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https://issues.apache.org/jira/browse/PHOENIX-4658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16431664#comment-16431664
 ] 

Toshihiro Suzuki commented on PHOENIX-4658:
-------------------------------------------

Ping [~jamestaylor] [~an...@apache.org]. Could you please review the patch?

> IllegalStateException: requestSeek cannot be called on ReversedKeyValueHeap
> ---------------------------------------------------------------------------
>
>                 Key: PHOENIX-4658
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4658
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Toshihiro Suzuki
>            Assignee: Toshihiro Suzuki
>            Priority: Major
>             Fix For: 4.14.0
>
>         Attachments: PHOENIX-4658-v2.patch, PHOENIX-4658.patch, 
> PHOENIX-4658.patch, PHOENIX-4658.patch
>
>
> Steps to reproduce are as follows:
> 1. Create a table with multiple column families (default column family and 
> "FAM")
> {code}
> CREATE TABLE TBL (
>   COL1 VARCHAR NOT NULL,
>   COL2 VARCHAR NOT NULL,
>   COL3 VARCHAR,
>   FAM.COL4 VARCHAR,
>   CONSTRAINT TRADE_EVENT_PK PRIMARY KEY (COL1, COL2)
> )
> {code}
> 2. Upsert a row
> {code}
> UPSERT INTO TBL (COL1, COL2) values ('AAA', 'BBB')
> {code}
> 3. Query with DESC for the table
> {code}
> SELECT * FROM TBL WHERE COL2 = 'BBB' ORDER BY COL1 DESC
> {code}
> By following the above steps, we face the following exception.
> {code}
> java.util.concurrent.ExecutionException: 
> org.apache.phoenix.exception.PhoenixIOException: 
> org.apache.hadoop.hbase.DoNotRetryIOException: 
> TBL,,1521251842845.153781990c0fb4bc34e3f2c721a6f415.: requestSeek cannot be 
> called on ReversedKeyValueHeap
>       at 
> org.apache.phoenix.util.ServerUtil.createIOException(ServerUtil.java:96)
>       at 
> org.apache.phoenix.util.ServerUtil.throwIOException(ServerUtil.java:62)
>       at 
> org.apache.phoenix.iterate.RegionScannerFactory$1.nextRaw(RegionScannerFactory.java:212)
>       at 
> org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:82)
>       at 
> org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:82)
>       at 
> org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:294)
>       at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2808)
>       at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:3045)
>       at 
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:36613)
>       at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2352)
>       at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124)
>       at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:297)
>       at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:277)
> Caused by: java.lang.IllegalStateException: requestSeek cannot be called on 
> ReversedKeyValueHeap
>       at 
> org.apache.hadoop.hbase.regionserver.ReversedKeyValueHeap.requestSeek(ReversedKeyValueHeap.java:65)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.joinedHeapMayHaveData(HRegion.java:6485)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:6412)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:6126)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:6112)
>       at 
> org.apache.phoenix.iterate.RegionScannerFactory$1.nextRaw(RegionScannerFactory.java:175)
>       ... 10 more
> {code}



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