[18536] in Athena Bugs
Re: sgi 8.4.17: getpwuid
daemon@ATHENA.MIT.EDU (Robert A Basch)
Wed Nov 22 19:43:57 2000
Date: Wed, 22 Nov 2000 19:43:54 -0500 (EST)
Message-Id: <200011230043.TAA100230@aupair.mit.edu>
From: Robert A Basch <rbasch@MIT.EDU>
To: Nickolai Zeldovich <kolya@mit.edu>
CC: bugs@mit.edu
In-reply-to: "[18534] in Athena Bugs"
Thanks for your bug report.
You are correct; there seems to be an intentional 100ms sleep in a
lookup failure. (The same sleep occurs for other nsd lookups that
fail). nsd apparently returns the EIO error specifically for that
purpose, as a (poor) way to help deal with timing problems.
I will report this to SGI, but I would not be optimistic about them
fixing it. The standard nsd configuration includes negative caching,
so that the sleep would only occur on the first getpwuid() for a
particular uid; we must disable this and all other nsd caching,
however, in order for the Athena login system to work.
Bob
