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Java INodeDirectory.addSpaceConsumed方法代码示例

本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.INodeDirectory.addSpaceConsumed方法的典型用法代码示例。如果您正苦于以下问题:Java INodeDirectory.addSpaceConsumed方法的具体用法?Java INodeDirectory.addSpaceConsumed怎么用?Java INodeDirectory.addSpaceConsumed使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.apache.hadoop.hdfs.server.namenode.INodeDirectory的用法示例。


在下文中一共展示了INodeDirectory.addSpaceConsumed方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: removeSnapshot

import org.apache.hadoop.hdfs.server.namenode.INodeDirectory; //导入方法依赖的package包/类
/**
 * Remove the snapshot with the given name from {@link #snapshotsByNames},
 * and delete all the corresponding DirectoryDiff.
 *
 * @param snapshotRoot The directory where we take snapshots
 * @param snapshotName The name of the snapshot to be removed
 * @param collectedBlocks Used to collect information to update blocksMap
 * @return The removed snapshot. Null if no snapshot with the given name
 *         exists.
 */
public Snapshot removeSnapshot(BlockStoragePolicySuite bsps, INodeDirectory snapshotRoot,
    String snapshotName, BlocksMapUpdateInfo collectedBlocks,
    final List<INode> removedINodes) throws SnapshotException {
  final int i = searchSnapshot(DFSUtil.string2Bytes(snapshotName));
  if (i < 0) {
    throw new SnapshotException("Cannot delete snapshot " + snapshotName
        + " from path " + snapshotRoot.getFullPathName()
        + ": the snapshot does not exist.");
  } else {
    final Snapshot snapshot = snapshotsByNames.get(i);
    int prior = Snapshot.findLatestSnapshot(snapshotRoot, snapshot.getId());
    try {
      QuotaCounts counts = snapshotRoot.cleanSubtree(bsps, snapshot.getId(),
          prior, collectedBlocks, removedINodes);
      INodeDirectory parent = snapshotRoot.getParent();
      if (parent != null) {
        // there will not be any WithName node corresponding to the deleted
        // snapshot, thus only update the quota usage in the current tree
        parent.addSpaceConsumed(counts.negation(), true);
      }
    } catch(QuotaExceededException e) {
      INode.LOG.error("BUG: removeSnapshot increases namespace usage.", e);
    }
    // remove from snapshotsByNames after successfully cleaning the subtree
    snapshotsByNames.remove(i);
    return snapshot;
  }
}
 
开发者ID:naver,项目名称:hadoop,代码行数:39,代码来源:DirectorySnapshottableFeature.java


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