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From Brian Moseley <...@maz.org>
Subject Re: Performance bottleneck
Date Wed, 18 Jan 2006 17:08:01 GMT
On 1/18/06, Stefan Guggisberg <stefan.guggisberg@gmail.com> wrote:

> there's no general rule of thumb but since jcr's model is inherently
> hierarchical
> personally i would try to make use of this feature when designing a
> content model.

well, yes, that is self evident. but high scale usage suggests that
even individual levels of the hierarchy can become very large.

you don't seem to be particularly interested in addressing the issue
of performance degradation with large numbers of child nodes, so i
guess this thread will serve as documentation that we have to address
performance issues in our content models by introducing
implementation-specific workarounds. or am i misrepresenting your
level of interest?

i for one certainly expect to support 10,000 users in cosmo. at the
moment all users are stored as child nodes of the workspace root node.
i suppose i will introduce some intermediary layers of nodes between
the root and user nodes to cut down the number of children of any
particular node. i'm not particularly happy with that solution,
because it has a ripple effect on every part of my application, but if
that's what jackrabbit forces me to do to scale, i will.

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