Hi,
The Hbase/Jython ( http://wiki.apache.org/hadoop/Hbase/Jython ) wiki
page is outdated.
I want to edit it but the page is marked as immutable.
I have attached a working sample and a patched version of bin/hbase
with the jython command added.
--
Savu Andrei
Website: http://www.andreisavu.ro/
import java.lang
from org.apache.hadoop.hbase import HBaseConfiguration, HTableDescriptor, HColumnDescriptor, HConstants
from org.apache.hadoop.hbase.client import HBaseAdmin, HTable
from org.apache.hadoop.hbase.io import BatchUpdate, Cell, RowResult
# First get a conf object. This will read in the configuration
# that is out in your hbase-*.xml files such as location of the
# hbase master node.
conf = HBaseConfiguration()
# Create a table named 'test' that has two column families,
# one named 'content, and the other 'anchor'. The colons
# are required for column family names.
tablename = "test"
desc = HTableDescriptor(tablename)
desc.addFamily(HColumnDescriptor("content:"))
desc.addFamily(HColumnDescriptor("anchor:"))
admin = HBaseAdmin(conf)
# Drop and recreate if it exists
if admin.tableExists(tablename):
admin.disableTable(tablename)
admin.deleteTable(tablename)
admin.createTable(desc)
tables = admin.listTables()
table = HTable(conf, tablename)
# Add content to 'column:' on a row named 'row_x'
row = 'row_x'
update = BatchUpdate(row)
update.put('content:', 'some content')
table.commit(update)
# Now fetch the content just added, returns a byte[]
data_row = table.get(row, "content:")
data = java.lang.String(data.value, "UTF8")
print "The fetched row contains the value '%s'" % data
# Delete the table.
admin.disableTable(desc.getName())
admin.deleteTable(desc.getName())
