HBase实战（1）：使用Python链接Hbase数据库【未测试】

时间 2019-11-17

标签 hbase 实战使用 python 链接数据库未测试栏目 Hadoop 繁體版

原文原文链接

使用Python链接Hbase数据库html

1，Hbase下载。html5

下载地址：http://hbase.apache.org/downloads.htmlpython

2，本地Hbase安装linux

root@master:/usr/local/setup_tools# tar -zxvf hbase-2.0.0-bin.tar.gzshell

    root@master:/usr/local/setup_tools# mv hbase-2.0.0 /usr/local/
    root@master:/usr/local/setup_tools# cd /usr/local
    root@master:/usr/local# ls | grep hbase
    hbase-2.0.0
    root@master:/usr/local#数据库

    root@master:/usr/local/hbase-2.0.0# vi /etc/profile
    export HBASE_HOME=/usr/local/hbase-2.0.0

    export PATH=.:$PATH:$JAVA_HOME/bin:$SCALA_HOME/bin:$HADOOP_HOME/bin:$SPARK_HOME/bin:$HIVE_HOME/bin:$FLUME_HOME/bin:$ZOOKEEPER_HOME/bin:$KAFKA_HOME/bin:$IDEA_HOME/bin:$eclipse_HOME:$MAVEN_HOME/bin:$ALLUXIO_HOME/bin:$HBASE_HOME/binapache

root@master:/usr/local/hbase-2.0.0# source /etc/profileubuntu

3，配置ruby

修改hbase-site.xml，设置存储数据的根目录。app

root@master:/usr/local/hbase-2.0.0/conf# vi hbase-site.xml

    <configuration>
        <property>
            <name>hbase.rootdir</name>
            <value>file:///usr/local/hbase-2.0.0/data</value>
        </property>

    </configuration>

4，启动hbase

    root@master:/usr/local/hbase-2.0.0# cd bin
    root@master:/usr/local/hbase-2.0.0/bin# ls
    considerAsDead.sh     hbase             hbase-config.cmd hbase-jruby             master-backup.sh replication               start-hbase.sh zookeepers.sh
    draining_servers.rb   hbase-cleanup.sh hbase-config.sh   hirb.rb                 region_mover.rb   rolling-restart.sh        stop-hbase.cmd
    get-active-master.rb hbase.cmd         hbase-daemon.sh   local-master-backup.sh regionservers.sh shutdown_regionserver.rb stop-hbase.sh
    graceful_stop.sh      hbase-common.sh   hbase-daemons.sh local-regionservers.sh region_status.rb start-hbase.cmd           test
    root@master:/usr/local/hbase-2.0.0/bin# start-hbase.sh
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/usr/local/hbase-2.0.0/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/usr/local/hadoop-2.6.0/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/usr/local/alluxio-1.7.0-hadoop-2.6/client/alluxio-1.7.0-client.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
    running master, logging to /usr/local/hbase-2.0.0/logs/hbase-root-master-master.out
    root@master:/usr/local/hbase-2.0.0/bin# jps
    2757 Jps
    2685 HMaster

5，使用hbase shell

    root@master:/usr/local/hbase-2.0.0/bin# hbase shell
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/usr/local/hbase-2.0.0/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/usr/local/hadoop-2.6.0/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/usr/local/alluxio-1.7.0-hadoop-2.6/client/alluxio-1.7.0-client.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
    HBase Shell
    Use "help" to get list of supported commands.
    Use "exit" to quit this interactive shell.
    Version 2.0.0, r7483b111e4da77adbfc8062b3b22cbe7c2cb91c1, Sun Apr 22 20:26:55 PDT 2018
    Took 0.0044 seconds
    hbase(main):001:0>

    hbase(main):003:0> version
    2.0.0, r7483b111e4da77adbfc8062b3b22cbe7c2cb91c1, Sun Apr 22 20:26:55 PDT 2018
    Took 0.0054 seconds
    hbase(main):004:0>

启动hbase thrift服务。

    root@master:/usr/local/hbase-2.0.0/bin# hbase-daemon.sh start thrift
    running thrift, logging to /usr/local/hbase-2.0.0/logs/hbase-root-thrift-master.out
    SLF4J: Class path contains multiple SLF4J bindings.
    SLF4J: Found binding in [jar:file:/usr/local/hbase-2.0.0/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/usr/local/hadoop-2.6.0/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: Found binding in [jar:file:/usr/local/alluxio-1.7.0-hadoop-2.6/client/alluxio-1.7.0-client.jar!/org/slf4j/impl/StaticLoggerBinder.class]
    SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
    root@master:/usr/local/hbase-2.0.0/bin# jps
    3332 Jps
    3254 ThriftServer
    2685 HMaster
    root@master:/usr/local/hbase-2.0.0/bin#

二，使用Python链接Hbase。

1，创建Python开发环境 ---虚拟环境。

先进行检查。

    root@master:/usr/local/hbase-2.0.0/bin# pip
    The program 'pip' is currently not installed. You can install it by typing:
    apt-get install python-pip
    root@master:/usr/local/hbase-2.0.0/bin# python
    Python 2.7.6 (default, Mar 22 2014, 22:59:56)
    [GCC 4.8.2] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> exit()
    root@master:/usr/local/hbase-2.0.0/bin#

安装pip。

    root@master:/usr/local/hbase-2.0.0/bin# apt-get install python-pip
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    The following packages were automatically installed and are no longer required:
      diffstat hardening-includes libapt-pkg-perl libarchive-zip-perl
      libautodie-perl libclass-accessor-perl libemail-valid-perl libio-pty-perl
      libio-string-perl libipc-run-perl libipc-system-simple-perl
      liblist-moreutils-perl libnet-dns-perl libnet-domain-tld-perl libnet-ip-perl
      libparse-debianchangelog-perl libperlio-gzip-perl libsub-identify-perl
      libsub-name-perl libtext-levenshtein-perl patchutils t1utils
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    root@master:/usr/local/hbase-2.0.0/bin#

Pip安装好以后，安装virtualenv软件，让操做系统支持虚拟环境，能够获得命令virtualenv或者pyvenv命令。

    root@master:/usr/local/hbase-2.0.0/bin# pip install virtualenv
    Downloading/unpacking virtualenv
      Downloading virtualenv-16.0.0-py2.py3-none-any.whl (1.9MB): 1.9MB downloaded
    Installing collected packages: virtualenv
    Successfully installed virtualenv
    Cleaning up...
    root@master:/usr/local/hbase-2.0.0/bin#

建立虚拟环境

    root@master:/usr/local# mkdir myPythonEnv
    root@master:/usr/local# cd myPythonEnv
    root@master:/usr/local/myPythonEnv# pwd
    /usr/local/myPythonEnv
    root@master:/usr/local/myPythonEnv# Pyvenv project-env
    Pyvenv: command not found
    root@master:/usr/local/myPythonEnv# virtualenv project-env
    New python executable in /usr/local/myPythonEnv/project-env/bin/python
    Installing setuptools, pip, wheel...done.
    root@master:/usr/local/myPythonEnv#

进入虚拟环境：

root@master:/usr/local/myPythonEnv/project-env/bin# source /usr/local/myPythonEnv/project-env/bin/activate
(project-env) root@master:/usr/local/myPythonEnv/project-env/bin#

安装Thrift依赖包

    (project-env) root@master:/usr/local/myPythonEnv/project-env/bin# pip install thrift
    Collecting thrift
    /usr/local/myPythonEnv/project-env/local/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py:339: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
      SNIMissingWarning
    /usr/local/myPythonEnv/project-env/local/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py:137: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
      InsecurePlatformWarning
    /usr/local/myPythonEnv/project-env/local/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py:137: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
      InsecurePlatformWarning
      Downloading https://files.pythonhosted.org/packages/c6/b4/510617906f8e0c5660e7d96fbc5585113f83ad547a3989b80297ac72a74c/thrift-0.11.0.tar.gz (52kB)
        100% |████████████████████████████████| 61kB 22kB/s
    Collecting six>=1.7.2 (from thrift)
      Downloading https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
    Building wheels for collected packages: thrift
      Running setup.py bdist_wheel for thrift ... done
      Stored in directory: /root/.cache/pip/wheels/be/36/81/0f93ba89a1cb7887c91937948519840a72c0ffdd57cac0ae8f
    Successfully built thrift
    Installing collected packages: six, thrift
    Successfully installed six-1.11.0 thrift-0.11.0

安装hbase-thrift依赖包

    (project-env) root@master:/usr/local/myPythonEnv/project-env/bin# pip install hbase-thrift
    Collecting hbase-thrift
    /usr/local/myPythonEnv/project-env/local/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py:339: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
      SNIMissingWarning
    /usr/local/myPythonEnv/project-env/local/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py:137: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
      InsecurePlatformWarning
    /usr/local/myPythonEnv/project-env/local/lib/python2.7/site-packages/pip/_vendor/urllib3/util/ssl_.py:137: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
      InsecurePlatformWarning
      Downloading https://files.pythonhosted.org/packages/89/f7/dbb6c764bb909ed361c255828701228d8c9867d541cfef84127e6f3704cc/hbase-thrift-0.20.4.tar.gz
    Requirement already satisfied: Thrift in /usr/local/myPythonEnv/project-env/lib/python2.7/site-packages (from hbase-thrift) (0.11.0)
    Requirement already satisfied: six>=1.7.2 in /usr/local/myPythonEnv/project-env/lib/python2.7/site-packages (from Thrift->hbase-thrift) (1.11.0)
    Building wheels for collected packages: hbase-thrift
      Running setup.py bdist_wheel for hbase-thrift ... done
      Stored in directory: /root/.cache/pip/wheels/fe/51/f2/afb7b010cd97910aa0b651d492735a38ed69a93a817444904e
    Successfully built hbase-thrift
    Installing collected packages: hbase-thrift
    Successfully installed hbase-thrift-0.20.4
    (project-env) root@master:/usr/local/myPythonEnv/project-env/bin#

Python链接HBASE的测试程序

    (project-env) root@master:/usr/local/noc_python_201806# vi queryTest.py

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

    from hbase import Hbase
    from hbase.ttypes import *

    transport = TSocket.TSocket('localhost', 9090)

    transport = TTransport.TBufferedTransport(transport)
    protocol = TBinaryProtocol.TBinaryProtocol(transport)

    client = Hbase.Client(protocol)
    transport.open()
    print client.getTableNames()

运行结果为，查询出表：

    (project-env) root@master:/usr/local/noc_python_201806# python queryTest.py
    ['test', 'testHbase']
    (project-env) root@master:/usr/local/noc_python_201806#

Hbase中的表

hbase(main):025:0> list TABLE test testHbase 2 row(s) Took 0.0188 seconds => ["test", "testHbase"] hbase(main):026:0>