Fields changed

description: We're not properly failing over to secondary DNS servers if the first server in the list is broken.

Steps to reproduce:

1. Set up a valid /etc/resolv.conf with a working primary DNS server
2. Add {{{nameserver 127.0.0.2}}} to the above the working DNS entries
3. Enable debug logs and restart SSSD

The debug log will contain
{{{
(Wed May 11 16:08:52 2011) [sssd[be[example.com]]] [fo_resolve_service_done] (1): Failed to resolve server 'ldap.example.com': Could not contact DNS servers
}}}
and SSSD will operate permanently in offline mode because it can never resolve the SRV records.

It's unclear right now whether the bug is in SSSD's async resolver or internal to the c-ares library. => We're not properly failing over to secondary DNS servers if the first server in the list is broken.

Steps to reproduce:

1. Set up a valid /etc/resolv.conf with a working primary DNS server
2. Add {{{nameserver 127.0.0.2}}} to the above the working DNS entries (simulates having an unreachable DNS server in the list)
3. Enable debug logs and restart SSSD

The debug log will contain
{{{
(Wed May 11 16:08:52 2011) [sssd[be[example.com]]] [fo_resolve_service_done] (1): Failed to resolve server 'ldap.example.com': Could not contact DNS servers
}}}
and SSSD will operate permanently in offline mode because it can never resolve the SRV records.

It's unclear right now whether the bug is in SSSD's async resolver or internal to the c-ares library.

Fields changed

patch: 0 => 1
status: new => assigned

Fixed by
- 4ebd399 (master)
- a5c7d86 (sssd-1-5)

resolution: => fixed
status: assigned => closed

Fields changed

rhbz: => 0

SSSD is moving from Pagure to Github. This means that new issues and pull requests
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This issue has been cloned to Github and is available here:
- https://github.com/SSSD/sssd/issues/1909

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Thank you for understanding. We apologize for all inconvenience.