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From "David Dobbins (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10135) writes to swift fs over partition size leave temp files and empty output file
Date Wed, 27 Nov 2013 21:18:35 GMT
David Dobbins created HADOOP-10135:
--------------------------------------

             Summary: writes to swift fs over partition size leave temp files and empty output
file
                 Key: HADOOP-10135
                 URL: https://issues.apache.org/jira/browse/HADOOP-10135
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs
    Affects Versions: 3.0.0
            Reporter: David Dobbins


The OpenStack/swift filesystem produces incorrect output when the written objects exceed the
configured partition size. After job completion, the expected files in the swift container
have length == 0 and a collection of temporary files remain with names that appear to be URLs.

This can be replicated with teragen against the minicluster using the following command line:
bin/hadoop jar ./share/hadoop/mapreduce/hadoop-mapreduce-examples-3.0.0-SNAPSHOT.jar teragen
100000 swift://mycontainer.myservice/teradata

Where core-site.xml contains:
  <property>
    <name>fs.swift.impl</name>
    <value>org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem</value>
  </property>
  <property>
    <name>fs.swift.service.myservice.auth.url</name>
    <value>https://auth.api.rackspacecloud.com/v2.0/tokens</value>
  </property>
  <property>
    <name>fs.swift.service.myservice.username</name>
    <value>[[your-cloud-username]]</value>
  </property>
  <property>
    <name>fs.swift.service.myservice.region</name>
    <value>DFW</value>
  </property>
  <property>
    <name>fs.swift.service.myservice.apikey</name>
    <value>[[your-api-key]]</value>
  </property>
  <property>
    <name>fs.swift.service.myservice.public</name>
    <value>true</value>
  </property>

Container "mycontainer" should have a collection of objects with names starting with "teradata/part-m-00000".
 Instead, that file is empty and there is a collection of objects with names like "swift://mycontainer.myservice/teradata/_temporary/0/_temporary/attempt_local415043862_0001_m_000000_0/part-m-00000/000010"



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