[HDFS-15286] Concat on a same files deleting the file

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.0, 3.1.4, 3.2.2
• Target Version/s: 3.3.0
• Hadoop Flags: Reviewed
• Assignee: Hemanth Boyina
• Reporter: Hemanth Boyina
• Created: 19/Apr/20 11:32
• Updated: 27/Apr/20 21:40
• Resolved: 27/Apr/20 21:31

Description

on performing concat on same file as source and target , if the file is an inode reference

FSDirConcatOp#verifySrcFiles 
if (srcINode == targetINode) {
        throw new HadoopIllegalArgumentException("concat: the src file " + src
            + " is the same with the target file " + targetIIP.getPath());
  } 

verifysrcfiles validates if the same file is source and target , but if the file is an inoderefernce the if condition returns false

because the srcInode is a reference and targetINode is INodefile

Issue Links

• is related to: HDFS-15276 Concat on INodeRefernce fails with illegal state exception
• relates to: HDFS-15302 Backport HDFS-15286 to branch-2.x