[HDFS-50] NullPointerException when reading deleted file

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Assignee: Unassigned
• Reporter: Koji Noguchi
• Created: 08/Mar/08 02:17
• Updated: 25/Sep/09 22:23
• Resolved: 25/Sep/09 22:23

Description

hdfs://AAA:9999/distcp/destdir/Trash/0803050600/data/part-00018
: java.lang.NullPointerException
at org.apache.hadoop.dfs.DFSClient$DFSInputStream.getBlockAt(DFSClient.java:919)
at org.apache.hadoop.dfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:992)
at org.apache.hadoop.dfs.DFSClient$DFSInputStream.read(DFSClient.java:1112)
at java.io.DataInputStream.read(DataInputStream.java:83)
at org.apache.hadoop.util.CopyFiles$FSCopyFilesMapper.copy(CopyFiles.java:303)
at org.apache.hadoop.util.CopyFiles$FSCopyFilesMapper.map(CopyFiles.java:364)
at org.apache.hadoop.util.CopyFiles$FSCopyFilesMapper.map(CopyFiles.java:219)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:192)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1804)

(Line number for CopyFiles.java is a little off since I'm using my modified version)

Issue Links

• relates to: HDFS-656 Clarify error handling and retry semantics for DFS read path