Middleware Software Shown in Demo
1) BitMap index
- in: logical request
- (73.39 < zdc2Energy < 94.94 AND -24.99 < qxb < -7.25)
- out: a set of logical files
- {set192_01.STAR,…, set287_07.STAR}
- Size of data to be indexed: 108 objects x 500 attributes x 4 bytes = 200 GB
2) Request Executer
- in: a set of files
- {uvcloud_csm_1982_1.nc,…, set287_07.STAR}
- out: selected URLs
- gsiftp://dg0n1.mcs.anl.gov/homes/asim/gsiftp/ set192_01.STAR
- hrm://[email protected]:4000/home/dm/srm/data1/gsiftp/sc2001/ set287_07.STAR
- Uses Replica Catalog
- Monitors transfer progress