The following are the responses I received to my query about sites
using yp passwd files larger than 10000 entries. The response from
Stergios at Stanford matches our experiences.
We are currently testing an 18000 entry yp passwd file. The results
seem to suggest that ypxfrs are an incredibly long, 4-5 minutes per secondary.
Thus yppasswd updates load down your server and may result in
inconsistent secondaries.
Also you don't want to finger a client without the -e option. Any
program like finger which reads through the entire passwd file entry
at a time will take forever.
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Date: Wed, 29 May 91 10:25:19 PDT
From: tonytran@leland.stanford.edu
Message-Id: <9105291725.AA12409@sunscreen.stanford.edu>
To: ronr@midway.uchicago.edu
Subject: re: Large NIS passwd files
Cc: tonytran@leland.stanford.edu
>Is anyone sucessfully running with large (> 10000 entry) NIS passwd files?
Talk to Paul Traina < Paul_Traina@ir.stanford.edu> who is the postmaster
at Stanford Univ. The last time I look at the yppasswd file, it was
pretty close to 10000 entries.
I checked with SUN, and in spite of the fact that they have around
20,000 employees (both permanent + temps), they have several NIS domains,
each has less than 1000 entries
Tony
Date: Wed, 29 May 91 12:19:58 BST
From: Alastair Young <alastair@eucad.co.uk>
Message-Id: <9105291119.AA22600@eucad.co.uk>
To: ronr@midway.uchicago.edu
Subject: Re: Large NIS passwd files
Ours is about 2000 lines. Works ok.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Alastair Young Systems Supervisor (SMTS) _ Trollstigen
European CAD Developments Limited aka EuCAD )/___ ___ or bust
EuCAD/Cadence mail: alastair +44-31-225-3434 __/(___)##| | ARIEL NH
Full Email Address: alastair@eucad.co.uk / /\\|| \ / \__| NVA927
9 Wemyss Place, Edinburgh, Scotland EH3 6DH \__/ ---- \__/~~~~~ 1991
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Date: Tue, 28 May 91 14:00:23 EDT
From: Kennedy Lemke <Kennedy_J_Lemke@princeton.edu>
Message-Id: <9105281800.AA03654@narnia.princeton.edu>
To: ronr@midway.uchicago.edu
Subject: Re: Large NIS passwd files
Please summarize. I'm currently doing around 4K entries, but am
considering going to around 10K.
Kennedy Lemke
Systems Programmer
CIT--87 Prospect
Princeton University
Princeton, New Jersey 08544
Work Phone: (609) 258-6033 Internet: lemke@Princeton.EDU
Fax Phone: (609) 258-3943 uucp: ...rutgers!princeton!lemke
Home Phone: (609) 275-7298 Bitnet: LEMKE@PUCC.BITNET
Date: Tue, 28 May 91 11:23:56 PDT
From: stergios@stanford.edu (Stergios)
Message-Id: <9105281823.AA03459@kt22.Stanford.EDU>
To: Ron Rusnak <ronr@midway.uchicago.edu>
Subject: Re: Large NIS passwd files
References: <CMM.0.90.0.675441139.ronr@teddybear.uchicago.edu>
Reply-To: stergios@kt22.stanford.edu
close. we got 9600 entries. its very problematic with chfn, and
passwd; with that many users the master tends to be always crunching
up new dbm files. transfers to slaves don't always go so well and
the maps get screwed as a result, you find this out when users lose
acceess to clients who are only looking at the bad slave. with
multiple vendors (we have sun, next, dec, ibm) you'll find out some
vendor's machine will only litsen (as a client) to a like machine (for
a server) and vice versa.
but it does work. we're looking into switching over to the athena
software.
sm
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