[Discovery-Rel3.0-Centos-1]: All clients re-subscribe to a different publisher when a rule is added which was supposed to affect only 1 subscriber (No Auto load balance)

[Pulkit Tandon]

Bug Template : Centos

OS version: 3.10.0-229.el7.x86_64 #1 (Centos7.1)
Contrail Version: 3.0-1.el7.centos

Setup details:
Multinode setup.
Testbed file attached

Configurations:
Discovery server running and it does auto assignments of services to clients.

Description:

3 dns-servers are present in topology:
nodeh4: 77.77.1.10
nodeg12: 77.77.2.10
nodec10: 77.77.3.10

3 vrouter compute nodes are present in the topology:
nodeh8: 77.77.1.11
nodeg31: 77.77.2.11
nodec28: 77.77.3.11

Step 1: contrail-discovery.conf file was updated with min and max TTL values as “60” .For all default assignments, TTL 60 was working as expected.

Step 2: Please see the default assignment of services in attached file named
“Screen shot before rule.png”.

Step 3: Created Rule 1 as follows:
77.77.3.0/24,dns-server,, 77.77.3.11/32,contrail-vrouter-agent:0,,

As expected, as soon as this rule is created, "77.77.3.11/32,contrail-vrouter-agent:0,” started following the rule and subscribes from “77.77.3.11,dns-server"

Step 4: Noted the following:
Other subscribers "77.77.2.11/32,contrail-vrouter-agent:0” and "77.77.1.11/32,contrail-vrouter-agent:0” also loses their subscription from contrail-dns of nodeg12 (77.77.2.10) and resubscribe to nodec10 (77.77.3.10)

Please see attached screenshot "Screen Shot after rule.png” to understand what has happened.

Step 5: Tried deletion and addition of similar rules and changing the value of publisher in the rule.
Each time, all subscribers were getting affected.

There is definitely some link of one with all that trigger re-subscription.

Logs:
The issue is reproducible and self descriptive.
So no logs have been taken.

[Deepinder Setia (dsetia)]

Pulkit, what is the policy set for dns-server?

[Pulkit Tandon (pulkitt)]

The policy for dns-server was "fixed" . Default configurations were used for policy

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/19057
Submitter: Deepinder Setia (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/19057
Committed: http://github.org/Juniper/contrail-controller/commit/b16a7a804b5e6af449c8166b0db8f86449a1f2f7
Submitter: Zuul
Branch: master

commit b16a7a804b5e6af449c8166b0db8f86449a1f2f7
Author: Deepinder Setia <email address hidden>
Date: Mon Apr 4 15:53:12 2016 -0700

Add test cases. Fix python client library to take remote address
for test case.

Change-Id: Ic8bd88f95a3a68431d41f8d5722fb810e9020a0e
Fixes-Bug: #1549243
Fixes-Bug: #1548638

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/20926
Submitter: Deepinder Setia (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/20926
Committed: http://github.org/Juniper/contrail-controller/commit/461c550306e1c12d5188f4ef2c611ec2f7acfe3c
Submitter: Zuul
Branch: R3.0

commit 461c550306e1c12d5188f4ef2c611ec2f7acfe3c
Author: Deepinder Setia <email address hidden>
Date: Mon Apr 4 15:53:12 2016 -0700

Add test cases. Fix python client library to take remote address
for test case.

Change-Id: Ic8bd88f95a3a68431d41f8d5722fb810e9020a0e
Fixes-Bug: #1549243
Fixes-Bug: #1548638

[Pulkit Tandon (pulkitt)]

Working as expected.
tested on 3.0.2.0-50.

Hence closing the bug on R3.0 branch