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python访问hbase方法

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安装

python不能直接访问hbase，必须通过thrift插件才能访问hbase，下面是对hbase和thriftpython插件的安装

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pip install thrift
pip install hbase-thrift

访问hbase

hbase_client.py

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#!/usr/bin/python
#encoding=utf-8

from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

from hbase import Hbase
from hbase.ttypes import *

class HbaseClient(object):
    def __init__(self, host='', port=9090):
        self.sock = TSocket.TSocket(host, port)
        self.transport = TTransport.TBufferedTransport(self.sock)
        self.proto = TBinaryProtocol.TBinaryProtocol(self.transport)
        self.client = Hbase.Client(self.proto)

    def get_tables(self):
        self.transport.open()
        tables = self.client.getTableNames()
        self.transport.close()
        return tables

    def get_column_desp(self, table_name):
        self.transport.open()
        column_desp = self.client.getColumnDescriptors(table_name)
        self.transport.close()
        return column_desp

    def get_hbase_client(self):
        return self.client

    def open(self):
        self.transport.open()
    def close(self):
        self.transport.close()

test.py

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import hbase_client as hc

con = hc.HbaseClient(host='x.x.x.x')
client = con.get_hbase_client()

con.open()
tbls = client.getTableNames()
print tbls
mytbls = []
for tbl in tbls:
    if not (tbl == 'YJDD:myApp' or tbl == 'YJDD:myAppDetail'):
        continue
    print "ColumnDescriptors:"
    tbl_desp = client.getColumnDescriptors(tbl)
    print tbl_desp
    print "TableRegions:"
    tbl_reg = client.getTableRegions(tbl)
    print tbl_reg
    mytbls.append(tbl)
                                            
print "============== scannerGet ============"
for tbl in mytbls:
    sid = client.scannerOpen(tbl, '', ['user','app'])
    row_result = client.scannerGet(sid)
    print row_result
    while row_result:
        row_result = client.scannerGet(sid)
        if row_result:
            print row_result
    print "--------------------------"

    client.scannerClose(sid)

print "=============== scannerGetList ============"
for tbl in mytbls:
    sid = client.scannerOpen(tbl, '', ['user','app'])
    row_result = client.scannerGetList(sid, 20)
    print row_result
    client.scannerClose(sid)
    print "--------------------------"
con.close()

参考&鸣谢