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Posted to dev@hive.apache.org by "Lorand Bendig (JIRA)" <ji...@apache.org> on 2014/10/16 13:24:33 UTC
[jira] [Created] (HIVE-8484) HCatalog throws an exception if Pig
job is of type 'fetch'
Lorand Bendig created HIVE-8484:
-----------------------------------
Summary: HCatalog throws an exception if Pig job is of type 'fetch'
Key: HIVE-8484
URL: https://issues.apache.org/jira/browse/HIVE-8484
Project: Hive
Issue Type: Bug
Components: HCatalog
Affects Versions: 0.14.0
Reporter: Lorand Bendig
Fix For: 0.14.0
When Pig tries to retrieve result in fetch mode through HCatalog then HCatLoader#setLocation(String location, Job job) can't set the outputschema because HCatUtil#checkJobContextIfRunningFromBackend(job) always returns false :
{code}
public static boolean checkJobContextIfRunningFromBackend(JobContext j) {
if (j.getConfiguration().get("mapred.task.id", "").equals("") &&
!("true".equals(j.getConfiguration().get("pig.illustrating")))) {
return false;
}
return true;
}
{code}
This is because in fetch mode we don't have a mapred.task.id. A null outputschema will raise an exception when HCatBaseLoader#getNext() is called: (ERROR 6018: Error converting read value to tuple).
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