Speaker
Dr
Paul Millar
(DESY)
Description
In the gLite grid model a site will typically have a Storage Element (SE) that has no direct mechanism for updating any central or experiment-specific catalogues. This loose coupling was a deliberate decision that simplifies SE design; however, a consequence of this is that the catalogues may provide an incorrect view of what is stored on a SE.
In this paper, we present work to allow catalogue re-synchronisation. This shows how catalogues can be more certain that the files are stored on the SE and how more transitory metadata may be propagated with low latency; for example, whether a file stored on tape is currently available on disk.
Author
Dr
Paul Millar
(DESY)
Co-author
Jens Jensen
(STFC)
