SSSD / sssd

#685 asynchronously resolve DNS names and enhance online/offline detection
Closed: Invalid Opened by simo.

Closed: Invalid
Reopen Issue

Right now, when offline, we wait until we have a client request to try to do a DNS request to resolve servers. In some situation this may lead to wait for a DNS timeout.

DNS resolution could be decoupled from connections and done more frequently when offline increasing online detection chances while also decreasing waits when DNS requests timeouts. When offline requests could be done frequently, while in the online case they would be done only when the DNS entry ttl expires.

Fields changed

coverity: =>
milestone: SSSD 1.6.0 => NEEDS_TRIAGE
upgrade: => 0

Fields changed

owner: somebody => sgallagh

The assertion in the original ticket description is incorrect. We do not wait for DNS resolution until client requests come in. We always attempt to resolve all servers when either the system routing table changes (as reported by netlink) or when the /etc/resolv.conf has been modified.

In either case, this will happen for any significant change in network connectivity, and is NOT deferred until a client request is made. So we feel that there is no significant advantage to polling DNS regularly.

resolution: => wontfix
status: new => closed

Fields changed

milestone: NEEDS_TRIAGE => void

Metadata Update from @simo:
- Issue assigned to sgallagh
- Issue set to the milestone: void

Metadata Update from @jhrozek:
- Custom field rhbz adjusted to 0

Metadata Update from @jhrozek:
- Custom field rhbz adjusted to 0

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/1727

If you want to receive further updates on the issue, please navigate to the github issue
and click on subscribe button.

Thank you for understanding. We apologize for all inconvenience.
Metadata
None
None
None
High
enhancement
SSSD
1.4.1
0
None
0
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