[HADOOP-9692] Improving log message when SequenceFile reader throws EOFException on zero-length file

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 2.1.0-beta, 2.0.5-alpha
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Labels: BB2015-05-TBR
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Zhe Zhang
• Reporter: Chu Tong
• Created: 03/Jul/13 05:23
• Updated: 12/May/16 18:26
• Resolved: 22/Oct/15 03:02

Description

sequencefile reader throws EOFException on zero-length file, stacktrace as shown:

Caused by: java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:180)
at java.io.DataInputStream.readFully(DataInputStream.java:152)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1845)
at org.apache.hadoop.io.SequenceFile$Reader.initialize(SequenceFile.java:1810)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1759)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1773)
at org.apache.hadoop.mapred.SequenceFileRecordReader.<init>(SequenceFileRecordReader.java:49)
at org.apache.hadoop.mapred.SequenceFileInputFormat.getRecordReader(SequenceFileInputFormat.java:64)
at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.<init>(CombineHiveRecordReader.java:65)
... 16 more