Elasticsearch scroll api search "from" Elasticsearch scroll api search "from" elasticsearch elasticsearch

Elasticsearch scroll api search "from"


In Java, it can be done as follows

QueryBuilder query = QueryBuilders.matchAllQuery();SearchResponse scrollResp = Constants.client.prepareSearch(index)        .setTypes(type).setSearchType(SearchType.SCAN)        .setScroll(new TimeValue(600000)).setQuery(query)        .setSize(500).execute().actionGet();while (true) {    scrollResp = Constants.client            .prepareSearchScroll(scrollResp.getScrollId())            .setScroll(new TimeValue(600000)).execute().actionGet();    System.out.println("Record count :"            + scrollResp.getHits().getHits().length);    total = total + scrollResp.getHits().getHits().length;    System.out.println("Total record count: " + total);    for (SearchHit hit : scrollResp.getHits()) {    //handle the hit    }    // Break condition: No hits are returned    if (scrollResp.getHits().getHits().length == 0) {        System.out.println("All records are fetched");        break;    }}

Hope it helps.