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From James Taylor <jamestay...@apache.org>
Subject Re: ORDER BY DESC cause query to hang
Date Wed, 13 Jan 2016 16:43:26 GMT
Hi Noam,
Please file a JIRA that includes the Phoenix version, the HBase version,
the DDL, query, and sample data (if needed to repro). It's possible you're
hitting an HBase bug in the reverse scan (HBASE-14155).
Thanks,
James

On Wed, Jan 13, 2016 at 4:22 AM, Bulvik, Noam <Noam.Bulvik@teoco.com> wrote:

> Hi,
>
>
>
> I am using the phoenix parcel for cloudera 5.4. Seems like there is a bug
> when query has Order by DESC the query hang for long time and after a while
> it fail with the following error . without DESC the order by works fine
>
>
>
>
>
> Caused by: org.apache.phoenix.exception.PhoenixIOException: Failed after
> attempts=35, exceptions:
>
> Wed Jan 13 09:22:09 IST 2016,
> org.apache.hadoop.hbase.client.RpcRetryingCaller@2935d8d3,
> java.io.IOException: java.io.IOException
>
>                 at
> org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2069)
>
>                 at
> org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
>
>                 at
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
>
>                 at
> org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
>
>                 at java.lang.Thread.run(Thread.java:745)
>
> Caused by: java.lang.StackOverflowError
>
>                 at
> org.apache.hadoop.hbase.util.Bytes$LexicographicalComparerHolder$UnsafeComparer.compareTo(Bytes.java:1295)
>
>                 at
> org.apache.hadoop.hbase.util.Bytes.compareTo(Bytes.java:1223)
>
>                 at
> org.apache.hadoop.hbase.CellComparator.compareRows(CellComparator.java:186)
>
>                 at
> org.apache.hadoop.hbase.CellComparator.compare(CellComparator.java:63)
>
>                 at
> org.apache.hadoop.hbase.KeyValue$KVComparator.compare(KeyValue.java:1968)
>
>                 at
> org.apache.hadoop.hbase.KeyValue$KVComparator.compare(KeyValue.java:1897)
>
>                 at
> org.apache.hadoop.hbase.util.Bytes.binarySearch(Bytes.java:1901)
>
>                 at
> org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.rootBlockContainingKey(HFileBlockIndex.java:426)
>
>                 at
> org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.loadDataBlockWithScanInfo(HFileBlockIndex.java:215)
>
>                 at
> org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.seekToDataBlock(HFileBlockIndex.java:182)
>
>                 at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekBefore(HFileReaderV2.java:642)
>
>                 at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekBefore(HFileReaderV2.java:637)
>
>                 at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekToPreviousRow(StoreFileScanner.java:425)
>
>                 at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekToPreviousRow(StoreFileScanner.java:449)
>
>
>
> this worked in previous phoenix version
>
>
>
> can you check
>
>
>
> regards,
>
> Noam
>
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