Ray
I'm not sure that 128 CPUs is consistent with the current estimates for
ingest. (Jacek?) Currently, we expect ingest to only require a few
nodes, yes?
A few nodes for ingest at the base (plus a few for serving archived data
at the base). We did not look closely at the load related to ingest
at the main archive, we will need few more CPUs there because there
are more activities (for instance reprocessing), and heavy
incremental updates (adding data/indexes to existing data).
128 CPUs does sound like a bit too much though.
5. How is a database backup done? I presume we cant take the
database offline while we back it up. Do we run a duplicate
database at the mirror site and update both databases simultaneously?
We would regularly replicate new records from the archive center database
to the data center.
yes, without taking database offline
thanks,
Jacek
_______________________________________________
LSST-data mailing list
[email protected]
http://www.lsstmail.org/mailman/listinfo/lsst-data
