Difference: FAQCondDB (8 vs. 9)

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Frequently Asked Questions about the Conditions Database

This FAQ presents answers to questions regarding the functionnalities and usage of the Conditions Database and the Condition management framework of LHCb. We hope it to be as up to date as possible, as the CondDB project is presently in a strong mutation phase. Do not hesitate to contact me if your question is not answered below.

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  It is the official CondDB used for offline applications. It will contain all the conditions produced online and the conditions produced offline which have been approved by super users. All the CondDB distributed on the GRID will be total or partial copies of the Master CondDB.

  • Who is allowed to write in the Master Conditions Database ?
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Conditions produced online will be stored in a special instance of the CondDB wich will be automatically synchronised with the Master CondDB. Appart from this "automatic" writting process, a small number of super users will have the right to edit the CondDB, either to put new approved conditions values, set new tags, etc. It is unlikely that removing data from the CondDB will be allowed.
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Conditions produced online will be stored in a special instance of the CondDB wich will be automatically synchronised with the Master CondDB. Appart from this "automatic" writting process, a small number of super users will have the right to edit the CondDB, either to put new approved conditions values, or set new tags, etc. It is unlikely that removing data from the CondDB will be allowed.
 
  • What about the "standard users" ? Where can they store new conditions ?
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Standard users will have the possibility to create their own instance of the Master CondDB, either total or partial, and be able to manage it as they which. This means that they can write their own conditions in it, apply tags, etc. whithout risk of causing trouble to the Master CondDB
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Standard users will have the possibility to create their own instance of the Master CondDB, either total or partial, and be able to manage it as they wish. This means that they can write their own conditions in it, apply tags, etc. whithout risk of causing trouble to the Master CondDB
 
  • How do a user will broadcast new conditions ?
    If a user thinks that the conditions he has produced might be of interest for the community, then he will submit them to a super user for approval. If approved, the super user will update the Master CondDB.
 
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