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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4366) Rebuilding a local index fails sometimes
Date Thu, 12 Apr 2018 00:24:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16434757#comment-16434757
] 

Josh Elser commented on PHOENIX-4366:
-------------------------------------

Concretely:
{code:java}
diff --git a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/BaseScannerRegionObserver.java
b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/BaseScannerRegionObserver.java
index 7e4e63cc6..3f980329b 100644
--- a/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/BaseScannerRegionObserver.java
+++ b/phoenix-core/src/main/java/org/apache/phoenix/coprocessor/BaseScannerRegionObserver.java
@@ -196,7 +196,6 @@ abstract public class BaseScannerRegionObserver implements RegionObserver
{
             // start exclusive and the stop inclusive.
             ScanUtil.setupReverseScan(scan);
         }
-        return s;
     }

     private class RegionScannerHolder extends DelegateRegionScanner {{code}

> Rebuilding a local index fails sometimes
> ----------------------------------------
>
>                 Key: PHOENIX-4366
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4366
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.12.0
>            Reporter: Marcin Januszkiewicz
>            Assignee: James Taylor
>            Priority: Blocker
>             Fix For: 4.14.0, 5.0.0
>
>         Attachments: PHOENIX-4366_addendum1.patch, PHOENIX-4366_v1.patch, PHOENIX-4366_v2.patch
>
>
> We have a table created in 4.12 with the new column encoding scheme and with several
local indexes. Sometimes when we issue an ALTER INDEX ... REBUILD command, it fails with the
following exception:
> {noformat}
> Error: org.apache.phoenix.exception.PhoenixIOException: org.apache.hadoop.hbase.DoNotRetryIOException:
TRACES,\x01BY01O90A6-$599a349e,1509979836322.3f
> 30c9d449ed6c60a1cda6898f766bd0.: null                                               
                                                                                         
               
>         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.BaseScannerRegionObserver$RegionScannerHolder.overrideDelegate(BaseScannerRegionObserver.java:255)
                                                 
>         at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:284)
                                                          
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2541)
                                                                                         
        
>         at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:33648)
                                                               
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2183)          
                                                                                         
               
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)          
                                                                                         
               
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:183)
                                                                                         
               
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:163)
                                                                                         
               
> Caused by: java.lang.UnsupportedOperationException                                  
                                                                                         
               
>         at org.apache.phoenix.schema.PTable$QualifierEncodingScheme$1.decode(PTable.java:247)
                                                                                         
      
>         at org.apache.phoenix.schema.tuple.EncodedColumnQualiferCellsList.add(EncodedColumnQualiferCellsList.java:141)
                                                                       
>         at org.apache.phoenix.schema.tuple.EncodedColumnQualiferCellsList.add(EncodedColumnQualiferCellsList.java:56)
                                                                        
>         at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:560)
                                                                                         
           
>         at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:147)
                                                                                         
           
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:5735)
                                                                                  
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:5891)
                                                                                    
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:5669)
                                                                                         
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:5654)
                                                                                         
>         at org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.doPostScannerOpen(UngroupedAggregateRegionObserver.java:522)
                                                      
>         at org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.overrideDelegate(BaseScannerRegionObserver.java:236)
                                                 
>         ... 7 more (state=08000,code=101) 
> {noformat}
> This failure is intermittent, since usually we can run the command again and it will
succeed.



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