php通过thrift操作hbase

最新推荐文章于 2021-03-11 06:19:16 发布

原创最新推荐文章于 2021-03-11 06:19:16 发布 · 95 阅读

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#大数据 #php #运维

本文详细介绍如何在CentOS 5.8环境下配置HBase与PHP的交互环境，包括Thrift的编译安装、生成PHP与HBase的接口文件、复制相关文件到web目录以及通过示例代码展示如何使用PHP客户端连接和操作HBase。

环境配置

操作系统 centos 5.8 hadoop版本cloudera cdh3u3 hbase版本hbase-0.90.4-cdh3u3 php版本5.2

1. 下载并编译thrift

# wget http://ftp.tc.edu.tw/pub/Apache/thrift/0.8.0/thrift-0.8.0.tar.gz

安装所需的依赖包

# yum install automake libtool flex bison pkgconfig gcc-c++ boost-devel libevent-devel zlib-devel python-devel ruby-devel php php-devel

# tar zxvf thrift-0.8.0.tar.gz

# cd thrift-0.8.0

# ./configure --prefix=/home/thrift --with-php-config=/usr/bin/php-config

# make && make install

2 生成php和hbase的接口文件：

# cd /home/thrift/

# bin/thrift --gen php $HBASE_HOME/src/main/resources/org/apache/hadoop/hbase/thrift/Hbase.thrift

# cd gen-php/Hbase

# ls

Hbase.php Hbase_types.php

3. 把PHP客户端需要的包及刚才生成的接口文件复制出来供php程序调用：

# mkdir -p /var/www/html/hbasethrift/libs (/var/www/html为apache的web主目录)

# cp -a /home/soft/thrift-0.8.0/lib/php/src /var/www/html/hbasethrift/libs

# mkdir -p /var/www/html/hbasethrift/libs/packages

# cp -a /home/thrift/gen-php/Hbase /var/www/html/hbasethrift/libs/packages

4. 启动hbase thrift server，测试php连接hbase

# ./bin/hbase-daemon.sh start thrift

hbase thrift 默认监听端口为9090

测试php连接与操作hbase代码

# vi hbasethrift.php

<?php
$GLOBALS['THRIFT_ROOT'] = '/home/www/html/hbasethrift/libs';
require_once( $GLOBALS['THRIFT_ROOT'].'/Thrift.php' );
require_once( $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php' );
require_once( $GLOBALS['THRIFT_ROOT'].'/transport/TBufferedTransport.php' );
require_once( $GLOBALS['THRIFT_ROOT'].'/protocol/TBinaryProtocol.php' );
require_once( $GLOBALS['THRIFT_ROOT'].'/packages/Hbase/Hbase.php' );
$socket = new TSocket( 'localhost', 9090 );
$socket->setSendTimeout( 10000 ); // Ten seconds (too long for production, but this is just a demo ;)
$socket->setRecvTimeout( 20000 ); // Twenty seconds
$transport = new TBufferedTransport( $socket );
$protocol = new TBinaryProtocol( $transport );
$client = new HbaseClient( $protocol );
$transport->open();
echo nl2br( "listing tables...\n" );
$tables = $client->getTableNames();
sort( $tables );
foreach ( $tables as $name ) {
echo nl2br( "  found: {$name}\n" );
}
$columns = array(
new ColumnDescriptor( array(
'name' => 'entry:',
'maxVersions' => 10
) ),
new ColumnDescriptor( array(
'name' => 'unused:'
) )
);
$t = "table1";
echo( "creating table: {$t}\n" );
try {
$client->createTable( $t, $columns );
} catch ( AlreadyExists $ae ) {
echo( "WARN: {$ae->message}\n" );
}
$t = "test";
echo( "column families in {$t}:\n" );
$descriptors = $client->getColumnDescriptors( $t );
asort( $descriptors );
foreach ( $descriptors as $col ) {
echo( "  column: {$col->name}, maxVer: {$col->maxVersions}\n" );
}
$t = "table1";
echo( "column families in {$t}:\n" );
$descriptors = $client->getColumnDescriptors( $t );
asort( $descriptors );
foreach ( $descriptors as $col ) {
echo( "  column: {$col->name}, maxVer: {$col->maxVersions}\n" );
}
$t = "table1";
$row = "row_name";
$valid = "foobar-\xE7\x94\x9F\xE3\x83\x93";
$mutations = array(
new Mutation( array(
'column' => 'entry:foo',
'value' => $valid
) ),
);
$client->mutateRow( $t, $row, $mutations );
$table_name = "table1";
$row_name = 'row_name';
$fam_col_name = 'entry:foo';
$arr = $client->get($table_name, $row_name , $fam_col_name);
// $arr = array
foreach ( $arr as $k=>$v  ) {
// $k = TCell
echo ("value = {$v->value} , <br>  ");
echo ("timestamp = {$v->timestamp}  <br>");
}
$table_name = "table1";
$row_name = "row_name";
$arr = $client->getRow($table_name, $row_name);
// $client->getRow return a array
foreach ( $arr as $k=>$TRowResult  ) {
// $k = 0 ; non-use
// $TRowResult = TRowResult
var_dump($TRowResult);
}
$transport->close();
?>

通过浏览器访问http://localhost/hbasethrift/hbasethrift.php,如果显示hbase中的表名与新建表table1 ，说明连接成功。

hbase thrift api 参考http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/thrift/doc-files/index.html

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