[MAPREDUCE-1712] HAR sequence files throw errors in MR jobs

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.20.1
• Component/s: harchive
• Assignee: Mahadev Konar
• Reporter: Paul Yang
• Created: 17/Apr/10 00:50
• Updated: 02/Mar/11 22:56
• Resolved: 02/Mar/11 22:56

Description

When a HAR is specified as the input for a map reduce job and the file format is sequence file, an error similar to the following is thrown (this one is from Hive).

java.lang.IllegalArgumentException: Offset 0 is outside of file (0..-1)
        at org.apache.hadoop.mapred.FileInputFormat.getBlockIndex(FileInputFormat.java:299)
        at org.apache.hadoop.mapred.FileInputFormat.getSplitHosts(FileInputFormat.java:455)
        at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:260)
        at org.apache.hadoop.hive.ql.io.HiveInputFormat.getSplits(HiveInputFormat.java:261)
        at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:827)
        at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:798)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:747)
        at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:663)
        at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:107)
        at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:55)
        at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:631)
        at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:504)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:382)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:138)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:197)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:303)
        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.RunJar.main(RunJar.java:156)

This is caused by the dummy block location returned by HarFileSystem.getFileBlockLocations().

Issue Links

• relates to: MAPREDUCE-1752 Implement getFileBlockLocations in HarFilesystem