Miguel,
CCP4 are intending a major project on the ccp4i database and one of
the requirements will certainly be enabling multi-user access to
databases. I'm sure we will be looking for your input on other
requirements when we have someone in post.
Liz
On 22 Mar 2009, at 08:11, Miguel Ortiz Lombardia wrote:
> Dear ccp4i developers,
>
> Jumping into this issue a bit late...
> I have some criticism to make here, please take them friendly, I
> make them precisely because ccp4i is so useful.
>
> I presume there are good reasons behind the new design of CCP4i and
> its CCP4 DBhandler, but I think you have overlooked the fact that
> multi-processor, multi-user servers are quite common nowadays. Also,
> that many end-users don't know/don't need to know what a sqlite
> database is and will simply let the default preferences turned on,
> unaware of the consequences.
>
> In our lab this has led to people not using the best computer they
> have available, precisely by reasons similar to those raised by Jun
> Dong. I know of another case where a user got its database corrupted
> after getting confused because not being able to see their own
> projects/directories.
>
> I hope that in future versions of ccp4 the multi-users problem will
> be tackled or, at least, the default option is the old direct-access
> behaviour (if completely functional).
>
>
> With best regards,
>
>
> Miguel
>
> Le 18 mars 09 à 17:46, Ronan Keegan a écrit :
>
>> Dear Jun Dong,
>>
>> This is a problem with the new mechanism used in CCP4 to store
>> project and job data (the CCP4 DBhandler). The quick fix for now is
>> to turn it off and use the old mechanism for storing the project
>> data. To do this in the CCP4i interface go to "System
>> Administration", select "Database Configuration" and un-check the
>> radio button that sets the option to connect to the database server
>> on start up. Then have all your users restart CCP4i.
>>
>> Kind regards,
>>
>> Ronan Keegan
>> CCP4 Group
>>
>>
>> Jun Dong wrote:
>>> Dear CCP4 developers,
>>> I just wonder if there will be a fix for this problem. Basically
>>> when the first user is running ccp4i on a linux server and then
>>> when the second user tries to run ccp4i on the same linux server,
>>> the second user will only see the fist user's
>>> Directories&ProjectDir.
>>> Best regards, Jun Dong
>>> Division of Structural Biology
>>> The Wellcome Trust Centre for Human Genetics
>>> Oxford University
>>> Roosevelt Drive
>>> Oxford
>>> OX3 7BN
>>> Tel: 01865 287558
>>>
>>>
>>
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>>
>
> --
> Miguel Ortiz Lombardía
> Architecture et Fonction des Macromolécules Biologiques
> UMR6098 ( CNRS, U. de Provence, U. de la Méditerranée )
> Case 932
> 163 Avenue de Luminy
> 13288 Marseille cedex 9
> France
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> Fax: +33(0) 491 26 67 20
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>
>
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