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When requesting a DNS lookup on a hostname that matches to 60 IP addresses, we receive a UDP response with the TRUNCATED flag set.
When this happens, c-ares (by default) switches to using TCP to perform the lookup. Our c-ares integration in the SSSD cannot handle this properly right now.
I am proposing a short-term solution to set the ARES_FLAG_IGNTC flag for ares_init_options(). This tells c-ares to just use the truncated list it received from UDP, rather than switching to TCP.
This bug is meant to track the longer-term solution of properly handling the TCP lookups.
Fields changed
milestone: NEEDS_TRIAGE => SSSD 1.1
Steps to reproduce this are the same as Ticket #384, except that after fixing the segfault, we were instead getting timeouts.
fixedin: => 1.0.3 resolution: => fixed status: new => closed
tests: 1 => 0 testsupdated: 0 => 1
rhbz: => 0
Metadata Update from @sgallagh: - Issue assigned to sgallagh - Issue set to the milestone: SSSD 1.1
SSSD is moving from Pagure to Github. This means that new issues and pull requests will be accepted only in SSSD's github repository.
This issue has been cloned to Github and is available here: - https://github.com/SSSD/sssd/issues/1430
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