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From "Viraj Bhat (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-3645) RCFileWriter does not implement the right function to support Federation
Date Wed, 31 Oct 2012 18:08:13 GMT
Viraj Bhat created HIVE-3645:
--------------------------------

             Summary: RCFileWriter does not implement the right function to support Federation
                 Key: HIVE-3645
                 URL: https://issues.apache.org/jira/browse/HIVE-3645
             Project: Hive
          Issue Type: Bug
          Components: Serializers/Deserializers
    Affects Versions: 0.9.0, 0.10.0
         Environment: Hadoop 0.23.3 federation, Hive 0.9 and Pig 0.10
            Reporter: Viraj Bhat


Create a table using Hive DDL
{code}
CREATE TABLE tmp_hcat_federated_numbers_part_1 (
  id       int,  
  intnum   int,
  floatnum float
)partitioned by (
  part1    string,
  part2    string
)
STORED AS rcfile
LOCATION 'viewfs:///database/tmp_hcat_federated_numbers_part_1';
{code}

Populate it using Pig:
{code}
A = load 'default.numbers_pig' using org.apache.hcatalog.pig.HCatLoader();
B = filter A by id <=  500;
C = foreach B generate (int)id, (int)intnum, (float)floatnum;
store C into
        'default.tmp_hcat_federated_numbers_part_1'
        using org.apache.hcatalog.pig.HCatStorer
       ('part1=pig, part2=hcat_pig_insert',
        'id: int,intnum: int,floatnum: float');
{code}

Generates the following error when running on a Federated Cluster:
{quote}
2012-10-29 20:40:25,011 [main] ERROR
org.apache.pig.tools.pigstats.SimplePigStats - ERROR 2997: Unable to recreate
exception from backed error: AttemptID:attempt_1348522594824_0846_m_000000_3
Info:Error: org.apache.hadoop.fs.viewfs.NotInMountpointException:
getDefaultReplication on empty path is invalid
        at
org.apache.hadoop.fs.viewfs.ViewFileSystem.getDefaultReplication(ViewFileSystem.java:479)
        at org.apache.hadoop.hive.ql.io.RCFile$Writer.<init>(RCFile.java:723)
        at org.apache.hadoop.hive.ql.io.RCFile$Writer.<init>(RCFile.java:705)
        at
org.apache.hadoop.hive.ql.io.RCFileOutputFormat.getRecordWriter(RCFileOutputFormat.java:86)
        at
org.apache.hcatalog.mapreduce.FileOutputFormatContainer.getRecordWriter(FileOutputFormatContainer.java:100)
        at
org.apache.hcatalog.mapreduce.HCatOutputFormat.getRecordWriter(HCatOutputFormat.java:228)
        at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.getRecordWriter(PigOutputFormat.java:84)
        at
org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.<init>(MapTask.java:587)
        at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:706)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:157)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1212)
        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:152)
{quote}

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