Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-2802 Support for RW/RO snapshots in HDFS
  3. HDFS-4781

File listing of .snapshot under a non-existing dir throws NullPointer

    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Snapshot (HDFS-2802)
    • Component/s: namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      $ hadoop dfs -ls /invalidDir/.snapshot
      ls: java.io.IOException: java.lang.NullPointerException

      INFO org.apache.hadoop.ipc.Server: IPC Server handler 2 on 8020, call getFileInfo(/invalidDir/.snapshot) from .* : error: java.io.IOException: java.lang.NullPointerException
      java.io.IOException: java.lang.NullPointerException
              at org.apache.hadoop.hdfs.server.namenode.FSDirectory.getFileInfo4DotSnapshot(FSDirectory.java:1208)
              at org.apache.hadoop.hdfs.server.namenode.FSDirectory.getFileInfo(FSDirectory.java:1189)
              at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFileInfo(FSNamesystem.java:2545)
              at org.apache.hadoop.hdfs.server.namenode.NameNode.getFileInfo(NameNode.java:949)
              at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
              at java.lang.reflect.Method.invoke(Method.java:597)
              at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:587)
              at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1405)
              at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1401)
              at java.security.AccessController.doPrivileged(Native Method)
              at javax.security.auth.Subject.doAs(Subject.java:396)
              at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1195)
              at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1399)
      

        Attachments

        1. h4781_20130430.patch
          4 kB
          Tsz Wo Nicholas Sze

          Activity

            People

            • Assignee:
              szetszwo Tsz Wo Nicholas Sze
              Reporter:
              rramya Ramya Sunil
            • Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: