Add warnings and notes to /etc/nsswitch.conf and /etc/nscd.conf.

This commit is contained in:
Carlos O'Donell 2019-02-07 17:15:12 -05:00
parent a84cd6b530
commit 82a97343d6
3 changed files with 43 additions and 2 deletions

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@ -0,0 +1,30 @@
Fedora-specific warnings about using nscd with sssd, and that
shared mappings don't show up in nscd -g statistics.
diff --git a/nscd/nscd.conf b/nscd/nscd.conf
index 3730835c50a349c4..b66faa3ca33b4b64 100644
--- a/nscd/nscd.conf
+++ b/nscd/nscd.conf
@@ -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>
@@ -22,7 +25,12 @@
# suggested-size <service> <prime number>
# 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
+# with the help of the client, but these 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>
#

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@ -87,7 +87,7 @@
Summary: The GNU libc libraries
Name: glibc
Version: %{glibcversion}
Release: 7%{?dist}
Release: 8%{?dist}
# In general, GPLv2+ is used by programs, LGPLv2+ is used for
# libraries.
@ -158,6 +158,12 @@ Patch23: glibc-python3.patch
Patch28: glibc-rh1615608.patch
Patch30: glibc-warning-fix.patch
# In progress upstream submission for nsswitch.conf changes:
# https://www.sourceware.org/ml/libc-alpha/2019-03/msg00425.html
# In progress upstream submission for nscd.conf changes:
# https://www.sourceware.org/ml/libc-alpha/2019-03/msg00436.html
Patch31: glibc-fedora-nscd-warnings.patch
##############################################################################
# Continued list of core "glibc" package information:
##############################################################################
@ -1890,6 +1896,9 @@ fi
%files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
%changelog
* Thu Mar 07 2019 Carlos O'Donell <carlos@redhat.com> - 2.29.9000-8
- Add warnings and notes to /etc/nsswitch.conf and /etc/nscd.conf.
* Mon Mar 18 2019 DJ Delorie <dj@redhat.com> - 2.29.9000-7
- Auto-sync with upstream branch master,
commit 78919d3886c9543279ec755a701e279c62b44164.
@ -1955,7 +1964,6 @@ fi
- Break further lines before not after operators.
- Add and move fall-through comments in system-specific code.
* Fri Mar 1 2019 DJ Delorie <dj@redhat.com> - 2.29.9000-3
- Add .gdb_index to debug information (rhbz#1680765)

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@ -24,6 +24,9 @@
#
# 'sssd' performs its own 'files'-based caching, so it should
# generally come before 'files'.
#
# WARNING: Running nscd with a secondary caching service like sssd may lead to
# unexpected behaviour, especially with how long entries are cached.
# To use 'db', install the nss_db package, and put the 'db' in front
# of 'files' for entries you want to be looked up first in the