在我的例子中，我使用rowfilter在hbase中搜索某些行键。我想做模糊查询，所以我用scan和rowfilter代替get。然而，当我在hbase中存储了一千万个rowkeys时，扫描结果需要很长时间。那么如何提高rowfilter查询的性能呢？

try {

    for (String uid : uidsArr) {

        Scan scan = new Scan();
        Filter filter1 = new RowFilter(CompareFilter.CompareOp.EQUAL, new SubstringComparator(uid));
        scan.setFilter(filter1);
        scan.setMaxVersions(versions);

        ResultScanner scanner1 = table.getScanner(scan);
        Cell[] cells;
        for (Result res : scanner1) {
            cells = res.rawCells();
            list.addAll(getHBaseTableDataListFromCells(cells));

        }
    }

    return list;

} catch (Exception e) {
    e.printStackTrace();
}