feature:install odl-integration-compatible-with-all takes a really long time

I tried the following

1. Cloned the latest integration code

2. git checkout stable/lithium

3. mvn install

4. Executed bin/karaf from distributions/karaf/target/assembly/

Executed the following commands,

The same steps followed in the integration-compatible-with-all tests in CSIT.

feature:repo-add mvn:org.apache.karaf.features/spring/3.0.3/xml/features
feature:repo-add mvn:org.opendaylight.integration/features-integration-index/0.3.0-SNAPSHOT/xml/features

feature:repo-add mvn:org.ops4j.pax.web/pax-web-features/3.1.4/xml/features

feature:repo-add mvn:org.apache.karaf.features/enterprise/3.0.3/xml/features
feature:repo-add mvn:org.opendaylight.integration/features-integration-test/0.3.0-SNAPSHOT/xml/features

feature:install odl-integration-compatible-with-all odl-vtn-manager-rest

a. The features failed to complete installing. The VTN Manager did not come up for a really long time,

This is the reason for the failure of the tests in https://jenkins.opendaylight.org/sandbox/job/vtn-csit-1node-cds-manager-all-stable-lithium/1/