ElasticSearchManager esm = ElasticSearchManager.getIndex(sb.toString());
SearchRequestBuilder searchOptions = esm.getSearchOptions();
BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
boolQuery.must(QueryBuilders.rangeQuery(DocumentPojo.created_).from(cleanseStartTime));
boolQuery.must(QueryBuilders.termQuery(DocumentPojo.sourceKey_, sp.getKey() ));
searchOptions.setSize(200); // (note this is multiplied by the number of primary shards)
searchOptions.setSearchType(SearchType.SCAN);
searchOptions.setScroll("10m");
SearchResponse rsp = esm.doQuery(boolQuery, searchOptions);
String scrollId = rsp.getScrollId();