it's only good for code doc, ala doxygen or
> javadoc, and not for design doc
>    * Trac is going away sometime this FY14 (before construction)
>
> Restructuring of Qserv Trac
>    * multiple pages on installation need to be made
> consistent/orthoganal/up-to-date. Fabrice and Douglas will work on this
> in conjunction with pushing out a new qserv release.
>
>
> Modules (see whiteboard diagram sent by K-T)
>    * Bill presented module organization for qserv using MVC concepts
> (model = domain-specific logic; controller = program flow)
>    * Diagram shows high-level blocks for master + worker
>    * Added metadata, metadata API to original diagram, connects to many
> points
>    * overall, all agreed it looks good at the high level
>    * Homework for Tuesday 9:30am meeting (all):
>      * Think about lower levels not discussed during meeting. See
> "Redesign (MVC-based version)" on
> https://dev.lsstcorp.org/trac/wiki/db/Qserv/Components
>      * Consider code you have written or will write for Qserv. Where does
> it fit?
>      * Do future features/code fit?
>      * What's missing? Are there items which will disappear?
>      * If your code does not fit in those modules, please add the
> appropriate modules
>      * Are there code blocks that spans multiple modules?
>
> Other homework: wishlist, brokenness on Trac
>

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