Hi,
I have a r/w + MSS setup.
My little test from the ROOT shell:
root [0] File *f
=TFile::Open("root://redirector.cern.ch//tmp/xrootd/new.root","create")
root [1] TTree *t = new TTree("t","title")
root [2] t->Write()
Now I use another shell to execute this perl client command:
@ans = XrdClientAdmin::XrdRm("/tmp/xrootd/new11.root");
This succeeds and I can see, that the file was indeed erased from the
respective leaf node (and the cache and the MSS!), even though the other
client should have a lock on it!!!
Moreover, in my ROOT session I go happily on writing to the file:
root [3] TTree *t2 = new TTree("t2","title")
root [4] t2->Write()
(I can see on the leaf node log that it correctly acknowledges the bytes sent)
root [5] f->Close()
(here, too, I receive no errors upon closing and the leaf node log also shows
no peculiar entries.).
I try to open my file again, and I fail
root [0] File *f
=TFile::Open("root://redirector.cern.ch//tmp/xrootd/new.root","read")
(I can see that it has not been recreated!). Where have my bytes gone?
Background:
I'm trying to investigate how an external MPS (Migration, Purge, Staging)
script could interact with the xrootd system.
Cheers,
Derek
--
Dr. Derek Feichtinger Tel: +41 22 767 10 07
LCG/ARDA Group email: [log in to unmask]
CERN http://people.web.psi.ch/feichtinger
CH-1211 Genève 23
