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Fedora-specific warnings about using nscd with sssd, and that
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shared mappings don't show up in nscd -g statistics.
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diff --git a/nscd/nscd.conf b/nscd/nscd.conf
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index 3730835c50a349c4..b66faa3ca33b4b64 100644
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--- a/nscd/nscd.conf
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+++ b/nscd/nscd.conf
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@@ -3,6 +3,9 @@
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 #
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 # An example Name Service Cache config file.  This file is needed by nscd.
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 #
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+# WARNING: Running nscd with a secondary caching service like sssd may lead to
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+#          unexpected behaviour, especially with how long entries are cached.
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+#
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 # Legal entries are:
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 #
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 #	logfile			<file>
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@@ -22,7 +25,12 @@
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 #       suggested-size		<service> <prime number>
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 #	check-files		<service> <yes|no>
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 #	persistent		<service> <yes|no>
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+#
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 #	shared			<service> <yes|no>
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+#	NOTE: Setting 'shared' to a value of 'yes' will accelerate the lookup
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+#	      with the help of the client, but these lookups will not be
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+#	      counted as cache hits i.e. 'nscd -g' may show '0%'.
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+#
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 #	max-db-size		<service> <number bytes>
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 #	auto-propagate		<service> <yes|no>
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 #