|Summary:||ASTERISK-20317: DNS long responce freeze chan_sip|
|Reporter:||Badalian Vyacheslav (slavon)||Labels:|
|Date Opened:||2012-08-24 05:09:51||Date Closed:||2012-08-24 08:21:26|
200 Voip phones. All host=dynamic. All use registration to connect to Asterisk. All connect by IP (not use DNS)
3 SIP peers. All host=NAME (use DNS). Asterisk use registration for this peers.
- DNS return errror after 10 sec timeout (NS server of peer zone is down.)
That's must be - Asterisk can't connect to peers. All voip phones work normal.
That's was - over 70% of voip phones are unreacheble, becouse chan_sip is deadlocked by waiting answer for peers.
Please fix. One broken peer may will down all system!
|Comments:||By: Matt Jordan (mjordan) 2012-08-24 08:21:26.342-0500|
Asterisk does not implement an asynchronous DNS resolver. A local DNS cache has been used in the past to work around this issue.
An asynchronous DNS resolver technically constitutes an improvement or a new feature, and as such, would require a patch to trunk.