Testbed Support for GridPP member institutes
> [mailto:[log in to unmask]] On Behalf Of Graeme Stewart said:
> CMS are modifying phedex to use FTS as well.
However, that doesn't mean that everything uses FTS, there will still be
a lot of file access via lcg-cr and friends, or indeed directly with
gridftp. I don't think there is any robust way to drain an SE, although
like many things it's been on the wish list for a long time (the EDG
bugzilla is now closed so I can't point people at my entries there any
more!). Probably the best you can do is take it out of the info system
some time before you turn it off, and perhaps point the close SE
somewhere else. In theory the new GlueServiceStatus table/object has a
flag to say whether a service is working or not, but I doubt that
anything looks at it.
> On the whole though, it would be far more disruptive to take the
> whole site down just for a 5 min reboot. With current job success
> rates on the grid, a rare transient job failure from an SE reboot is
> not terribly significant.
Possibly true, but we should at least be *trying* to improve!
Stephen
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