(r5) CondDBIncompatibilities < LHCb

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-- Main.IllyaShapoval - 08-Oct-2012
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---++ General information
Here is the documentation on !CondDB compatibility tracking system: 
| *Title* | *Author(s)* | *Reference* | *Paper* | *Volume, pp* | *Date* |
| LHCb Software and Conditions Database Cross-Compatibility Tracking: a Graph-Theory Approach | I.Shapoval et al. | [[http://www.nss-mic.org/2012/ConferenceRecord/GetCRFile.asp?PID=N14-75][Proceedings of IEEE NSS 2012]] | [[http://cdsweb.cern.ch/record/1494124][LHCb-PROC-2012-058 ; CERN-LHCb-PROC-2012-058]] | 7 | October 2012 |
| Proposal on LHCb Software and Conditions Database Cross-Compatibility Tracking System: a Graph-Theory Approach | I.Shapoval et al. | LHCb Note | [[http://cdsweb.cern.ch/record/1453353][CERN-LHCb-PUB-2012-008]] | 10 | June 2012 |

---++ !CondDB compatibility related terminology

CTS - !CondDB compatibility tracking system;

The compatibility relations, tracked by the CTS, can be established between the following entities:
   * !CondDB state - an entity fully identifiable by a !CondDB tag (either local, or global);
   * Software state - an entity fully identifiable by a software package/project version;
   * Real/MC data - an entity fully identifiable by, e.g., a GUID of the data file, or any other wider identifier for a set of files.

---++ !CondDB incompatibility criteria/types

A) A !CondDB tag is:
   * (A1) not usable (job execution fails) with another !CondDB tag;
   * (A2) usable (no job execution failure) with another !CondDB tag BUT such usage is not valid;

B) A software package/project is:
   * (B1) not usable with a certain !CondDB tag (job execution fails);
   * (B2) usable with a certain !CondDB tag (no job execution failure) BUT such usage is not valid;

C) A software package/project is:
   * (C1) not usable (job execution fails) with certain MC/real data;
   * (C2) usable with certain MC/real data BUT such usage is not valid.

D) A !CondDB tag is:
   * (D) usable with certain MC/real data BUT such usage is not valid.

---++ Internal !CondDB incompatibilities
| *CondDB DDDB tag* | *CondDB LHCBCOND tag* | *CondDB SIMCOND tag* | *CondDB DQFLAGS tag* | *Incompatibility type* | *Reason* | *Contact person* |

---++ Brunel vs !CondDB incompatibilities
| *Package name* | *Package version* | *Brunel version* | *CondDB DDDB tag* | *CondDB LHCBCOND tag* | *Incompatibility type* | *Reason* | *Contact person* |

---++ DaVinci vs !CondDB incompatibilities
| *Package name* | *Package version* | *DaVinci version* | *CondDB DDDB tag* | *CondDB LHCBCOND tag* | *Incompatibility type* | *Reason* | *Contact person* |

---++ Gauss vs !CondDB incompatibilities
| *Package name* | *Package version* | *Gauss version* | *CondDB DDDB tag* | *CondDB SIMCOND tag* | *Incompatibility type* | *Reason* | *Contact person* |
Topic revision: r5 - 2013-01-11 - IllyaShapoval
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