Re: Feature Request: Allow separate location of dn2id and id2entry (ITS#3377)

[hyc@symas.com]

quakelee@gmail.com wrote:

>Full_Name: Xin ZHAO
>Version: 2.2.18
>OS: FreeBSD
>URL: ftp://ftp.openldap.org/incoming/
>Submission from: (NULL) (211.167.58.66)
>
>
>A properly setting of block size for file system will increase or decrease
>performance of file access.  If it is possible to separate dn2id and id2entry
>databases' location (Normally, the former uses 4K page size and the latter uses
>16K), then it will be possible to separate them into different filesystems and
>hence optimize performance for large file systems.
>
It doesn't seem to me that such a feature would get very much use. You 
can just symlink the files to another location if you really need to. 
The size of the dn2id database page is not fixed at all, it is whatever 
the underlying filesystem uses, so it will already be optimal by 
default. The 16K of the id2entry database is already an even power-of-2 
and multiple of the common page sizes in use today, so I don't see any 
compelling reason to try to optimize it further.

-- 
  -- Howard Chu
  Chief Architect, Symas Corp.       Director, Highland Sun
  http://www.symas.com               http://highlandsun.com/hyc
  Symas: Premier OpenSource Development and Support