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QSERV-L  February 2013

QSERV-L February 2013

Subject:

Re: Proposition of discussion for our phone meeting : UPDATE

From:

Jacek Becla <[log in to unmask]>

Reply-To:

General discussion for qserv (LSST prototype baseline catalog)

Date:

Wed, 6 Feb 2013 12:23:21 -0800

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (48 lines)

Fabrice

Regarding #7, for sample queries related to PT1.1,
I'd suggest to use:

https://dev.lsstcorp.org/trac/wiki/db/Qserv/250NodeTestPlan

However, PT1.1 is not good enough for testing this:

https://dev.lsstcorp.org/trac/wiki/db/Qserv/PerTableKeyCache

because this test exposes the fact that we have one huge
table (RunDeepForcedSource), and some small tables, such
as the Science_Ccd_Exposure, or RefObject.

It'd make more sense to use the Winter13 data set for this
test. That data set is on the large side... a little over
2 TB. I believe we will be moving more towards relying
on that data set in the future, so it makes sense to
get it. We are in the process of partitioning it right
now on slac machines. We are happy to make it available
to you, if you have space to take it, either as csv
files, or partitioned data.

Jacek


On 02/06/2013 10:08 AM, Fabrice Jammes wrote:
> Hello Daniel, Douglas and Jacek,
>
> Some typos and formatting problems were presents in the previous questions
> list. The good one is attached to this mail. Thanks to use this one.
>
> Emmanuel and Fabrice
>
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