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https://issues.apache.org/jira/browse/TAJO-666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13923914#comment-13923914
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Jihoon Son commented on TAJO-666:
---------------------------------
This error is caused by too long strings.
When a tuple is converted to a byte array in RowStoreEncoder, the ByteBuffer of
the fixed size is used.
However, since TEXT is a type of variable lengths, it's length is currently
assumed as 256 characters.
We should improve it.
> java.nio.BufferOverflowException occurs when the query includes an order by
> clause on a TEXT column
> ---------------------------------------------------------------------------------------------------
>
> Key: TAJO-666
> URL: https://issues.apache.org/jira/browse/TAJO-666
> Project: Tajo
> Issue Type: Bug
> Reporter: Jihoon Son
>
> See the title.
> The query and the error log of the query master are as follows.
> The 'method' column type is TEXT.
> {noformat}
> tajo> select method, sum(totaltime) from logs_20130404 group by method order
> by method;
> 2014-03-06 11:26:03,432 ERROR querymaster.QueryUnitAttempt
> (QueryUnitAttempt.java:transition(409)) - FROM xxx.xxx.xxx.xxx >>
> java.nio.BufferOverflowException
> at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:183)
> at java.nio.ByteBuffer.put(ByteBuffer.java:832)
> at
> org.apache.tajo.storage.RowStoreUtil$RowStoreEncoder.toBytes(RowStoreUtil.java:181)
> at
> org.apache.tajo.storage.index.bst.BSTIndex$BSTIndexWriter.writeHeader(BSTIndex.java:168)
> at
> org.apache.tajo.storage.index.bst.BSTIndex$BSTIndexWriter.close(BSTIndex.java:187)
> at org.apache.hadoop.io.IOUtils.cleanup(IOUtils.java:237)
> at
> org.apache.tajo.engine.planner.physical.RangeShuffleFileWriteExec.close(RangeShuffleFileWriteExec.java:123)
> at org.apache.tajo.worker.Task.run(Task.java:385)
> at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:395)
> at java.lang.Thread.run(Thread.java:744)
> {noformat}
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