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類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();
}