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nscd: Improve nscd.conf comments.

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This change adds a warning to nscd.conf about running multiple caching
services together and that it may lead to unexpected behaviours. Also we
add a note that enabling the 'shared' option will cause cache hit rates
to be misreported (a side effect of the implementation).

v2
- Rewrite comment to avoid implementation details.
This commit is contained in:
Carlos O'Donell 2019-03-20 22:11:32 -04:00
parent 4b7c74179c
commit d34d4c8022
2 changed files with 10 additions and 0 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2019-08-19 Carlos O'Donell <carlos@redhat.com>
* nscd/nscd.conf: Add warning and comment about shared option.
2019-08-19 Carlos O'Donell <carlos@redhat.com>
* nss/nsswitch.conf: Expand comments, and simplify defaults.

6
nscd/nscd.conf
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@ -3,6 +3,9 @@
#
# An example Name Service Cache config file. This file is needed by nscd.
#
# WARNING: Running nscd with a secondary caching service like sssd may lead to
# unexpected behaviour, especially with how long entries are cached.
#
# Legal entries are:
#
# logfile <file>
@ -23,6 +26,9 @@
# check-files <service> <yes|no>
# persistent <service> <yes|no>
# shared <service> <yes|no>
# NOTE: Setting 'shared' to a value of 'yes' will accelerate the lookup,
# but those lookups will not be counted as cache hits
# i.e. 'nscd -g' may show '0%'.
# max-db-size <service> <number bytes>
# auto-propagate <service> <yes|no>
#