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Java HRegionInfo.getHRegionInfoAndServerName方法代碼示例

本文整理匯總了Java中org.apache.hadoop.hbase.HRegionInfo.getHRegionInfoAndServerName方法的典型用法代碼示例。如果您正苦於以下問題:Java HRegionInfo.getHRegionInfoAndServerName方法的具體用法?Java HRegionInfo.getHRegionInfoAndServerName怎麽用?Java HRegionInfo.getHRegionInfoAndServerName使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在org.apache.hadoop.hbase.HRegionInfo的用法示例。


在下文中一共展示了HRegionInfo.getHRegionInfoAndServerName方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: getTableRegionForRow

import org.apache.hadoop.hbase.HRegionInfo; //導入方法依賴的package包/類
/**
 * Return the region and current deployment for the region containing
 * the given row. If the region cannot be found, returns null. If it
 * is found, but not currently deployed, the second element of the pair
 * may be null.
 */
@VisibleForTesting // Used by TestMaster.
Pair<HRegionInfo, ServerName> getTableRegionForRow(
    final TableName tableName, final byte [] rowKey)
throws IOException {
  final AtomicReference<Pair<HRegionInfo, ServerName>> result =
    new AtomicReference<Pair<HRegionInfo, ServerName>>(null);

  MetaScannerVisitor visitor =
    new MetaScannerVisitorBase() {
      @Override
      public boolean processRow(Result data) throws IOException {
        if (data == null || data.size() <= 0) {
          return true;
        }
        Pair<HRegionInfo, ServerName> pair = HRegionInfo.getHRegionInfoAndServerName(data);
        if (pair == null) {
          return false;
        }
        if (!pair.getFirst().getTable().equals(tableName)) {
          return false;
        }
        result.set(pair);
        return true;
      }
  };

  MetaScanner.metaScan(clusterConnection, visitor, tableName, rowKey, 1);
  return result.get();
}
 
開發者ID:fengchen8086,項目名稱:ditb,代碼行數:36,代碼來源:HMaster.java


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