Great, thank you for the help Jakub and Pulkit! I appreciate it. --Erick
> On May 15, 2017, at 4:15 AM, Pulkit Tandon <[email protected]> wrote: > > Hi Erick, > > > A Vrouter agent connects only to 2 DNS servers at a time. > > Number of Control nodes doesn't matter. > > > The connections from vrouter to DNS works in a fixed policy. > > That means that at a time, all Vrouters in the cluster will be connected to > same set of DNS servers. > > That is why you see the DNS records in 2 control nodes and all DNS requests > going to only 2 DNS servers. > > > Also note that the records will not get synched to the unused control node > till the time 1 out of the 2 in use control nodes fail. > If any 1 fail, then you will see the vrouter getting connected to the 3rd > control node and it will eventually have all the records synched. > > Regards, > Pulkit >> >> From: Erick Cantwell <[email protected]> >> Subject: [Users] Contrail-DNS Help, No Records Being Received Via XMPP on >> One Control Node >> Date: May 11, 2017 at 9:50:30 AM GMT+5:30 >> To: [email protected] >> >> Hello everyone! >> >> Fairly new opencontrail user here. I have a question concerning >> contrail-dns that I'm hoping I can get some help with. >> >> We currently have 3 control nodes (we can call them control1, control2, and >> control3), but contrail-dns is only receiving xmpp updates on two of them >> (control1 and control2). We have all records configured as vdns. >> >> Looking at the output of >> http://control1:8092/Snh_SandeshTraceRequest?x=XmppMessageTrace there are a >> ton of messages that have been received. However, there are 0 results when >> looking at the same URL on control3. >> >> Additionally, if I look at the output of that same URL on a vrouter >> (http://vrouter1:8085/Snh_SandeshTraceRequest?x=XmppMessageTrace), I can see >> that it's only sending xmpp messages to control1 and control2. >> >> All of the zones are created in control3, there just aren't any actual >> records. >> >> I'm not sure what to make of this, since I don't have a working example that >> I can go and check. >> >> In the vrouter configuration, there are directives that say the maximum >> number of control nodes (or dns nodes) that will be used or discovered is 2. >> Is this limit of two control nodes causing this? I wasn't able to find any >> documentation saying that only two contrail-dns nodes can be updated. >> >> In addition to checking the suggested URLs (in a vdns debugging page), I've >> done all of the regular connectivity tests. The vrouter agent can connect >> to control3, and vice versa. >> >> If anybody has any ideas or can get me pointed in the right direction, I >> would greatly appreciate it. I don't know if this is expected behavior, or >> what I can check next. I didn't see anything in the logs while starting >> contrail-dns that would indicate a problem (at least not to me, at any rate). >> >> Contrail version is 3.0.2, running on Ubuntu 14.04.5 >> >> Thank you! >> >> --Erick >> >> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.opencontrail.org/mailman/listinfo/users_lists.opencontrail.org >
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