[HDDS-8857] [snapshot] UnsupportedOperationException for snapshot distcp operation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: Ozone Manager
• Labels: ozone-snapshot pull-request-available
• Assignee: Sadanand Shenoy
• Reporter: Jyotirmoy Sinha
• Created: 15/Jun/23 10:35
• Updated: 16/Jun/23 05:27
• Resolved: 16/Jun/23 05:27

Description

UnsupportedOperationException for snapshot distcp operation

Exception stacktrace -

[root@jssnap-1 ~]# sudo -u hdfs hadoop distcp  -update -diff snap1 snap2 ofs://ozone1/vol1/buck1 ofs://ozone1/voldest1/buckdest1
23/06/15 10:29:20 INFO tools.DistCp: Input Options: DistCpOptions{atomicCommit=false, syncFolder=true, deleteMissing=false, ignoreFailures=false, overwrite=false, append=false, useDiff=true, useRdiff=false, fromSnapshot=snap1, toSnapshot=snap2, skipCRC=false, blocking=true, numListstatusThreads=0, maxMaps=20, mapBandwidth=0.0, copyStrategy='uniformsize', preserveStatus=[], atomicWorkPath=null, logPath=null, sourceFileListing=null, sourcePaths=[ofs://ozone1/vol1/buck1], targetPath=ofs://ozone1/voldest1/buckdest1, filtersFile='null', blocksPerChunk=0, copyBufferSize=8192, verboseLog=false, directWrite=false, useiterator=false}, sourcePaths=[ofs://ozone1/vol1/buck1], targetPathExists=true, preserveRawXattrsfalse
23/06/15 10:29:21 INFO client.RMProxy: Connecting to ResourceManager at jssnap-2.jssnap.root.hwx.site/172.27.29.84:8032
23/06/15 10:29:21 ERROR tools.DistCp: Exception encountered
java.lang.UnsupportedOperationException: The source file system ofs does not support snapshot.
    at org.apache.hadoop.tools.DistCpSync.checkFilesystemSupport(DistCpSync.java:164)
    at org.apache.hadoop.tools.DistCpSync.preSyncCheck(DistCpSync.java:110)
    at org.apache.hadoop.tools.DistCpSync.sync(DistCpSync.java:193)
    at org.apache.hadoop.tools.DistCp.prepareFileListing(DistCp.java:88)
    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:81)
    at org.apache.hadoop.tools.DistCp.main(DistCp.java:445) 

Issue Links

• links to: GitHub Pull Request #4907