Bryan Lavelle_at_digital.com responds:
> How many users in the database? Do the users that get fast response have
> usernames that begin with letters early in the alphabet? And slow response,
> later in the alphabet? If so, it sounds like it maybe that you aren't
> running a hashed passwd and the system is reading each entry sequentially
> looking for your user. If that is not the case, I don't have any other
> ideas.
There are several thousand users in the NIS database. Most <userid> are
based on employee badge number: "m" followed by 6 digits being the
predominant entry. User A is of the form "m191xxx", is entry 11337 in the
passwd file and has 2 minute response. User B is "m191xxx", is entry 7
and has 3 minute response. User C is "m191xxx", is entry 13 and has
almost instant response. Thus the hash order does not seem to be involved
(I would assume that all 3 users would hash similarly) nor does sequence in
the passwd file (entry 7 is slow, entry 13 is fast).
Additionally -- remember that user A gets quick response from yppasswd if
he is logged onto another HP-UX system accessing the NIS servers.
--CHRis
-----Original Message-----
> Here's a challenge for you NIS gurus:
>
> We have our NIS database on HP-UX servers (1 master, 4 slaves).
> Users on HP systems have no problems with yppasswd.
>
> My DUNIX V4.0D systems -- 2 AS8200 TruCluster, 1 AlphaStaion 250) --
w
> which are configured to use the NIS database for passwd service exhibit a
> strange performance problem. Some users who try to change their passwords
> via yppasswd have to wait up to 5 minutes before the "Old password:"
> prompt appears. Other users will get the prompt almost immediately. The
> problem is specific to users and not to system/network load -- i.e. User A
> always has to wait, User B always gets good response...
>
> Other "yp" commands seem to function fine. In fact "ypmatch <userid> passwd"
> always returns the passwd info almost immediately for any userid.
>
> Any ideas why this would happen??? Any suggestions for correcting???
>
-
=============================================================================
Chris H. Ruhnke Phone: (314)233-7314
IBM Global Services M/S S306-6340 FAX : (314)234-2262
325 J.S. McDonnell Blvd Email: i769646_at_smrs013.stl.mo.boeing.com
Hazelwood, MO 63042
Received on Fri Nov 13 1998 - 15:50:18 NZDT