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Posted to dev@hive.apache.org by "Namit Jain (JIRA)" <ji...@apache.org> on 2009/09/14 21:04:57 UTC
[jira] Created: (HIVE-829) no atomicity for a reader/writer for a
job
no atomicity for a reader/writer for a job
------------------------------------------
Key: HIVE-829
URL: https://issues.apache.org/jira/browse/HIVE-829
Project: Hadoop Hive
Issue Type: New Feature
Components: Query Processor
Reporter: Namit Jain
Hive currently does not provide any atomicity for a reader/writer.
So, if a reader/writer is running concurrently, the reader may randomly die or even see partial results.
Some kind of synchronization mechanisms (lease, lock in metastore/somewhere else) are needed to manage the above.
This also applies to multiple writers (say multiple load into...)
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[jira] Resolved: (HIVE-829) no atomicity for a reader/writer for a
job
Posted by "Namit Jain (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HIVE-829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain resolved HIVE-829.
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Resolution: Duplicate
Duplicate of https://issues.apache.org/jira/browse/HIVE-1293
> no atomicity for a reader/writer for a job
> ------------------------------------------
>
> Key: HIVE-829
> URL: https://issues.apache.org/jira/browse/HIVE-829
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Namit Jain
>
> Hive currently does not provide any atomicity for a reader/writer.
> So, if a reader/writer is running concurrently, the reader may randomly die or even see partial results.
> Some kind of synchronization mechanisms (lease, lock in metastore/somewhere else) are needed to manage the above.
> This also applies to multiple writers (say multiple load into...)
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You can reply to this email to add a comment to the issue online.