[jira] [Created] (DRILL-7355) Reading a offset based vectors into holder may produce IndexOutOfBoundsException

["Oleg Zinoviev (Jira)" <ji...@apache.org>]

Oleg Zinoviev created DRILL-7355:
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             Summary: Reading a offset based vectors into holder may produce IndexOutOfBoundsException
                 Key: DRILL-7355
                 URL: https://issues.apache.org/jira/browse/DRILL-7355
             Project: Apache Drill
          Issue Type: Bug
    Affects Versions: 1.16.0
         Environment: Stack trace:

Caused by: java.lang.IndexOutOfBoundsException: index: 17, length: -799 (expected: range(0, 524288))
	at io.netty.buffer.AbstractByteBuf.checkIndex0(AbstractByteBuf.java:1125)
	at io.netty.buffer.AbstractByteBuf.checkIndex(AbstractByteBuf.java:1120)
	at io.netty.buffer.PooledUnsafeDirectByteBuf.nioBuffer(PooledUnsafeDirectByteBuf.java:244)
	at io.netty.buffer.WrappedByteBuf.nioBuffer(WrappedByteBuf.java:734)
	at io.netty.buffer.UnsafeDirectLittleEndian.nioBuffer(UnsafeDirectLittleEndian.java:34)
	at io.netty.buffer.DrillBuf.nioBuffer(DrillBuf.java:364)
	at org.apache.drill.exec.store.ParquetOutputRecordWriter$VarCharParquetConverter.writeField(ParquetOutputRecordWriter.java:1824)
	at org.apache.drill.exec.store.EventBasedRecordWriter.write(EventBasedRecordWriter.java:48)
	at org.apache.drill.exec.physical.impl.WriterRecordBatch.innerNext(WriterRecordBatch.java:111)
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:186)
	at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:104)
	at org.apache.drill.exec.physical.impl.SingleSenderCreator$SingleSenderRootExec.innerNext(SingleSenderCreator.java:93)
	at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:94)
	at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:296)
	at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:283)
            Reporter: Oleg Zinoviev


Var16Char, VarBinary, VarChar and VarDecimal vectors contain a UInt4 offset vector. When reading values into the corresponding holder, the values of their offset vectors are written into the "start" and "end" fields as ordinary integers. In the subsequent operations is not considered that originally this values were unsigned integers and (for example in the calculation of the buffer size at ParquetOutputRecordWriter) usual subtraction "end" - "start" used. This causes the target buffer size to be negative. 



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