Manoj Govindassamy created HDFS-12194:
-----------------------------------------
Summary: File and Directory metadataEquals does incorrect
comparisons for Features
Key: HDFS-12194
URL: https://issues.apache.org/jira/browse/HDFS-12194
Project: Hadoop HDFS
Issue Type: Bug
Components: snapshots
Affects Versions: 2.8.0
Reporter: Manoj Govindassamy
Assignee: Manoj Govindassamy
Looks like the metadata comparisons for Files and Directories are doing object
reference equality instead of the equals() check. So, a file with the ACL set
exactly same as the old one will still flag as changed.
INodeFile and SnapshotCopy #metadataEquals()
{noformat}
@Override
public boolean metadataEquals(INodeFileAttributes other) {
return other != null
&& getHeaderLong()== other.getHeaderLong()
&& getPermissionLong() == other.getPermissionLong()
&& getAclFeature() == other.getAclFeature()
&& getXAttrFeature() == other.getXAttrFeature();
}
{noformat}
INodeDirectory, SnapshotCopy #metadataEquals()
{noformat}
@Override
public boolean metadataEquals(INodeDirectoryAttributes other) {
return other != null
&& getQuotaCounts().equals(other.getQuotaCounts())
&& getPermissionLong() == other.getPermissionLong()
&& getAclFeature() == other.getAclFeature()
&& getXAttrFeature() == other.getXAttrFeature();
}
{noformat}
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