[server] Make connection pooler configurable and set better default values Drop the configuration connections-pool-size and add new configurations options: * connections-pool-min-size. Set to 0 by default so we open connections only when needed. This avoid opening min-size*processes connections at startup, which is, it think, a good default. * connections-pool-max-size. Set to 0 (unlimited) by default, so we move the bottleneck to postgresql. * connections-idle-timeout. Set to 10 minutes. I don't have arguments about this except that this is the default in pgbouncer.

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Additional services

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===================

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In this chapter, we introduce services crossing the *web -

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repository - administration* organisation of the first parts of the

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CubicWeb book. Those services can be either proper services (like the

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undo functionality) or mere *topical cross-sections* across CubicWeb.

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.. toctree::

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   :maxdepth: 2

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   undo

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