Keywords: DataAccWG
Ani: many thanks for organizing this telecon and writing the notes.
We discussed how to organize spatial and temporal data in the
object database schema so that the base camp database can quickly get
the data it needs to generate alerts. Tim suggested the object db be
partitioned temporally to ensure fast querying. However this may not be
a big issue, i.e. the spatial partitioning will largely take care of
good query performance, even for temporal data.
Did you discuss use cases other than object db at base camp?
Should we discuss it at one of the next meetings?
Action Item
Sergei or Kem to come up with query/use-case for base camp request
for info from object db required for alert generation
Sergei/Kem: can you confirm that you actually agree to do that?
I understand you were not present at the meeting...
Does the UML model think of alert generation as part of association
pipeline?
- we didnt have the answer to that
Yes, Generate Alert is part of the Association Pipeline use case.
As far as I know we are not going to focus in details on
generating alerts during DC1. Tim, when are we planning to
set up an environment for trying alert generation?
- do either of the current prototype schemas (UW and sergei's)
have time partitioning in mind?
Sergei, Nicole and Russ, can you answer this?
- we shd start posting these schemas
- is the precursor schema in docushare? dont know, tho' it is
in the plone
Yes, see Logical View --> Logical Model --> PrecursorSchema
- since the data in the object db will be spatially partioned, and
each night's data will be a certain part of the sky, the query
from the base camp db will in fact be limited to a small number of
partitions
It would be nice to have some numbers how much data/how many rows
we are talking about. Tim, where should I look for these numbers?
Should we come back to this topic in one of the next telecons?
thanks,
Jacek
On Fri, 24 Feb 2006, Ani Thakar wrote:
Keywords: DataAccWG
Hi All,
Sorry for the short notice, but if we have a quorum, we will have a
DataAccWG
telecon today at 11:00 PST.
Phone number: 866 330 1200
passcode: 300 2363
Agenda to include:
Spatial and Temporal Aspects (Jacek suggested this)
How do we propose to handle multiple targetings for spectroscopy?
Ingest tests with MySql (I know Jaeck isn't here, but had some
questions for Sergei)
Thanks.
Ani
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