Re: slapd, bdb, 32-bit -> 64-bit

[Frode Nordahl <frode@nordahl.net>]

On 16. okt. 2006, at 00.01, Howard Chu wrote:

> Frode Nordahl wrote:
> > Hello,
> > I am trying to use a slapd BDB database created on a 32-bit intel  
> > system on a 64-bit (amd64/EMT64) system. Running slapcat on the  
> > database works fine, but when the server is started, ldapsearch is  
> > unable to find anything.
> > I understand that there are architectural differences between a  
> > 32- bit  and 64-bit systems, but I don't think Berkeley DB have  
> > any problems with having its data being interchanged between the  
> > platforms.
>
> No, this won't work. On a 64 bit build the entryIDs in the database  
> are 64 bits. You must export to LDIF and re-import the DB.

Thank you for your reply!

> I spent a lot of time thinking over this decision; whether to keep  
> entryIDs 32 bits wide for 64 bit builds. Ultimately I decided that  
> 64 bits was better. We have a deployment that has upwards of 3  
> billion entries, and they add/delete millions of entries per day,  
> so restricting things to only 4 billion entryIDs would have been  
> too much of a restriction.

I think you made a wise decision. 5-10 years from now most servers  
will have been replaced by newer systems capable of running 64-bit  
operating systems, and this will be a thing of the past.

--
Frode Nordahl