Document tips for upgrading HBase coprocessors

Document tips for upgrading HBase coprocessors

The HBase shell is based on JRuby and allows for light scripting. For example,

'''
list.grep(/geomesa/).each
{ |table| describe table }

'''
Would describe all the tables which have 'geomesa' in their name.

Similarly a routine maintenance operation like updating all the coprocessor jars could be achieved with

'''
list.grep(/geomesa/).each{ |table| alter table,
{METHOD => 'table_att_unset', NAME => 'coprocessor$1'}
,
{'coprocessor'=>'s3:///geomesa-hbase-distributed-runtime-hbase1_2.11-3.0.0-SNAPSHOT.jar|org.locationtech.geomesa.hbase.coprocessor.GeoMesaCoprocessor|1073741823|'}
}
'''

Original JIRA Issue: https://geomesa.atlassian.net/browse/GEOMESA-2839

Key: GEOMESA-2839
Type: Improvement
Priority: Major
Status: To Do
Resolution: Unresolved
Reporter: James Hughes
Created: Wed, 29 Apr 2020 17:03:38 -0400
Updated: Wed, 29 Apr 2020 17:03:38 -0400

Start with the HBase shell examples in the issue and locate the project documentation for HBase coprocessors and routine maintenance. Verify the JRuby commands against the supported HBase version; done means the documentation explains how to upgrade coprocessor jars and includes working examples for selecting and altering tables.