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  1. Hive
  2. HIVE-6117

mapreduce.RecordReader instance needs to be initialized

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.13.0
    • Component/s: HBase Handler
    • Labels:
      None

      Description

      The HBase storage handler makes use of a mapreduce.RecordReader instance but does not initialize it when consumed from local context. This results in a NPE for some queries, for instance

      create table hbase_1(key string, age int) stored by 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' with serdeproperties ( "hbase.columns.mapping" = "info:age");
      insert overwrite table hbase_1 select name, SUM(age) from studenttab10k group by name;
      select * from hbase_1;
      

      The select statement throws the following exception

      13/12/18 01:30:32 ERROR CliDriver: Failed with exception java.io.IOException:java.lang.NullPointerException
      java.io.IOException: java.lang.NullPointerException
      at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:551)
      at org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:489)
      at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:136)
      at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1494)
      at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:271)
      at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:216)
      at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:413)
      at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:348)
      at org.apache.hadoop.hive.cli.CliDriver.processReader(CliDriver.java:446)
      at org.apache.hadoop.hive.cli.CliDriver.processFile(CliDriver.java:456)
      at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:737)
      at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:675)
      at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:614)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
      Caused by: java.lang.NullPointerException
      at org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl.nextKeyValue(TableRecordReaderImpl.java:196)
      at org.apache.hadoop.hbase.mapreduce.TableRecordReader.nextKeyValue(TableRecordReader.java:138)
      at org.apache.hadoop.hive.hbase.HiveHBaseTableInputFormat$1.next(HiveHBaseTableInputFormat.java:234)
      at org.apache.hadoop.hive.hbase.HiveHBaseTableInputFormat$1.next(HiveHBaseTableInputFormat.java:193)
      at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:521)
      

        Attachments

        1. 6117.00.patch
          0.8 kB
          Nick Dimiduk
        2. HIVE-6117.0.patch
          0.8 kB
          Brock Noland

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              • Assignee:
                ndimiduk Nick Dimiduk
                Reporter:
                ndimiduk Nick Dimiduk
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                Dates

                • Created:
                  Updated:
                  Resolved: