[HBASE-4554] Allow set/unset coprocessor table attributes from shell.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.92.0, 0.94.0
• Component/s: Coprocessors
• Hadoop Flags: Reviewed
• Assignee: Mingjie Lai
• Reporter: Mingjie Lai
• Created: 07/Oct/11 19:08
• Updated: 12/Oct/12 05:34
• Resolved: 10/Nov/11 17:17

Description

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:

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', ...}

Issue Links

• relates to: HBASE-3512 Coprocessors: Shell support for listing currently loaded coprocessor set