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From "Vincent Poon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-4917) ClassCastException when projecting array elements in hash join
Date Mon, 08 Oct 2018 23:32:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-4917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vincent Poon updated PHOENIX-4917:
----------------------------------
    Affects Version/s:     (was: 4.14.1)
        Fix Version/s:     (was: 4.14.1)

> 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
>            Reporter: Gerald Sangudi
>            Assignee: Gerald Sangudi
>            Priority: Blocker
>             Fix For: 4.15.0
>
>         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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