[EMAIL PROTECTED] wrote on Mon, 21 Jan 2008 14:24 -0600:
> New versions will still be able to find bstream files for files created by
> old servers? -- Rob
Bstreams didn't move by this patch. Else we would have needed a
major version bump.
-- Pete
> 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.
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