[
https://issues.apache.org/jira/browse/HIVE-1451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arvind Prabhakar updated HIVE-1451:
-----------------------------------
Assignee: (was: Arvind Prabhakar)
> Creating a table stores the full address of namenode in the metadata. This
> leads to problems when the namenode address changes.
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-1451
> URL: https://issues.apache.org/jira/browse/HIVE-1451
> Project: Hive
> Issue Type: Bug
> Components: Metastore, Query Processor
> Affects Versions: 0.5.0
> Environment: Any
> Reporter: Arvind Prabhakar
>
> Here is an excerpt from table metadata for an arbitrary table {{table1}}:
> {noformat}
> hive> describe extended table1;
> OK
> ...
> Detailed Table Information ...
> location:hdfs://localhost:9000/user/arvind/hive/warehouse/table1,
> ...
> {noformat}
> As can be seen, the full address of namenode is captured in the location
> information for the table. This information is later used to run any queries
> on the table - thus making it impossible to change the namenode location once
> the table has been created. For example, for the above table, a query will
> fail if the namenode is migrated from port 9000 to 8020:
> {noformat}
> hive> select * from table1;
> OK
> Failed with exception java.io.IOException:java.net.ConnectException: Call to
> localhost/127.0.0.1:9000
> failed on connection exception: java.net.ConnectException: Connection refused
> Time taken: 10.78 seconds
> hive>
> {noformat}
> It should be possible to change the namenode location regardless of when the
> tables are created. Also, any query execution should work with the configured
> namenode at that point in time rather than requiring the configuration to be
> exactly the same at the time when the tables were created.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
