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https://issues.apache.org/jira/browse/TAJO-41?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650367#comment-13650367
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Hyunsik Choi commented on TAJO-41:
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Hi Henry,
Thank you for your contribution. In order to make sure the fix, you need to
modify TestRowFile.java to use StorageManager.getScanner and
StorageManager.getAppender that internally employs the storage handler.
The current TestRowFile directly creates instances of RowFile.Scanner and
RowFile.Appender without using storage handler based on storage-default.xml.
> Storage handler name "row" in storage-default.xml must be "rowfile".
> --------------------------------------------------------------------
>
> Key: TAJO-41
> URL: https://issues.apache.org/jira/browse/TAJO-41
> Project: Tajo
> Issue Type: Bug
> Components: storage
> Reporter: Hyoseok Ryu
> Assignee: Henry Saputra
> Priority: Minor
> Labels: newbie
>
> The correct storage handler name for RowFile is 'rowfile'. However, 'row' is
> described in storage-default.xml. It's wrong default configuration and causes
> the following error:
> {noformat}
> 2013-04-20 17:08:08,549 ERROR master.QueryUnitAttempt
> (QueryUnitAttempt.java:transition(307)) - FROM ryuCom >>
> java.lang.NullPointerException
> at
> java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:909)
> at tajo.storage.StorageManager.getScanner(StorageManager.java:138)
> at tajo.engine.planner.physical.SeqScanExec.init(SeqScanExec.java:66)
> at
> tajo.engine.planner.physical.UnaryPhysicalExec.init(UnaryPhysicalExec.java:47)
> at
> tajo.engine.planner.physical.StoreTableExec.init(StoreTableExec.java:58)
> at tajo.worker.Task.run(Task.java:376)
> at tajo.worker.TaskRunner$1.run(TaskRunner.java:272)
> at java.lang.Thread.run(Thread.java:679)
> {noformat}
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