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https://issues.apache.org/jira/browse/DRILL-200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jacques Nadeau resolved DRILL-200.
----------------------------------
Resolution: Fixed
Fixed in 735b121
> deadbuff when doing count(1) on table with multiple batches
> -----------------------------------------------------------
>
> Key: DRILL-200
> URL: https://issues.apache.org/jira/browse/DRILL-200
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Steven Phillips
>
> Here is the query:
> select count(1) from "/tmp/tpc-h/supplier";
> It gives this error:
> java.lang.UnsupportedOperationException: Attemped to access a DeadBuf. This
> would happen if you attempted to interact with a buffer that has been moved
> or not yet initialized.
> org.apache.drill.exec.record.DeadBuf.getLong(DeadBuf.java:250)
> ~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
>
> org.apache.drill.exec.vector.BigIntVector$Accessor.get(BigIntVector.java:187)
> ~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
>
> org.apache.drill.exec.test.generated.Gen3.addRecord(AggTemplate.java:24)
> ~[na:na]
>
> org.apache.drill.exec.test.generated.Gen3.addRecordInc(AggTemplate.java:268)
> ~[na:na]
> org.apache.drill.exec.test.generated.Gen3.doWork(AggTemplate.java:176)
> ~[na:na]
>
> org.apache.drill.exec.physical.impl.aggregate.AggBatch.next(AggBatch.java:89)
> ~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
>
> org.apache.drill.exec.record.AbstractSingleRecordBatch.next(AbstractSingleRecordBatch.java:25)
> ~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
>
> org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.next(ScreenCreator.java:77)
> ~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
> org.apache.drill.exec.work.FragmentRunner.run(FragmentRunner.java:79)
> ~[java-exec-1.0-SNAPSHOT-rebuffed.jar:1.0-SNAPSHOT]
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> [na:1.7.0_21]
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_21]
> java.lang.Thread.run(Thread.java:722) [na:1.7.0_21]
> Here is the physical plan that is generated:
> {
> head : {
> type : "APACHE_DRILL_PHYSICAL",
> version : 1,
> generator : {
> type : "optiq",
> info : "na"
> }
> },
> graph : [ {
> pop : "parquet-scan",
> @id : 1,
> entries : [ {
> path : "/tmp/tpc-h/supplier"
> } ],
> storageengine : {
> type : "parquet",
> dfsName : "file:///"
> },
> ref : "_MAP",
> fragmentPointer : 0
> }, {
> pop : "project",
> @id : 2,
> exprs : [ {
> ref : "output.$f0",
> expr : "1"
> } ],
> child : 1
> }, {
> pop : "sort",
> @id : 3,
> child : 2,
> orderings : [ ],
> reverse : false
> }, {
> pop : "streaming-aggregate",
> @id : 4,
> child : 3,
> keys : [ ],
> exprs : [ {
> ref : "EXPR$0",
> expr : "count($f0) "
> } ]
> }, {
> pop : "selection-vector-remover",
> @id : 5,
> child : 4
> }, {
> pop : "screen",
> @id : 6,
> child : 5
> } ]
> }
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