OpenIntObjectHashMap hsTierVertices = (OpenIntObjectHashMap) hs.getTiers().get(tierIndex);
IVertex vertex = (IVertex) hsTierVertices.get(vertexTierKey);
hsTierVertices.removeKey(vertexTierKey);
if (LOGGER.isDebugEnabled())
{
LOGGER.debug("Vertex {} removed from tier #{} of HSS({}): {}",
new Object[] { vertex.getTripletValue(), tierIndex + 1, i, verticesTripletsToString(hsTierVertices) });