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nixos/doc: add Prometheus stateDir handling to rl-1909.xml

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This commit is contained in:
Bas van Dijk 2019-04-09 10:00:05 +02:00
parent c95179b52f
commit b423b73adc
1 changed files with 14 additions and 4 deletions
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18
nixos/doc/manual/release-notes/rl-1909.xml
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@ -66,12 +66,22 @@
<itemizedlist>
<listitem>
<para>
The directory where Prometheus will store its metric data is now
managed by systemd's StateDirectory mechanism. It still defaults
to <literal>/var/lib/prometheus</literal>.
</para>
<para>
Its location can be specified by the new
<option>services.prometheus.stateDir</option> option which
defaults to <literal>prometheus</literal>. Note that this should
be a directory relative to <literal>/var/lib/</literal>.
</para>
<para>
The option <option>services.prometheus.dataDir</option> has been
removed. The directory where Prometheus will store its metric data will
now always be set to <literal>/var/lib/prometheus</literal> and to
<literal>/var/lib/prometheus2</literal> when using
<option>services.prometheus2</option>.
deprecated. You can still set it but it's now required to have
<literal>/var/lib/</literal> as a prefix and you can't set
<option>services.prometheus.stateDir</option> at the same time.
</para>
</listitem>
</itemizedlist>