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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1611) [hbase] Add enableTable, disableTable, addColumn, etc, to shell
Date Thu, 13 Sep 2007 17:40:32 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12527196
] 

stack commented on HADOOP-1611:
-------------------------------

HADOOP-1720 adds 'alter table'.  Using it, you can add/delete columns.  It runs the disable/enable
of the table for you.

The 'alter table' also has notion of 'change' for column families to set column family attributes
but currently its unimplemented.

That leaves enable/disable table, merge of two adjacent regions (Specifying regexes on selects
belongs in an another issue).

> [hbase] Add enableTable, disableTable, addColumn, etc, to shell
> ---------------------------------------------------------------
>
>                 Key: HADOOP-1611
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1611
>             Project: Hadoop
>          Issue Type: Sub-task
>          Components: contrib/hbase
>            Reporter: stack
>            Priority: Minor
>
> Here are some nice-to-have admin functions that would sit nicely in hbase shell:
> +  public void addColumn(Text tableName, HColumnDescriptor column) throws IOException;
> +  public void deleteColumn(Text tableName, Text columnName) throws IOException;
> +  
> +  public void enableTable(Text tableName) throws IOException;
> +  public void disableTable(Text tableName) throws IOException;
> (To add/delete columns you must first disable the table and then reenable it).
> Other possibles:
> +  public void mergeRegions(Text regionName1, Text regionName2) throws IOException;
> + Allow specification of basic row filtering (Doesn't have to be exotic): regex match,
upper limit on rows returned.
> + Allow changing versions on column families, enabling/disabling compression, bloom filters

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