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From "Mingjie Lai (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4554) Allow set/unset arbitrary table attributes from shell.
Date Fri, 07 Oct 2011 19:08:29 GMT
Allow set/unset arbitrary table attributes from shell.
------------------------------------------------------

                 Key: HBASE-4554
                 URL: https://issues.apache.org/jira/browse/HBASE-4554
             Project: HBase
          Issue Type: Improvement
          Components: coprocessors
            Reporter: Mingjie Lai
            Assignee: Mingjie Lai
             Fix For: 0.92.0


Table/region level coprocessor -- RegionObserver -- can be configured by setting a HTD's attribute
which matches Coprocessor$*. 

Current shell -- alter -- cannot support to set/unset a table's arbitrary attribute. We need
it in order to configure region level coprocessors to a table. 

Proposed new shell:
{code}
hbase shell > alter 't1', METHOD => 'table_att', COPROCESSOR$1 => 'hdfs://cp/foo.jar|org.apache.hadoop.hbase.sample|1|'

hbase shell > describe 't1'
 {NAME => 't1', COPROCESSOR$1 => 'hdfs://cp/foo.jar|org.apache.hadoop.hbase.sample|1|',
MAX_FILESIZE => '134217728', ...}

hbase shell > alter 't1', METHOD => 'table_att_unset', COPROCESSOR$1

hbase shell > describe 't1'
 {NAME => 't1', MAX_FILESIZE => '134217728', ...}
{code}

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