[HDFS-8111] NPE thrown when invalid FSImage filename given for "hdfs oiv_legacy" cmd

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: tools
• Hadoop Flags: Reviewed
• Assignee: Surendra Singh Lilhore
• Reporter: Archana T
• Created: 09/Apr/15 08:41
• Updated: 30/Aug/16 01:36
• Resolved: 13/Apr/15 11:50

Description

NPE thrown when invalid filename is given as argument for "hdfs oiv_legacy" command

./hdfs oiv_legacy -i /home/hadoop/hadoop/hadoop-3.0.0/dfs/name/current/fsimage_00000000000000042 -o fsimage.txt 
Exception in thread "main" java.lang.NullPointerException
        at org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewer.go(OfflineImageViewer.java:140)
        at org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewer.main(OfflineImageViewer.java:260)