Remove obsolete/empty databases from mongo db

[AndrewVSutherland]

The following databases are either empty or have only empty collections in them:

mwf_dbname
modularforms_2010
quadratic_twists
modforms
WebNewForms

Several others are never referenced by any of the code in LMFDB/lmfdb and have no inventory information in LMFDB/inventory (I will post a list later).

These should definitely be removed from the cloud server (so that they do not appear on http://www.lmfdb.org/api/, for example). Presumably the empty ones (and possibly others) can/should also be removed from the mongo db on Atkin.

[JohnCremona]

I can think of no reason for one of us not to remove these 5 right now. If they are removed from Warwick what happens with replication? I don't know how to connect or the cloud replicas.

[AndrewVSutherland]

I can take care of the cloud. If you delete it on Warwick I believe
this should get propagated automatically to the replicas (but
@edgarcosta can confirm).

On 2016-05-21 10:14, John Cremona wrote:

I can think of no reason for one of us not to remove these 5 right
now. If they are removed from Warwick what happens with replication?
I don't know how to connect or the cloud replicas.

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[AndrewVSutherland]

@JohnCremona, @edgarcosta The five empty databases listed above have been removed from the cloud mongo db (running on ms.lmfdb.xyz) and no longer appear on www.lmfdb.org/api/

[JohnCremona]

You beat me to it, I have removed the first one....and now the others.
There is no such thing as "the mongo server at atkin". The warwick mongoserver is on lmfdb.warwick.ac.uk and looking at beta.lmfdb.org/api you can verify that they are gone from there.

[AndrewVSutherland]

@JohnCremona, @davidfarmer Do we need the databases knowledge_5, knowledge_6, knowledge_7, knowledge_8, knowledge_9, and knowledge_tmp? It looks to me like the knowledge database contains everything that is in these.

[AndrewVSutherland]

@sehlen Do we still need the databases modularforms and modularforms_raw? It looks like the only place where modularforms is referenced is in test_root.py (which should presumably be changed to modularforms2).

[edgarcosta]

@AndrewVSutherland The knowledge_* stuff is my fault. Cleaning it now.

edit: Done

[AndrewVSutherland]

@JohnCremona I presume it makes sense to remove the "limbo" database from the cloud server (and possibly Warwick as well?)

[jwj61]

Yes. It was the original Artin representation database, but has been superseded by artin. So yes, it can be deleted.

[JohnCremona]

OK then I'll do the honours at the Warwick end...done (limbo dropped).

[edgarcosta]

What about "MaassWaveForm" (without the "s")?

There are 2 files that mention it:

• never ends up using it : https://github.com/LMFDB/lmfdb/blob/master/lmfdb/modular_forms/maass_forms/maass_waveforms/backend/mwf_utils.py
• Wants to check for "MaassWaveForms" instead?: https://github.com/LMFDB/lmfdb/blob/master/lmfdb/test_root.py

[edgarcosta]

limbo also dropped at ms.lmfdb.xyz

[JohnCremona]

mongo makes it much too easy to create a new database by mistake after a typo. At least, that was true before we added authentication.

[fredstro]

The collection
‘MaassWaveForm’
can be dropped, similarly the collections
‘modularforms_raw’ (this is not really used and was something I was experimenting with)
and
‘modularforms’ (this was the predecessor to ‘modularforms2’ and hasn’t been used since 2012)
can both be dropped.

Fredrik

On 21 May 2016, at 16:58, edgarcosta notifications@github.com wrote:

What about "MaassWaveForm" (without the "s")?

There are 2 files that mention it:

never ends up using it : https://github.com/LMFDB/lmfdb/blob/master/lmfdb/modular_forms/maass_forms/maass_waveforms/backend/mwf_utils.py https://github.com/LMFDB/lmfdb/blob/master/lmfdb/modular_forms/maass_forms/maass_waveforms/backend/mwf_utils.py
Wants to check for "MaassWaveForms" instead?: https://github.com/LMFDB/lmfdb/blob/master/lmfdb/test_root.py https://github.com/LMFDB/lmfdb/blob/master/lmfdb/test_root.py
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