1. Nov 1, 2002D0 DB Taking Stock1 Trigger Database Status and Plans Elizabeth Gallas – FNAL CD (with recent help from Jeremy Simmons, John Weigand, and Adam Lyon) Trigger Working Page http://www- d0.fnal.gov/~gallas/d0_private/trig/trigger.html D0 Databases Taking Stock Meeting November 01, 2002

2. Nov 1, 2002D0 DB Taking Stock2 Outline Purpose Properties and Implementation Interfaces Urgent and short term projects Costs of incomplete short term projects Longer term projects

3. Nov 1, 2002D0 DB Taking Stock3 Purpose Store –all global triggerlists used online in Run 2 –benchmarch triggerlists for simulation Generate: –precise programming for trigger configuration, determining which events are recorded and which are thrown away. ONLINE SIMULATION The configuration format: ‘xml’, Extensible Markup Language (XML) universal format for structured docs and data on the web The trigger ‘xml’ does not contain all the information stored in the trigger database, specifically wrt versioning, how one trigger list relates to another triggerlist, or descriptions. Report –trigger configuration settings for use by offline analysis programs –Et thresholds, eta ranges... to the collaboration (web), with some documentation features –not intended as a substitute for trigger subsystem documentation !

4. Nov 1, 2002D0 DB Taking Stock4 Implementation 41 Tables and 33 Views IN USE since December 2001 Small but Complex –not large by database standards, but implementation is complex –Complexity reflects that of the D0 Trigger System, which is designed to be programmable at run time –Three levels of decision making Level 1 - hardware, firmware –From many L1 detector subsystems Level 2 - firmware, software Level 3 - software Nearly 25000 records –All data is entered by people trigger lists are a unique combination of conditions which are designed individually to configure a complex system –User interfaces – take time to implement Nearly no duplicate records –Once a trigger list element is created, other trigger lists use it

5. Nov 1, 2002D0 DB Taking Stock5 http://www-d0.fnal.gov/trigger_meister/trigdb/Interfaces

6. Nov 1, 2002D0 DB Taking Stock6 Short Term To Do List Note: Ignoring minor problems in existing interfaces Note: All items on this Short Term List Design is complete, just awaiting implementation or completion General Support Issues (rely upon support) –DAN changes (JohnWeigand and Jeremy Simmons) –Propagation of ‘Current’ Status flags –Views need tuning (very slow) –Secure Web Server Server –Reorganize Makefiles for server –Double check StatUsed flags before delete/update –Checks in server lacking before db inserts –Duplicate methods were created due to rushed implementation of Streaming Xml Generator – –Maintanance, Upgrades Most recently, changes for streaming Upcoming, changes for L2 preprocessors

7. Nov 1, 2002D0 DB Taking Stock7 Short Term To Do List Entry Client –Triggerlist Transformation – partial implementation Allows replacement of elements at the lowest level –Modifications needed for Streaming Rushed – implementation only in one interface (but other interfaces would overwrite that information) –Status Interface – add record selection 1/10 th implementation by Adam for Streaming by trigger or trigger list –L1 Dialogs (L1 Cal programming) Started by Jeremy in August 2001 User interfaces are time consuming –L2 Preprocessor programming Reporting Client –Dependency report Needed to check statCurr propigation and Triggerlist Transformation Entry Client –Neoterms report does not exist –Streams need to be added to reports Tying trigger lists to Releases –New db tables, server and client methods –Add release information to reports

8. Nov 1, 2002D0 DB Taking Stock8 Cost of Short Term To Do List Data entered by hand client interfaces dne –Data entered into production using sqlplus or sqlldr –Data entered by the only person writing the code –Data Integrity checks bypassed –Examples: L1 Dialogs (Calorimeter programming) Crates and Crate List Groups L2 Preprocessors Time wasted due to erroneous entry –StatCurr propagation not working yet Unable to make needed changes quickly –Global_CMT-9.00 – forced to remove triggers because L3 failed to report p12 changes in time Changes could not be made in time because transformation tool is not complete L3 has not switched to making release objects in the database because release/db system incomplete Required reports – hamper data entry, retrieval –Do not exist Neoterms Streaming –Not completely functional Dependency Correlation between objects

9. Nov 1, 2002D0 DB Taking Stock9 Mid to Long Term To Do List Entry and Report Client –Implement short and long format reports –Enable searches by date, user –Methods for displaying differences between trigger elements MISWEB Client –Update as Run Summary Database Implementation of Rules checking Online downloads directly from DB Help / Documentation New methods: –L1 Simulation to Firmware mapping –L1 Board and Board Component registry