[jira] [Created] (HBASE-20219) An error occurs when scanning with reversed=true and loadColumnFamiliesOnDemand=true

["Toshihiro Suzuki (JIRA)" <ji...@apache.org>]

Toshihiro Suzuki created HBASE-20219:
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             Summary: An error occurs when scanning with reversed=true and loadColumnFamiliesOnDemand=true
                 Key: HBASE-20219
                 URL: https://issues.apache.org/jira/browse/HBASE-20219
             Project: HBase
          Issue Type: Bug
            Reporter: Toshihiro Suzuki


I'm facing the following error when scanning with reversed=true and loadColumnFamiliesOnDemand=true:
{code}
java.lang.IllegalStateException: requestSeek cannot be called on ReversedKeyValueHeap
	at org.apache.hadoop.hbase.regionserver.ReversedKeyValueHeap.requestSeek(ReversedKeyValueHeap.java:66)
	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.joinedHeapMayHaveData(HRegion.java:6725)
	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:6652)
	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:6364)
	at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:3108)
	at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:3345)
	at org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:41548)
	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)
	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
{code}

I will attach a UT patch to reproduce this issue.




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