[TAJO-1070] BSTIndexScanExec should not seek a negative offset

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Physical Operator
• Assignee: Jinho Kim
• Reporter: Jinho Kim
• Created: 24/Sep/14 03:59
• Updated: 27/Sep/14 00:09
• Resolved: 26/Sep/14 02:10

Description

Recent hadoop filesystem apis defined strictly. So we should fix it correctly.
https://issues.apache.org/jira/browse/HADOOP-9361

It cause by unnecessary seek to -1

java.io.EOFException: Cannot seek to a negative offset
	at org.apache.hadoop.fs.FSInputChecker.seek(FSInputChecker.java:399)
	at org.apache.hadoop.fs.FSDataInputStream.seek(FSDataInputStream.java:62)
	at org.apache.hadoop.fs.ChecksumFileSystem$FSDataBoundedInputStream.seek(ChecksumFileSystem.java:325)
	at org.apache.tajo.storage.CSVFile$CSVScanner.seek(CSVFile.java:544)
	at org.apache.tajo.engine.planner.physical.BSTIndexScanExec.next(BSTIndexScanExec.java:119)
	at org.apache.tajo.engine.planner.physical.TestBSTIndexExec.testEqual(TestBSTIndexExec.java:184)

Issue Links

• blocks: TAJO-1060 Apply updated hadoop versions to README and BUILDING files