private void writeProperties(StageGroup stageGroup) { DBObject q = reader.getGroupQuery(stageGroup.getName()); WriteResult result = stages.update(q, getGroupDBObject(stageGroup), true, false, concern); if (logger.isDebugEnabled()) { logger.debug("Wrote properties for group '{}', operation updated '{}' objects, got message '{}'", stageGroup.getName(), result.getN(), result); } }