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https://issues.apache.org/jira/browse/PHOENIX-4917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16637429#comment-16637429
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Gerald Sangudi commented on PHOENIX-4917:
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[~twdsi...@gmail.com] - How do I convert an integer PK value, say 10, into a
[]byte that can be used as a split point?
> ClassCastException when projecting array elements in hash join
> --------------------------------------------------------------
>
> Key: PHOENIX-4917
> URL: https://issues.apache.org/jira/browse/PHOENIX-4917
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.15.0, 4.14.1
> Reporter: Gerald Sangudi
> Assignee: Gerald Sangudi
> Priority: Blocker
> Fix For: 4.15.0, 4.14.1
>
> Attachments: PHOENIX-4917.patch, PHOENIX-4917.patch,
> PHOENIX-4917.patch, PHOENIX-4917.patch
>
>
> This bug was introduced in the fix for PHOENIX-4791.
> When projecting array elements in hash join, we now generate both
> ProjectedTupleValue and MultiKeyTupleValue. Before the fix for PHOENIX-4791,
> hash join was only generating ProjectedTupleValue, and there were two lines
> of code with class casts that reflected this assumption. The fix is to handle
> both ProjectedTupleValue and MultiKeyTupleValue, while continuing to
> propagate the array cell as in PHOENIX-4791.
>
> The stack trace with the ClassCastException:
> Caused by:
> org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.DoNotRetryIOException):
> org.apache.hadoop.hbase.DoNotRetryIOException:
> GENO_DOSE,,1537598769044.1a6cb8853b036c59e7515d8e876e28c5.:
> org.apache.phoenix.schema.tuple.MultiKeyValueTuple cannot be cast to
> org.apache.phoenix.execute.TupleProjector$ProjectedValueTuple
> at org.apache.phoenix.util.ServerUtil.createIOException(ServerUtil.java:96)
> at org.apache.phoenix.util.ServerUtil.throwIOException(ServerUtil.java:62)
> at
> org.apache.phoenix.coprocessor.HashJoinRegionScanner.nextRaw(HashJoinRegionScanner.java:300)
> at
> org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:82)
> at
> org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:82)
> at
> org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:294)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2633)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2837)
> at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:34950)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2339)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:123)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:188)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:168)
> Caused by: java.lang.ClassCastException:
> org.apache.phoenix.schema.tuple.MultiKeyValueTuple cannot be cast to
> org.apache.phoenix.execute.TupleProjector$ProjectedValueTuple
> at
> org.apache.phoenix.coprocessor.HashJoinRegionScanner.processResults(HashJoinRegionScanner.java:220)
> at
> org.apache.phoenix.coprocessor.HashJoinRegionScanner.nextRaw(HashJoinRegionScanner.java:294)
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