I would like to get the same information about the regions of a table that appear in the web UI (i.e. region name, region server, start/end key, locality), but through the hbase shell.
(The UI is flaky/slow, and furthermore I want to process this information as part of a script.)
After much googling, I can't find out how, and this surprises me immensely. version is 1.0.0.-cdh5.4.0
To get the region info about the table, you need to scan hbase:meta
table.
scan 'hbase:meta',{FILTER=>"PrefixFilter('table_name')"}
This command will give details of all the regions. Row key will have region name and there will be four column qualifiers. You may need following two column qualifiers:
info:regioninfo
- This qualifier contains STARTKEY and ENDKEY.
info:server
- This qualifier contains region server details