Pig
  1. Pig
  2. PIG-226

Problem with streaming optimization

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.1.0
    • Component/s: None
    • Labels:
      None

      Description

      Current optimization code assumes that every storeage function implements both LoadFunc and StoreFunc interfaces and causes an exception if it does not.

      2008-05-01 13:31:23,662 [main] ERROR org.apache.pig.tools.grunt.Grunt - java.lang.RuntimeException: could not instantiate 'org.apache.pig.test.udf.storefunc.DumpLoader' with arguments '[]'
      at org.apache.pig.impl.PigContext.instantiateFunc(PigContext.java:515)
      at org.apache.pig.impl.PigContext.instantiateFuncFromSpec(PigContext.java:521)
      at org.apache.pig.impl.logicalLayer.optimizer.streaming.StoreOptimizer.visitStore(StoreOptimizer.java:103)
      at org.apache.pig.impl.logicalLayer.LOStore.visit(LOStore.java:121)
      at org.apache.pig.impl.logicalLayer.optimizer.streaming.StoreOptimizer.optimize(StoreOptimizer.java:145)
      at org.apache.pig.PigServer.optimizeAndRunQuery(PigServer.java:411)
      at org.apache.pig.PigServer.registerQuery(PigServer.java:297)
      at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:450)
      at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:233)
      at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:62)
      at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:60)
      at org.apache.pig.Main.main(Main.java:296)

      The code that needs to change is in impl/logicalLayer/optimizer/streaming/LoadOptimizer.java and impl/logicalLayer/optimizer/streaming/StoreOptimizer.java.

      The logic that needs to be added is if the load/store interface is not implemented then disable optimization.

      1. PIG-226_0_20080501.patch
        7 kB
        Arun C Murthy
      2. PIG-226_1_20080502.patch
        5 kB
        Arun C Murthy

        Activity

          People

          • Assignee:
            Arun C Murthy
            Reporter:
            Olga Natkovich
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            Dates

            • Created:
              Updated:
              Resolved:

              Development