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Date: Fri, 4 Dec 2015 02:05:11 +0000 (UTC)
From: "liyunzhang_intel (JIRA)" <jira@apache.org>
To: pig-dev@hadoop.apache.org
Message-ID: <JIRA.12863475.1441993397000.267647.1449194711289@Atlassian.JIRA>
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 <JIRA.12863475.1441993397818@arcas>
Subject: [jira] [Updated] (PIG-4675) FR+Limit case fails when enable
 MultiQuery because the predecessor information is wrongly calculated in
 current code.
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     [ https://issues.apache.org/jira/browse/PIG-4675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

liyunzhang_intel updated PIG-4675:
----------------------------------
    Summary: FR+Limit case fails when enable MultiQuery because the predecessor information is wrongly calculated in current code.  (was: Multi Store Statement will fail on the second store statement.)

> FR+Limit case fails when enable MultiQuery because the predecessor information is wrongly calculated in current code.
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-4675
>                 URL: https://issues.apache.org/jira/browse/PIG-4675
>             Project: Pig
>          Issue Type: Sub-task
>          Components: spark
>            Reporter: Peter Lin
>            Assignee: liyunzhang_intel
>             Fix For: spark-branch
>
>         Attachments: name.txt, ssn.txt, test.pig
>
>
> We are testing the spark branch pig recently with mapr3 and spark 1.5. It turns out if we use more than 1 store command in the pig script will have exception from the second store command. 
>  SSN = load '/test/ssn.txt' using PigStorage() as (ssn:long);
>  SSN_NAME = load '/test/name.txt' using PigStorage() as (ssn:long, name:chararray);
>  X = JOIN SSN by ssn LEFT OUTER, SSN_NAME by ssn USING 'replicated';
>  R1 = limit SSN_NAME 10;
>  store R1 into '/tmp/test1_r1'; 
>  store X into '/tmp/test1_x';
> Exception Details:
> 15/09/11 13:37:00 INFO storage.MemoryStore: ensureFreeSpace(114448) called with curMem=359237, maxMem=503379394
> 15/09/11 13:37:00 INFO storage.MemoryStore: Block broadcast_2 stored as values in memory (estimated size 111.8 KB, free 479.6 MB)
> 15/09/11 13:37:00 INFO storage.MemoryStore: ensureFreeSpace(32569) called with curMem=473685, maxMem=503379394
> 15/09/11 13:37:00 INFO storage.MemoryStore: Block broadcast_2_piece0 stored as bytes in memory (estimated size 31.8 KB, free 479.6 MB)
> 15/09/11 13:37:00 INFO storage.BlockManagerInfo: Added broadcast_2_piece0 in memory on 10.51.2.82:55960 (size: 31.8 KB, free: 479.9 MB)
> 15/09/11 13:37:00 INFO spark.SparkContext: Created broadcast 2 from newAPIHadoopRDD at LoadConverter.java:88
> 15/09/11 13:37:00 WARN util.ClosureCleaner: Expected a closure; got org.apache.pig.backend.hadoop.executionengine.spark.converter.LoadConverter$ToTupleFunction
> 15/09/11 13:37:00 INFO spark.SparkLauncher: Converting operator POForEach (Name: SSN: New For Each(false)[bag] - scope-17 Operator Key: scope-17)
> 15/09/11 13:37:00 INFO spark.SparkLauncher: Converting operator POFRJoin (Name: X: FRJoin[tuple] - scope-22 Operator Key: scope-22)
> 15/09/11 13:37:00 ERROR spark.SparkLauncher: throw exception in sparkOperToRDD:
> java.lang.RuntimeException: Should have greater than1 predecessors for class org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POFRJoin. Got : 1
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkUtil.assertPredecessorSizeGreaterThan(SparkUtil.java:93)
>         at org.apache.pig.backend.hadoop.executionengine.spark.converter.FRJoinConverter.convert(FRJoinConverter.java:55)
>         at org.apache.pig.backend.hadoop.executionengine.spark.converter.FRJoinConverter.convert(FRJoinConverter.java:46)
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:633)
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:600)
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:621)
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.sparkOperToRDD(SparkLauncher.java:552)
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.sparkPlanToRDD(SparkLauncher.java:501)
>         at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.launchPig(SparkLauncher.java:204)
>         at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.launchPig(HExecutionEngine.java:301)
>         at org.apache.pig.PigServer.launchPlan(PigServer.java:1390)
>         at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1375)
>         at org.apache.pig.PigServer.execute(PigServer.java:1364)
>         at org.apache.pig.PigServer.executeBatch(PigServer.java:415)
>         at org.apache.pig.PigServer.executeBatch(PigServer.java:398)
>         at org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:171)
>         at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:234)
>         at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:205)
>         at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:81)
>         at org.apache.pig.Main.run(Main.java:624)
>         at org.apache.pig.Main.main(Main.java:170)


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