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authorLudovic Courtès <ludo@gnu.org>2018-11-13 11:02:13 +0100
committerLudovic Courtès <ludo@gnu.org>2018-11-13 14:59:45 +0100
commitd3f75179e5741db29358e3e723146fd20ec79de9 (patch)
tree0994f9c9a433ae4296e0764ce551dd7ff009897a /doc/guix.texi
parent190877748eeadff475dca822847fb3a5cc4467b9 (diff)
downloadguix-d3f75179e5741db29358e3e723146fd20ec79de9.tar
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services: nscd: Add 'invalidate' and 'statistics' actions.
* gnu/services/base.scm (nscd-action-procedure, nscd-actions): New procedures. (nscd-shepherd-service): Add 'modules' and 'actions' fields. * gnu/tests/base.scm (run-basic-test)["nscd invalidate action"] ["nscd invalidate action, wrong table"]: New tests. * doc/guix.texi (Services): Mention 'herd doc nscd action'. (Base Services): Document the actions.
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diff --git a/doc/guix.texi b/doc/guix.texi
index 4b082c5f87..0ba034e822 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -10563,11 +10563,14 @@ Start,,, shepherd, The GNU Shepherd Manual}). For example:
The above command, run as @code{root}, lists the currently defined
services. The @command{herd doc} command shows a synopsis of the given
-service:
+service and its associated actions:
@example
# herd doc nscd
Run libc's name service cache daemon (nscd).
+
+# herd doc nscd action invalidate
+invalidate: Invalidate the given cache--e.g., 'hosts' for host name lookups.
@end example
The @command{start}, @command{stop}, and @command{restart} sub-commands
@@ -10965,6 +10968,27 @@ The Kmscon package to use.
Return a service that runs the libc name service cache daemon (nscd) with the
given @var{config}---an @code{<nscd-configuration>} object. @xref{Name
Service Switch}, for an example.
+
+For convenience, the Shepherd service for nscd provides the following actions:
+
+@table @code
+@item invalidate
+@cindex cache invalidation, nscd
+@cindex nscd, cache invalidation
+This invalidate the given cache. For instance, running:
+
+@example
+herd invalidate nscd hosts
+@end example
+
+@noindent
+invalidates the host name lookup cache of nscd.
+
+@item statistics
+Running @command{herd statistics nscd} displays information about nscd usage
+and caches.
+@end table
+
@end deffn
@defvr {Scheme Variable} %nscd-default-configuration