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54 lines
2.1 KiB
54 lines
2.1 KiB
17 years ago
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[COPY] --- SDE-COPYRIGHT-NOTE-BEGIN ---
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[COPY] This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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[COPY]
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[COPY] Filename: package/.../unscd/unscd.desc
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[COPY] Copyright (C) 2008 The OpenSDE Project
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[COPY]
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[COPY] More information can be found in the files COPYING and README.
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[COPY]
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[COPY] This program is free software; you can redistribute it and/or modify
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[COPY] it under the terms of the GNU General Public License as published by
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[COPY] the Free Software Foundation; version 2 of the License. A copy of the
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[COPY] GNU General Public License can be found in the file COPYING.
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[COPY] --- SDE-COPYRIGHT-NOTE-END ---
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[I] A reliable replacement for Glibc's nscd
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[T] Nscd is a daemon that provides a cache for the most common name service
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[T] requests.
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[T]
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[T] As designed, nscd is a multithreaded program which calls NSS libraries.
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[T] These libraries are not part of libc, they may be provided
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[T] by third-party projects (samba, ldap, you name it).
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[T] Thus nscd cannot be sure that libraries it calls do not have memory
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[T] or file descriptor leaks and other bugs.
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[T]
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[T] Since nscd is multithreaded program with single shared cache,
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[T] any resource leak in any NSS library has cumulative effect.
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[T] Even if an NSS library leaks a file descriptor 0.01% of the time,
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[T] this will make nscd crash or hang after some time.
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[T]
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[T] Of course bugs in NSS .so modules should be fixed, but meanwhile
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[T] we do want nscd which does not crash or lock up.
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[T]
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[T] unscd is a single-threaded server process which offloads all NSS
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[T] lookups to worker children (not threads, but fully independent
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[T] processes). Cache hits are handled by parent. Only cache misses
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[T] start worker children. This design is immune against resource leaks
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[T] and hangs in NSS libraries. It is also many times smaller and it
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[T] emulates glibc nscd pretty closely.
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[U] http://busybox.net/~vda/unscd
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[A] Denys Vlasenko <vda@busybox.net>
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[M] Alejandro Mery <amery@opensde.org>
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[C] extra/tool
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[L] GPL
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[S] Stable
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[V] 0.33
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[P] X -----5---9 800.000
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[D] 1227523892 nscd-0.33.c http://busybox.net/~vda/unscd/
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