[HDFS-15276] Concat on INodeRefernce fails with illegal state exception

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.3.0, 3.1.4, 3.2.2, 2.10.1, 3.4.0
• Fix Version/s: 3.3.0, 3.1.4, 3.2.2, 2.10.1, 3.4.0
• Component/s: namanode
• Target Version/s: 3.3.0, 3.1.4, 3.2.2, 2.10.1, 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Hemanth Boyina
• Reporter: Hemanth Boyina
• Created: 13/Apr/20 16:17
• Updated: 11/Feb/24 11:07
• Resolved: 22/Apr/20 23:31

Description

Performing concat operation on INodeRefernce throwing illegal state exception

On verifySrcFiles , the src inode was getting converted to Inodefile 

final INode srcINode = iip.getLastINode();
final INodeFile srcINodeFile = INodeFile.valueOf(srcINode, src);

If this INode is an INodeRefernce , it fails at Preconditions.checkstate as the child is an refernce but we have converted that as file

INodeDirectory#removeChild
  final INode removed = children.remove(i);
  Preconditions.checkState(removed == child); 

Issue Links

• is caused by: HDFS-13101 Yet another fsimage corruption related to snapshot
• relates to: HDFS-15286 Concat on a same files deleting the file