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QSERV-L  April 2015

QSERV-L April 2015

Subject:

Re: db/table and query mgmt

From:

"Daniel L. Wang" <[log in to unmask]>

Reply-To:

General discussion for qserv (LSST prototype baseline catalog)

Date:

Fri, 10 Apr 2015 12:42:12 -0700

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (59 lines)

Or you can split "deleting a table" into:
* actually deleting the table
* making sure nothing running will be troubled by deleting the table
* making sure nobody new will be troubled by deleting the table
* making sure a newly-created table of the same name can be created 
without conflicting with the old one.

-Daniel

On 04/10/2015 12:31 PM, Jacek Becla wrote:
> And... I am starting to realize that DM-1038 is blocking
> DM-1703 (because we need to scan list of active queries
> before I can proceed with deleting a table)
>
>
> On 04/10/2015 12:28 PM, Jacek Becla wrote:
>> Andy
>>
>> There is something wrong with stories for DM-1703
>> (db/table mgmt) and DM-1038 (managing queries). (It
>> is my fault!). I want to clean it, but I'd like to
>> run it by you before doing it.
>>
>> 1038, which is about managing *queries* has
>>   - 1396 - implement db/table deletion
>>   - plus two stories which do make sense
>>
>> 1396 should NOT be part of 1038. It belongs to 1703.
>> And..  I think 1703 covers table deletion, but it is
>> missing database deletion story. Right?
>>
>> So, I am thinking about moving 1396 (which is 20 SP,
>> pretty heavy) from 1038 to 1396, and calling it
>> "Implement database deletion". I guess I'd split it
>> into two: "Design CSS schema to support db deletion",
>> and "Implement distributed database deletion".
>>
>> What do you think? Am I missing something?
>>
>> Jacek
>>
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