Re: [WIP] WiredTiger Backend

[Howard Chu <hyc@symas.com>]

HAMANO Tsukasa wrote:
> Hi,
>
> I'm writing OpenLDAP WiredTiger backend.
> It will get high write throughput and high concurrency performance.
> Now this backend module is incomplete but basic feature is working, So
> I publish the code.
> https://www.osstech.co.jp/download/hamano/openldap/0001-OpenLDAP-WiredTiger-Backend-p1.patch

Interesting, thanks for the contribution. Looks like there is no manpage 
though, do you have one?

> Some note:
> * slapadd, slapcat, slapindex will works.
> * LDAP BIND, ADD, DELETE, SEARCH will works.

How well does it work, good enough to run benchmarks now?

> * MODIFY, MODRDN does not implement yet.
> * deref search does not implement yet.
> * WiredTiger is not support multiprocess access yet.
>    It mean that we can't to do slatcat while running slapd.
>    It will be supported in the future.

You should use alock in the meantime then, to prevent multiprocess access.

> * This backend module may have a issue about licensing when
>    distributing whole binary under OpenLDAP Public Licence.
>    Now WiredTiger, Inc are working cooperatively toward a resolve the
>    issue.
>
> I'm glad if you get to try it and give me advice.
> Thank you.


--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/