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From "Prasad Chakka (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-126) Don't fetch information on Partitions from HDFS instead of MetaStore
Date Mon, 22 Dec 2008 19:54:44 GMT

    [ https://issues.apache.org/jira/browse/HIVE-126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12658643#action_12658643
] 

Prasad Chakka commented on HIVE-126:
------------------------------------

Johan,
I think we should have HIVE-142 before removing this code. This would help us verify that
nothing is amiss.



> Don't fetch information on Partitions from HDFS instead of MetaStore
> --------------------------------------------------------------------
>
>                 Key: HIVE-126
>                 URL: https://issues.apache.org/jira/browse/HIVE-126
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Johan Oskarsson
>            Assignee: Johan Oskarsson
>             Fix For: 0.2.0
>
>         Attachments: HIVE-126.patch, HIVE-126.patch
>
>
> When investigating HIVE-91 an issue came up where the information on what partitions
a table contains is loaded by listing the directories in the table directory on HDFS. This
is then used to overrule what is in the MetaStore if any difference is found. 
> * Would it not be preferable if MetaStore is the one authority on what the table contains?
> * It will also be a major hassle (or impossible?) to retrieve this information from HDFS
with external tables that have non standard partition names (HIVE-91), such as: table/2008/01/08/portugal
where "2008/01/08" is one partition value and "portugal" is another.

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