This is the gerrit that is causing the regression.

https://git.opendaylight.org/gerrit/#/c/66304/

sunilkumarms can you please have a look at this regression, looks like it's sneaked in through the patch you pushed.

ecelgp can you let me know what is the exact issue you are observing. can you point me to the logs where i can see which groups are remaining in DS for which DPN.  Can you reproduce the problem in DEBUG mode on "org.opendaylight.openflowplugin.impl"

Hi Sunil, the issue is very easy to reproduce:

1) start mininet 1 switch:

sudo mn --controller 'remote,ip=192.168.0.1,port=6633' --topo linear,1 --switch ovsk,protocols=OpenFlow13

2) Add one group via REST:

PUT http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/group/1

<group xmlns="urn:opendaylight:flow:inventory">
<group-type>group-select</group-type>
<buckets>
<bucket>
<weight>1</weight>
<action>
<output-action>
<output-node-connector>1</output-node-connector>
</output-action>
<order>1</order>
</action>
<bucket-id>1</bucket-id>
</bucket>
<bucket>
<weight>1</weight>
<action>
<output-action>
<output-node-connector>2</output-node-connector>
</output-action>
<order>1</order>
</action>
<bucket-id>2</bucket-id>
</bucket>
</buckets>
<barrier>false</barrier>
<group-name>Foo</group-name>
<group-id>1</group-id>
</group>

3) Check the group is in operational:

GET http://127.0.0.1:8181/restconf/operational/opendaylight-inventory:nodes/node/openflow:1/group/1

4) Remove the group:

DELETE http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/group/1

5) Check group is still in operational:

GET http://127.0.0.1:8181/restconf/operational/opendaylight-inventory:nodes/node/openflow:1/group/1

ecelgp  Avishnoi analyzed the issue. Looks like if there is only one group installed on switch and if the same is being deleted, it will not be removed from OperDS also that on deleting the lone group, statistics will be empty and empty data will not be written to operDS. both ways group remains in operDS. 

What's the next action we need to take here? Do we need any code fix?  Thanks!

klou we have a fix for it https://git.opendaylight.org/gerrit/#/c/68130/ but test are failing 

Running org.opendaylight.odlparent.featuretest.SingleFeatureTest Tests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1,051.615 sec <<< FAILURE! - in org.opendaylight.odlparent.featuretest.SingleFeatureTest installFeature(org.opendaylight.odlparent.featuretest.SingleFeatureTest)[repoUrl: file:/w/workspace/openflowplugin-distribution-check-carbon/distribution/features3-test/target/classes/features.xml, Feature: odl-integration-compatible-with-all 0.6.3-SNAPSHOT] Time elapsed: 630.301 sec <<< ERROR! java.lang.ClassNotFoundException: org.junit.runners.model.TestTimedOutException (no security manager: RMI class loader disabled) at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:396) at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:186)

We need this patch: https://git.opendaylight.org/gerrit/#/c/68226 for the verify job to pass.

We also need ovsdb succesful merge job: https://jenkins.opendaylight.org/releng/view/Merge-Jobs/job/ovsdb-merge-carbon/

sunilkumarms - Can you re-run your test for the fix? I believe the 2 items Luis mentioned are in place.  Thanks!

Can we close this issue out as SR3 was already released?