New versions will still be able to find bstream files for files
created by old servers? -- Rob
On Jan 18, 2008, at 12:42 PM, Pete Wyckoff wrote:
[EMAIL PROTECTED] wrote on Fri, 18 Jan 2008 11:51 -0600:
On Jan 17, 2008, at 3:26 PM, Pete Wyckoff wrote:
I just noticed this bit in trove-dbpf/dbpf.h. The code carefully
builds ((<collid> << 24) | <handleid>) then does a modulo against
a power of 2, effectively stripping off all but the low bits of
the handleid.
The collid is not used in the hash at all. Just in case anybody
thought this was important. I've ever only used one collection per
server.
KEYVAL_GET_BUCKET is left over from the days when we did a keyval
DB per
file. With just one keyval DB now, we don't use that macro --
there's no
where in the code it gets called -- so you could safely remove it
if you
want.
As for BSTREAM_GET_BUCKET, that's funny that the coll-id isn't used
in the
hash, but it turns out not to matter. The buckets end up as
directories
that allow us to keep the bstream directories smaller, but here
too, all
those directories are within a directory for the entire
collection. Go
ahead and pull out the coll_id bits of the hash if you want.
I killed the extranneous stuff. Maybe it'll save somebody else some
head scratching in the future.
-- Pete
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