Private nsswitch or nscd per process

Question

I want a short term fix for some NIS performance problems on my network.

I don't have root access, and nscd has all caching turned off.

I'd like to provide local nscd-like capability to allow getpwuid to cache its results, avoiding many expensive NIS lookups (sometimes 5-10 seconds each)

context:

R calls getpwuid lots during package loading.

score 1 · Accepted Answer · answered Mar 06 '13 at 08:30

1

I don't know of an easy or elegant way to do this. One option would be to implement your own getpwuid function and provide it to R using LD_PRELOAD, but you'll probably be better off just getting someone to fix NIS.

answered Mar 06 '13 at 08:30

Charley

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since I posted I actually did what you suggest, but it's not a full solution - I'll wait and see what comes and accept your answer if nothing else. – Alex Brown Mar 06 '13 at 19:11
I would love to know if there's some way to do a per-process or other fine grained nsswitch configuration, but I've never seen it. – Charley Mar 07 '13 at 06:08
I'm sticking with your solution. – Alex Brown Mar 20 '13 at 05:33

Private nsswitch or nscd per process

1 Answers1