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From "Manoj Govindassamy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12201) INode#getSnapshotINode() should get INodeAttributes from INodeAttributesProvider for the current INode
Date Wed, 26 Jul 2017 19:05:00 GMT
Manoj Govindassamy created HDFS-12201:
-----------------------------------------

             Summary: INode#getSnapshotINode() should get INodeAttributes from INodeAttributesProvider
for the current INode
                 Key: HDFS-12201
                 URL: https://issues.apache.org/jira/browse/HDFS-12201
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: snapshots
    Affects Versions: 2.8.0
            Reporter: Manoj Govindassamy
            Assignee: Manoj Govindassamy


{{INodeFile}}
{noformat}
  @Override
  public INodeFileAttributes getSnapshotINode(final int snapshotId) {
    FileWithSnapshotFeature sf = this.getFileWithSnapshotFeature();
    if (sf != null) {
      return sf.getDiffs().getSnapshotINode(snapshotId, this);
    } else {
      return this;
    }
  }
{noformat}

{{AbstractINodeDiffList#getSnapshotINode}}
{noformat}
  public A getSnapshotINode(final int snapshotId, final A currentINode) {
    final D diff = getDiffById(snapshotId);
    final A inode = diff == null? null: diff.getSnapshotINode();
    return inode == null? currentINode: inode;
  }
{noformat}

INodeFile, INodeDirectory #getSnapshotINode() returns the current INode's local INodeAttributes
if there is anything available for the given snapshot id. When there is an INodeAttributesProvider
configured, attributes are retrieved from this external provider instead of the local. But,
getSnapshotINode always returns the local attributes without retrieving them from attributes
provider. 






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