[HDDS-6700] NPE with distcp on ofs with non-owner user

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 1.3.0
• Component/s: Ozone Datanode
• Assignee: Unassigned
• Reporter: Soumitra Sulav
• Created: 04/May/22 17:25
• Updated: 04/May/22 17:26

Description

DistCp fails with NPE with ofs scheme when a user doesn't have the privilege to read the volume.

[root@nightly-71x-eu-1 ~]# /opt/cloudera/parcels/CDH/bin/hadoop distcp  -i -pp -skipcrccheck /tmp/testDir ofs://ozone1/test/test/test
22/05/04 17:15:10 INFO tools.DistCp: Input Options: DistCpOptions{atomicCommit=false, syncFolder=false, deleteMissing=false, ignoreFailures=true, overwrite=false, append=false, useDiff=false, useRdiff=false, fromSnapshot=null, toSnapshot=null, skipCRC=true, blocking=true, numListstatusThreads=0, maxMaps=20, mapBandwidth=0.0, copyStrategy='uniformsize', preserveStatus=[PERMISSION], atomicWorkPath=null, logPath=null, sourceFileListing=null, sourcePaths=[/tmp/testDir], targetPath=ofs://ozone1/test/test/test, filtersFile='null', blocksPerChunk=0, copyBufferSize=8192, verboseLog=false, directWrite=false}, sourcePaths=[/tmp/testDir], targetPathExists=false, preserveRawXattrsfalse
22/05/04 17:15:11 INFO client.RMProxy: Connecting to ResourceManager at nightly-71x-eu-2.nightly-71x-eu.root.hwx.site/172.27.11.70:8032
22/05/04 17:15:12 ERROR tools.DistCp: Exception encountered
java.lang.NullPointerException
    at org.apache.hadoop.tools.SimpleCopyListing.validatePaths(SimpleCopyListing.java:134)
    at org.apache.hadoop.tools.CopyListing.buildListing(CopyListing.java:85)
    at org.apache.hadoop.tools.GlobbedCopyListing.doBuildListing(GlobbedCopyListing.java:89)
    at org.apache.hadoop.tools.CopyListing.buildListing(CopyListing.java:86)
    at org.apache.hadoop.tools.DistCp.createInputFileListing(DistCp.java:379)
    at org.apache.hadoop.tools.DistCp.prepareFileListing(DistCp.java:96)
    at org.apache.hadoop.tools.DistCp.createAndSubmitJob(DistCp.java:216)
    at org.apache.hadoop.tools.DistCp.execute(DistCp.java:193)
    at org.apache.hadoop.tools.DistCp.run(DistCp.java:155)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
    at org.apache.hadoop.tools.DistCp.main(DistCp.java:443) 

Even on adding acls for systest as all permissions same NPE was seen.
Works only when the volume owner was changed to the test user i.e. systest

# ozone sh volume update test --user=systest