Wednesday, May 18, 2022

[389-users] Re: 389 scalability

> On 19 May 2022, at 00:48, Morgan Jones <morgan@morganjones.org> wrote:
>
> Hello Everyone,
>
> We are merging our student directory (about 200,000 entries) into our existing employee directory (about 25,000 entries).
>
> They're a pair of multi-master replicas on virtual hardware that can easily be expanded if needed though hardware performance hasn't been an issue.
>
> Does this justify creating separate database for students? Aside from basic tuning are here any big pitfalls we should look out for?

I think extra databases creates more administration overhead than benefit. The benefit to extra databases is "improved write performance" generally speaking. But the trade is subtree queries are more complex to eval for the server.

It's far easier for you the admin, and also support staff if you keep it as a single db. We have done huge amounts to improve parallel reads in recent years, so you should see large gains when you change from 1.3 to 1.4 or 2.0 :)





>
> We're still on CentOS 7 for the time being:
> [root@prdds21 morgan]# rpm -qa|grep 389
> 389-admin-1.1.46-4.el7.x86_64
> 389-console-1.1.19-6.el7.noarch
> 389-dsgw-1.1.11-5.el7.x86_64
> 389-admin-console-1.1.12-1.el7.noarch
> 389-ds-1.2.2-6.el7.noarch
> 389-ds-base-libs-1.3.10.2-13.el7_9.x86_64
> 389-ds-base-1.3.10.2-13.el7_9.x86_64
> 389-adminutil-1.1.22-2.el7.x86_64
> 389-admin-console-doc-1.1.12-1.el7.noarch
> 389-ds-console-doc-1.2.16-1.el7.noarch
> 389-ds-console-1.2.16-1.el7.noarch
> [root@prdds21 morgan]#
>
> thank you,
>
> -morgan
>
>
>
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--
Sincerely,

William Brown

Senior Software Engineer,
Identity and Access Management
SUSE Labs, Australia
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