I've noticed that OOM based installs of SDN-C has some OpenDaylight bundles fail to come up as active when ODL clustering is enabled.  Turning this on causes a different code path to be active in the startODL.sh script, which installs a couple additional ODL features.

 
bundle:list | grep -v Active
START LEVEL 100 , List Threshold: 50
ID | State | Lvl | Version | Name
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
31 | Resolved | 80 | 4.0.10 | Apache Karaf :: Diagnostic :: Boot
173 | Failure | 80 | 0.6.1 | ODL :: aaa :: aaa-cert
174 | Failure | 80 | 0.6.1 | ODL :: aaa :: aaa-encrypt-service
178 | Failure | 80 | 0.6.1 | org.opendaylight.aaa.aaa-shiro
189 | Resolved | 80 | 0.7.1 | config-persister-directory-xml-adapter, Hosts: 191
190 | Resolved | 80 | 0.7.1 | config-persister-file-xml-adapter, Hosts: 191
199 | Failure | 80 | 1.6.1 | org.opendaylight.controller.sal-binding-broker-impl
202 | Failure | 80 | 1.6.1 | org.opendaylight.controller.sal-broker-impl
204 | Failure | 80 | 1.6.1 | org.opendaylight.controller.sal-cluster-admin-impl
212 | Failure | 80 | 1.6.1 | org.opendaylight.controller.sal-distributed-datastore
216 | Failure | 80 | 1.6.1 | org.opendaylight.controller.sal-remoterpc-connector
219 | Failure | 80 | 1.6.1 | sample-toaster-consumer
220 | Failure | 80 | 1.6.1 | sample-toaster-provider
239 | Failure | 80 | 2.3.1 | mdsal-eos-binding-adapter
266 | Failure | 80 | 2.3.1 | mdsal-singleton-dom-impl
271 | Failure | 80 | 1.6.1 | MD SAL Restconf Connector
338 | Failure | 80 | 0.2.1.SNAPSHOT | ccsdk-sli-core :: sliapi :: sliapi-provider
355 | Failure | 80 | 0.2.1.SNAPSHOT | ccsdk-sli-northbound :: asdcApi :: asdcApi-provider
357 | Failure | 80 | 0.2.1.SNAPSHOT | ccsdk-sli-northbound :: dataChange :: dataChange-provider
363 | Failure | 80 | 1.3.1.SNAPSHOT | sdnc-northbound :: generic-resource-api :: generic-resource-api-provider