[SSSD] slow logins via ssh

John Hodrien J.H.Hodrien at leeds.ac.uk
Fri Sep 23 12:23:03 UTC 2011


On Fri, 23 Sep 2011, Stephen Gallagher wrote:

> This isn't enough information to say where the latency is occurring. Is
> the 30s passing while it's still iterating through "Looking up parent
> groups for group", or are you seeing it happen while the SSSD is saving
> the results to the cache? I'm guessing that the problem is likely
> happening during the latter. We're doing a lot of work right now for
> 1.6.2 with improving the cache performance, but I'd like to try and
> track this down to make sure our current enhancement plans will aid you.

This was definitely one of the cases with 1.6.1 that I found was cache
performance limited (as you suggest).  In my case symlinking cache_default.ldb
to /dev/shm made this clear by entirely resolving the performance issue
(reducing a near 60 second op to around 3).

jh



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