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https://issues.apache.org/jira/browse/HIVE-8484?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lorand Bendig updated HIVE-8484:
--------------------------------
Status: Patch Available (was: Open)
> 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
>
> Attachments: HIVE-8484.patch
>
>
> 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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