While testing the mounting of a Docker host volume into a Hawkular container, encountered the following Error, when attempting to add a URL:

http://pastebin.test.redhat.com/318455

^[[31m15:33:57,805 ERROR [com.thinkaurelius.titan.graphdb.database.StandardTitanGraph] (default task-22) Could not commit transaction [14] due to exception: com.thinkaurelius.titan.diskstorage.locking.PermanentLockingException: Local lock contention
at com.thinkaurelius.titan.diskstorage.locking.AbstractLocker.writeLock(AbstractLocker.java:323)
at com.thinkaurelius.titan.diskstorage.locking.consistentkey.ExpectedValueCheckingStore.acquireLock(ExpectedValueCheckingStore.java:89)
at com.thinkaurelius.titan.diskstorage.keycolumnvalue.KCVSProxy.acquireLock(KCVSProxy.java:40)
at com.thinkaurelius.titan.diskstorage.BackendTransaction.acquireIndexLock(BackendTransaction.java:240)
at com.thinkaurelius.titan.graphdb.database.StandardTitanGraph.prepareCommit(StandardTitanGraph.java:506)
at com.thinkaurelius.titan.graphdb.database.StandardTitanGraph.commit(StandardTitanGraph.java:635)
at com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx.commit(StandardTitanTx.java:1337)
at com.thinkaurelius.titan.graphdb.blueprints.TitanBlueprintsGraph.commit(TitanBlueprintsGraph.java:60)
at org.hawkular.inventory.impl.tinkerpop.spi.GraphProvider.commit(GraphProvider.java:79)
at org.hawkular.inventory.impl.tinkerpop.InventoryContext.commit(InventoryContext.java:56)
at org.hawkular.inventory.impl.tinkerpop.TinkerpopBackend.commit(TinkerpopBackend.java:835)
at org.hawkular.inventory.base.Mutator.lambda$doCreate$35(Mutator.java:111)
at org.hawkular.inventory.base.Mutator$$Lambda$129/1879008728.run(Unknown Source)
at org.hawkular.inventory.base.spi.InventoryBackend$Transaction.execute(InventoryBackend.java:330)
at org.hawkular.inventory.base.Util.commitOrRetry(Util.java:94)
at org.hawkular.inventory.base.Util.runInTransaction(Util.java:76)
at org.hawkular.inventory.base.Traversal.mutating(Traversal.java:78)
at org.hawkular.inventory.base.Mutator.doCreate(Mutator.java:71)
at org.hawkular.inventory.base.BaseMetrics$ReadWrite.create(BaseMetrics.java:104)
at org.hawkular.inventory.base.BaseMetrics$ReadWrite.create(BaseMetrics.java:48)
at org.hawkular.inventory.rest.RestMetrics.createMetric(RestMetrics.java:125)
at org.hawkular.inventory.rest.RestMetrics.createMetric(RestMetrics.java:82)
at org.hawkular.inventory.rest.RestMetrics$Proxy$_$$_WeldClientProxy.createMetric(Unknown Source