Overview of Conditions Databases (CDBs)

MASTER

• people load conditions by hand
• PC farms load RC there every so often
• PC farms load the IR2 conditons there every so often
• snapshots of this are used for cond14boot

IR2

• gets current state of detector etc...
• cronjob takes a snapshot every 2hours (1hour) managed by bdbops (Adil,Artem,Wilko)

PC1

• loads IR2 snapshot when needed, checks snapshot time > endtime of run to process
• takes snapshot of itself n times a day, loads to master and makes snapshot availalable for transfer to Padova.

ERfarms

• mirror of PC CDB.
• loads PC snapshot when needed, checks shapshot time > endtime of PC processing of run to process

Two origins of conditions that are regulary updated to check:
CdbManager status -origin IR2
VIEW NAME : "PC1::Pre_Run4_Cosmics_Reprocessing_P12"
VIEW IDENTIFIER : 257::8
MODIFIED : 3252167313.0707807689 : Wed Jan 21 11:48:33 2004 (local time) 707807689 ns

last time IR2 origin updated before snapshot taken from IR2

can check with:
ir2runs -f%,stoptime -since 1
to see what runs are covered by this snapshot

CdbManager status -origin MASTER
VIEW NAME : "PC1::Pre_Run4_Cosmics_Reprocessing_P12"
VIEW IDENTIFIER : 257::8
MODIFIED : 3252172553.0242475000 : Wed Jan 21 13:15:53 2004 (local time) 242475000 ns

this the RC writen from the PC farm, last time updated before snapshot taken.

can check with:
oprruns -PCalibration -f%,stoptime -since 1
to see what runs are covered with this snapshot