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From Tridib Samanta <tridib.sama...@live.com>
Subject Aggregation sum() fails on parquet file
Date Thu, 30 Oct 2014 19:28:47 GMT
Hello,
I am running a query like: select sum(amount) from myhdfs.parquet.`claim.parquet`;
This fails with the following error at sqlline:
 
Query failed: Failure while running fragment. Schema is currently null.  You must call buildSchema(SelectionVectorMode)
before this container can return a schema. [00314ea1-342a-4322-ac00-f8307c554733]
Error: exception while executing query: Failure while trying to get next result batch. (state=,code=0)
 
 
Here is the stack trace from drillbits.log:

2014-10-30 15:12:05,865 [3fb04943-c0e5-4801-a907-2bc3462a2997:frag:2:10] WARN  o.a.d.e.w.fragment.FragmentExecutor
- Failure while closing out resources.
java.lang.IllegalStateException: Failure while trying to close child allocator: Child level
allocators not closed. Fragment 2:10. Stack trace:
                org.apache.drill.exec.ops.OperatorContext.<init>(OperatorContext.java:41)
                org.apache.drill.exec.physical.impl.ScanBatch.<init>(ScanBatch.java:90)
                org.apache.drill.exec.store.parquet.ParquetScanBatchCreator.getBatch(ParquetScanBatchCreator.java:148)
                org.apache.drill.exec.store.parquet.ParquetScanBatchCreator.getBatch(ParquetScanBatchCreator.java:54)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:62)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
                org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitSubScan(AbstractPhysicalVisitor.java:113)
                org.apache.drill.exec.store.parquet.ParquetRowGroupScan.accept(ParquetRowGroupScan.java:107)
                org.apache.drill.exec.physical.impl.ImplCreator.getChildren(ImplCreator.java:74)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:62)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
                org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitIteratorValidator(AbstractPhysicalVisitor.java:196)
                org.apache.drill.exec.physical.config.IteratorValidator.accept(IteratorValidator.java:34)
                org.apache.drill.exec.physical.impl.ImplCreator.getChildren(ImplCreator.java:74)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:62)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
                org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitHashAggregate(AbstractPhysicalVisitor.java:93)
                org.apache.drill.exec.physical.config.HashAggregate.accept(HashAggregate.java:62)
                org.apache.drill.exec.physical.impl.ImplCreator.getChildren(ImplCreator.java:74)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:62)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
                org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitIteratorValidator(AbstractPhysicalVisitor.java:196)
                org.apache.drill.exec.physical.config.IteratorValidator.accept(IteratorValidator.java:34)
                org.apache.drill.exec.physical.impl.ImplCreator.getChildren(ImplCreator.java:74)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:59)
                org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
                org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitSender(AbstractPhysicalVisitor.java:98)
                org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitHashPartitionSender(AbstractPhysicalVisitor.java:141)
                org.apache.drill.exec.physical.config.HashPartitionSender.accept(HashPartitionSender.java:66)
                org.apache.drill.exec.physical.impl.ImplCreator.getExec(ImplCreator.java:87)
                org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:94)
                org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:250)
                java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
                java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
                java.lang.Thread.run(Thread.java:745)
        at org.apache.drill.exec.memory.TopLevelAllocator$ChildAllocator.close(TopLevelAllocator.java:215)
~[drill-java-exec-0.5.0-incubating-rebuffed.jar:0.5.0-incubating]
        at org.apache.drill.exec.ops.FragmentContext.close(FragmentContext.java:271) ~[drill-java-exec-0.5.0-incubating-rebuffed.jar:0.5.0-incubating]
        at org.apache.drill.exec.work.fragment.FragmentExecutor.closeOutResources(FragmentExecutor.java:139)
[drill-java-exec-0.5.0-incubating-rebuffed.jar:0.5.0-incubating]
        at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:107)
[drill-java-exec-0.5.0-incubating-rebuffed.jar:0.5.0-incubating]
        at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:250)
[drill-java-exec-0.5.0-incubating-rebuffed.jar:0.5.0-incubating]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_67]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_67]

Any help is greatly appreciated.
 
Thanks & Regards
Tridib
 		 	   		  
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