HBase RowFilter 行键过滤效率如何提升？

Question

以下为我使用rowfilter过滤查询uid的代码。当数据量到达千万甚至亿级别的时候，查询效率非常低下。请问有什么解决办法？

        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();
        }

Answer 1

http://blog.chinaunix.net/uid-77311-id-4617954.html