[HADOOP-4697] KFS::getBlockLocations() fails with files having multiple blocks

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.18.0
• Fix Version/s: 0.19.1
• Component/s: fs

Environment

Hadoop on KFS

• Hadoop Flags: Reviewed
• Assignee: Sriram Rao
• Reporter: Lohit Vijaya Renu
• Created: 20/Nov/08 19:43
• Updated: 24/Feb/09 23:37
• Resolved: 25/Nov/08 10:33

Description

getBlockLocations() on KFS fail with the following stack trace for large files (with multiple blocks).

 java.lang.IllegalArgumentException: Offset 67108864 is outside of file
 (0..67108863)
        at
 org.apache.hadoop.mapred.FileInputFormat.getBlockIndex(FileInputFormat.java:336)
        at
 org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:248)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:742)
        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1026)
        at org.apache.hadoop.examples.WordCount.run(WordCount.java:149)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:155)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
 org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
        at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:141)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:54)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

blkStart was not updated properly.