On Mon, Apr 13, 2015 at 10:12:22PM +0200, Lukas Slebodnik wrote:
You can disable fast memory cache if environment variable SSS_NSS_USE_MEMCACHE is set to no. The environment variable need to be set on client side (the process which call getpw*/getgr*).
Yes thank you, we discovered that a moment after we posted the message ;-)
But I do not expect any problem with memory cache. The problem seems to be on responder side.
Why do you say that ? I mean can't the problem be on the backend side ? We suspect some kind of race condition because we can only (deterministically) reproduce the problem with slurm which spawns many processes in the same second.
BTW. There is a wiki page [1] which describes some sssd internals. At least diagrams might be useful for better understanding of work flow.
Thanks, we've seen and read that. Very good and interesting doc !