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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3645) RCFileWriter does not implement the right function to support Federation
Date Tue, 27 Nov 2012 07:29:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13504419#comment-13504419
] 

Ashutosh Chauhan commented on HIVE-3645:
----------------------------------------

+1 will commit if tests pass.
                
> 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
>         Attachments: HIVE_3645_branch_0.patch, HIVE_3645_trunk_0.patch
>
>
> 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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