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https://issues.apache.org/jira/browse/TAJO-423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895583#comment-13895583
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Hyunsik Choi commented on TAJO-423:
-----------------------------------
Is this issue still reasonable? I couldn't reproduce this issue.
> Using aggregation query on local file system.
> ---------------------------------------------
>
> Key: TAJO-423
> URL: https://issues.apache.org/jira/browse/TAJO-423
> Project: Tajo
> Issue Type: Bug
> Affects Versions: 0.8-incubating
> Reporter: Jaehwa Jung
> Fix For: 0.8-incubating
>
>
> I found a bug to use aggregation query which scan external table stored on
> local file system as follows:
> * make just directory on local file system.
> ** location: /Users/blrunner/data/tajo/table1
> * create table on tsql
> ** create external table table1 (id int, name text, score float, type text)
> using csv with ('csvfile.delimiter'='|') location
> 'file:/Users/blrunner/data/tajo/table1';
> * query test
> ** select count(*) from table1: *PASSED*
> ** select id, count(*) from table1 group by id: *PASSED*
> * make csv file on location which is '/Users/blrunner/data/tajo/table1'
> * query test again
> ** select count(*) from table1: *PASSED*
> ** select id, count(*) from table1 group by id: *{color:red}FAILED{color}*
> {code:xml}
> 2013-12-16 18:54:38,080 INFO planner.PhysicalPlannerImpl
> (PhysicalPlannerImpl.java:createBestAggregationPlan(727)) - The planner
> chooses [Hash Aggregation]
> 2013-12-16 18:54:38,080 INFO planner.PhysicalPlannerImpl
> (PhysicalPlannerImpl.java:createInMemoryHashAggregation(679)) - The planner
> chooses [Hash Aggregation]
> 2013-12-16 18:54:38,080 ERROR worker.Task (Task.java:run(366)) -
> java.lang.IllegalArgumentException: The number of partitions must be
> positive: 0
> at
> com.google.common.base.Preconditions.checkArgument(Preconditions.java:119)
> at
> org.apache.tajo.engine.planner.logical.StoreTableNode.setPartitions(StoreTableNode.java:88)
> at
> org.apache.tajo.engine.planner.PhysicalPlannerImpl.buildOutputOperator(PhysicalPlannerImpl.java:97)
> at
> org.apache.tajo.engine.planner.PhysicalPlannerImpl.createPlan(PhysicalPlannerImpl.java:80)
> at
> org.apache.tajo.worker.TajoQueryEngine.createPlan(TajoQueryEngine.java:44)
> at org.apache.tajo.worker.Task.run(Task.java:355)
> at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:376)
> at java.lang.Thread.run(Thread.java:680)
> 2013-12-16 18:54:38,081 INFO worker.Task (Task.java:run(411)) - Task Counter
> - total:5, succeeded: 2, failed: 3
> 2013-12-16 18:54:38,081 INFO worker.TaskRunner (TaskRunner.java:run(318)) -
> Request GetTask:
> eb_1387181184478_0005_000001,container_1387181184478_0005_01_000003
> 2013-12-16 18:54:38,081 ERROR querymaster.QueryUnitAttempt
> (QueryUnitAttempt.java:transition(292)) - FROM 192.168.0.187 >>
> java.lang.IllegalArgumentException: The number of partitions must be
> positive: 0
> at
> com.google.common.base.Preconditions.checkArgument(Preconditions.java:119)
> at
> org.apache.tajo.engine.planner.logical.StoreTableNode.setPartitions(StoreTableNode.java:88)
> at
> org.apache.tajo.engine.planner.PhysicalPlannerImpl.buildOutputOperator(PhysicalPlannerImpl.java:97)
> at
> org.apache.tajo.engine.planner.PhysicalPlannerImpl.createPlan(PhysicalPlannerImpl.java:80)
> at
> org.apache.tajo.worker.TajoQueryEngine.createPlan(TajoQueryEngine.java:44)
> at org.apache.tajo.worker.Task.run(Task.java:355)
> at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:376)
> at java.lang.Thread.run(Thread.java:680)
> {code}
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