本文整理匯總了Java中org.apache.hadoop.hbase.HRegionInfo.getDaughterRegions方法的典型用法代碼示例。如果您正苦於以下問題：Java HRegionInfo.getDaughterRegions方法的具體用法？Java HRegionInfo.getDaughterRegions怎麽用？Java HRegionInfo.getDaughterRegions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.getDaughterRegions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: cleanParent
import org.apache.hadoop.hbase.HRegionInfo; //導入方法依賴的package包/類
/**
* If daughters no longer hold reference to the parents, delete the parent.
* @param parent HRegionInfo of split offlined parent
* @param rowContent Content of <code>parent</code> row in
* <code>metaRegionName</code>
* @return True if we removed <code>parent</code> from meta table and from
* the filesystem.
* @throws IOException
*/
boolean cleanParent(final HRegionInfo parent, Result rowContent)
throws IOException {
boolean result = false;
// Check whether it is a merged region and not clean reference
// No necessary to check MERGEB_QUALIFIER because these two qualifiers will
// be inserted/deleted together
if (rowContent.getValue(HConstants.CATALOG_FAMILY,
HConstants.MERGEA_QUALIFIER) != null) {
// wait cleaning merge region first
return result;
}
// Run checks on each daughter split.
PairOfSameType<HRegionInfo> daughters = HRegionInfo.getDaughterRegions(rowContent);
Pair<Boolean, Boolean> a = checkDaughterInFs(parent, daughters.getFirst());
Pair<Boolean, Boolean> b = checkDaughterInFs(parent, daughters.getSecond());
if (hasNoReferences(a) && hasNoReferences(b)) {
LOG.debug("Deleting region " + parent.getRegionNameAsString() +
" because daughter splits no longer hold references");
FileSystem fs = this.services.getMasterFileSystem().getFileSystem();
if (LOG.isTraceEnabled()) LOG.trace("Archiving parent region: " + parent);
HFileArchiver.archiveRegion(this.services.getConfiguration(), fs, parent);
MetaTableAccessor.deleteRegion(this.connection, parent);
result = true;
}
return result;
}