本文整理匯總了Java中org.apache.hadoop.hbase.HRegionInfo.getServerName方法的典型用法代碼示例。如果您正苦於以下問題：Java HRegionInfo.getServerName方法的具體用法？Java HRegionInfo.getServerName怎麽用？Java HRegionInfo.getServerName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.getServerName方法的2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: getRegionInfo
import org.apache.hadoop.hbase.HRegionInfo; //導入方法依賴的package包/類
@Override
public TRegionInfo getRegionInfo(ByteBuffer searchRow) throws IOError {
try {
byte[] row = getBytes(searchRow);
Result startRowResult =
getRowOrBefore(TableName.META_TABLE_NAME.getName(), row, HConstants.CATALOG_FAMILY);
if (startRowResult == null) {
throw new IOException("Cannot find row in "+ TableName.META_TABLE_NAME+", row="
+ Bytes.toStringBinary(row));
}
// find region start and end keys
HRegionInfo regionInfo = HRegionInfo.getHRegionInfo(startRowResult);
if (regionInfo == null) {
throw new IOException("HRegionInfo REGIONINFO was null or " +
" empty in Meta for row="
+ Bytes.toStringBinary(row));
}
TRegionInfo region = new TRegionInfo();
region.setStartKey(regionInfo.getStartKey());
region.setEndKey(regionInfo.getEndKey());
region.id = regionInfo.getRegionId();
region.setName(regionInfo.getRegionName());
region.version = regionInfo.getVersion();
// find region assignment to server
ServerName serverName = HRegionInfo.getServerName(startRowResult);
if (serverName != null) {
region.setServerName(Bytes.toBytes(serverName.getHostname()));
region.port = serverName.getPort();
}
return region;
} catch (IOException e) {
LOG.warn(e.getMessage(), e);
throw new IOError(Throwables.getStackTraceAsString(e));
}
}
示例2: isTableAvailable
import org.apache.hadoop.hbase.HRegionInfo; //導入方法依賴的package包/類
@Override
public boolean isTableAvailable(final TableName tableName) throws IOException {
final AtomicBoolean available = new AtomicBoolean(true);
final AtomicInteger regionCount = new AtomicInteger(0);
MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
@Override
public boolean processRow(Result row) throws IOException {
HRegionInfo info = MetaScanner.getHRegionInfo(row);
if (info != null && !info.isSplitParent()) {
if (tableName.equals(info.getTable())) {
ServerName server = HRegionInfo.getServerName(row);
if (server == null) {
available.set(false);
return false;
}
regionCount.incrementAndGet();
} else if (tableName.compareTo(info.getTable()) < 0) {
// Return if we are done with the current table
return false;
}
}
return true;
}
};
MetaScanner.metaScan(this, visitor, tableName);
return available.get() && (regionCount.get() > 0);
}