SequenceFile.Reader reader = new SequenceFile.Reader(fs, path, conf);
long count = 0;
while (reader.next(key, value)) {
// Sum of weights in a Label
if (key.stringAt(0).equals(BayesConstants.LABEL_THETA_NORMALIZER)) {
datastore.setThetaNormalizer(key.stringAt(1), value.get());
count++;
if (count % 50000 == 0) {
log.info("Read {} theta norms", count);
}