}
System.err.printf("%,d nodes added in %s\n", numNodes, sw.stop());
Collections.shuffle(nodeIds);
sw.reset().start();
CoordinateSequence sequence = cache.get(nodeIds);
System.err.printf("requested %,d coordinates in %s\n", nodeIds.size(), sw.stop());
assertNotNull(sequence);
assertEquals(nodeIds.size(), sequence.size());
long approxDbSize = caclDbSize();