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https://issues.apache.org/jira/browse/HBASE-4554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146816#comment-13146816
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jirapos...@reviews.apache.org commented on HBASE-4554:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/2350/
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(Updated 2011-11-09 07:01:14.224310)
Review request for hbase and Gary Helmling.
Changes
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Minor update by Ted's comments.
Summary
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Features:
- Support adding table level coprocessors -- regionobserver and endpoint --
from shell.
- Support removing table attributes from shell.
Introduced shell comands:
hbase> alter 't1', METHOD => 'table_att', \
'coprocessor'=>'|org.apache.hadoop.hbase.coprocessor.SimpleRegionObserver||'
coprocessor$1 => 'hdfs:///foo.jar|com.sample.foo|1' will be added to htd. So
that cp framework can load the cp later on.
hbase> alter 't1', METHOD => 'table_att_unset', NAME => 'MAX_FILESIZE'
hbase> alter 't1', METHOD => 'table_att_unset', NAME => 'coprocessor$1'
This addresses bug HBASE-4554.
https://issues.apache.org/jira/browse/HBASE-4554
Diffs (updated)
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src/main/java/org/apache/hadoop/hbase/HConstants.java 76278a2
src/main/ruby/hbase/admin.rb 61e04d8
src/main/ruby/shell/commands/alter.rb ee3668d
src/test/ruby/hbase/admin_test.rb df88100
Diff: https://reviews.apache.org/r/2350/diff
Testing
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Test passed after applied HBase-4555 patch locally.
Thanks,
Mingjie
> Allow set/unset coprocessor table attributes from shell.
> --------------------------------------------------------
>
> Key: HBASE-4554
> URL: https://issues.apache.org/jira/browse/HBASE-4554
> Project: HBase
> Issue Type: Improvement
> Components: coprocessors
> Reporter: Mingjie Lai
> Assignee: Mingjie Lai
> Fix For: 0.92.0
>
>
> Table/region level coprocessor -- RegionObserver -- can be configured by
> setting a HTD's attribute which matches Coprocessor$*.
> 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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