Race condition between SSSD & autofs on Ubuntu 14.04

[Ondrej Valousek]

Hi list,

I have spotted a strange issue with SSSD on Ubuntu 14.04 when using sssd to provide maps
for automounter. When I start the machine with completely clean SSSD cache (rm -rf
/var/lib/sssd/db/*, reboot), I can not login.
The only fix is to restart automounter & try again.

Funny thing is, that this procedure is only needed once - after all subsequent reboots it
works just fine.

I know there is a bug with SSSD not able to respond fast enough to the automounter when
enumeration is switched on. This is not my case (have enumeration disabled).

Is this something well known?
Thanks,

Ondrej

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[Jakub Hrozek]

On Thu, Jul 02, 2015 at 02:49:08PM +0000, Ondrej Valousek wrote:
>  Hi list,
>  
>  I have spotted a strange issue with SSSD on Ubuntu 14.04 when using sssd to provide maps
> for automounter. When I start the machine with completely clean SSSD cache (rm -rf
> /var/lib/sssd/db/*, reboot), I can not login. 
Is it because there is no /home mounted?

>  The only fix is to restart automounter & try again. 
Sounds like automounter starts before sssd does. 

>  
>  Funny thing is, that this procedure is only needed once - after all subsequent reboots it
> works just fine.
>  
>  I know there is a bug with SSSD not able to respond fast enough to the automounter when
> enumeration is switched on. This is not my case (have enumeration disabled).
>  
>  Is this something well known?
>  Thanks,
>  
>  Ondrej
>  
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>  The information contained in this e-mail and in any attachments is confidential and is
> designated solely for the attention of the intended recipient(s). If you are not an
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> direct any additional queries to: communications(a)s3group.com. Thank You. Silicon and
> Software Systems Limited (S3 Group). Registered in Ireland no. 378073. Registered Office:
> South County Business Park, Leopardstown, Dublin 18. 
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[Ondrej Valousek]

Is it because there is no /home mounted?

Yes, it is because home directory is not mounted.

>  The only fix is to restart automounter & try again.
>  
Sounds like automounter starts before sssd does

Well that's what I thought it could be - the thing is that it after all subsequent
reboots it just works fine - it is bit confusing to me.

Ondrej

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return e-mail and delete all copies of this e-mail from your computer system(s). Please
direct any additional queries to: communications(a)s3group.com. Thank You. Silicon and
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South County Business Park, Leopardstown, Dublin 18.