如何通过行键从 Bigtable 中获取所有值？

Question

我无法通过行键从 BigTable 获取所有值，

我的table是这样的，我只能得到3个，同一个column family同一个qualifier只会得到一个，比如hashes:md5只会得到"emialmd5test"

xy001uuuyyyy
  hashes:md5                               @ 2019/06/17-16:57:10.173000
    "emialmd5test"
  hashes:md5                               @ 2019/06/17-10:58:39.711000
    "emialmd5"
  hashes:sha1                              @ 2019/06/17-16:57:10.173000
    "emailsha1test"
  hashes:sha1                              @ 2019/06/17-10:58:39.711000
    "emailsha1"
  hashes:sha256                            @ 2019/06/17-16:57:10.172000
    "emailsha256test"
  hashes:sha256                            @ 2019/06/17-10:58:39.711000
    "emailsha256"

这是我的代码

Connection connection = BigtableConfiguration.connect(WholeSaleHelper.WHOOLE_SALE_CONFIG.toHBaseConfig());
    Scan scan = new Scan()
        .setRowPrefixFilter(cookieAndPel.getValue().getBytes());

    Table table = connection.getTable(TableName.valueOf(WholeSaleHelper.WHOOLE_SALE_CONFIG.getTableId()));
    byte[] md5Bytes = null, sha1Bytes = null, sha256Bytes = null;

    for (Result result : table.getScanner(scan)) {

      md5Bytes = result.getValue(WholeSaleHelper.WHOLE_SALE_COLUMN_FAMILY.getBytes(), WholeSaleHelper.WHOLE_SALE_MD5.getBytes());
      sha1Bytes = result.getValue(WholeSaleHelper.WHOLE_SALE_COLUMN_FAMILY.getBytes(), WholeSaleHelper.WHOLE_SALE_SHA1.getBytes());
      sha256Bytes = result.getValue(WholeSaleHelper.WHOLE_SALE_COLUMN_FAMILY.getBytes(), WholeSaleHelper.WHOLE_SALE_SHA256.getBytes());
    }

或者我可以使用其他方式获取值吗？只需按 roe 键搜索即可获取所有值。不关心列族和限定符

Answer 1

您可以将此添加到您的扫描中以获取所有版本：scan.setMaxVersions();

如何通过行键从 Bigtable 中获取所有值？

How to get all values from Bigtable by row key?

java

hbase

bigtable

google-cloud-platform

google-cloud-bigtable