PHP-Driver DataStax Cassandra DB - 如何使用？

Question

我完成的安装过程如下：

系统

PHP 7.0.5-1~dotdeb+8.1 (cli) ( NTS )

Debian 8

Nginx 1.8.1

Laravel 5.2

Java 安装

mkdir -p /usr/lib/jvm
wget URL to Oraclesite
mv mv jdk-8u77-linux-x64.tar.gz\?... jdk-8u77-linux-x64.tar.gz
tar xzf jdk-8u77-linux-x64.tar.gz
rm jdk-8u77-linux-x64.tar.gz
update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.8.0_version/bin/java" 1
update-alternatives --set java /usr/lib/jvm/jdk1.8.0_version/bin/java

安装需要的包

apt install cmake automake libtool git php7.0-dev libgmp-dev libssl-dev

Libuv 安装

cd /tmp
wget http://dist.libuv.org/dist/v1.7.5/libuv-v1.7.5.tar.gz
tar xzf libuv-v1.7.5.tar.gz
rm libuv-v1.9.0.tar.gz
cd libuv-v1.7.5
sh autogen.sh
./configure
make
make install
ldconfig

安装 Cassandra Datatrax

echo "deb http://debian.datastax.com/community stable main" | sudo tee -a /etc/apt/sources.list.d/cassandra.sources.list
curl -L http://debian.datastax.com/debian/repo_key | sudo apt-key add -
apt install cassandra dsc30

检查服务

service cassandra status

cassandra.service - LSB: distributed storage system for structured data Loaded: loaded (/etc/init.d/cassandra) Active: active (running) since Mon 2016-04-11 01:11:04 CEST; 19min ago Process: 506 ExecStart=/etc/init.d/cassandra start (code=exited, status=0/SUCCESS) CGroup: /system.slice/cassandra.service

nodetool status

Datacenter: datacenter1 ======================= Status=Up/Down |/ State=Normal/Leaving/Joining/Moving -- Address Load Tokens Owns (effective) Host ID Rack UN 127.0.0.1 139.06 KB 256 100.0%
1ab0e99a-41a5-4007-b9ca-de58dc88e318 rack1

cqlsh

Connected to Test Cluster at 127.0.0.1:9042. [cqlsh 5.0.1 | Cassandra 3.0.4 | CQL spec 3.4.0 | Native protocol v4] Use HELP for help.

安装php-驱动（PECL 安装不工作。我认为这是因为只有 php7 个设置）

git clone https://github.com/datastax/php-driver.git
cd php-driver
git submodule update --init
cd ext
./install.sh
make test -> all tests passed

将驱动程序添加到 PHP 扩展程序

echo -e "; DataStax PHP Driver\nextension=cassandra.so" >> /etc/php/7.0/cli/php.ini

// UPDATE - added extension to fpm/php.ini file.
echo -e "; DataStax PHP Driver\nextension=cassandra.so" >> /etc/php/7.0/fpm/php.ini

重启nginx和php7.0-fpm

service nginx restart
service php7.0-fpm restart

问题：

如果我想使用下面的代码，它会提示我 class 找不到 Cassandra。网页：https://github.com/datastax/php-driver#datastax-php-driver-for-apache-cassandra

$cluster = Cassandra::cluster()->build();

感谢您的帮助。

Answer 1

由于您正在尝试使用 nginx+fpm 执行 PHP 脚本，因此您需要更新相应的 php.ini 文件（例如 /etc/php7/fpm/php.ini）。

将驱动模块添加到您的 nginx+fpm 安装中

echo -e "; DataStax PHP Driver\nextension=cassandra.so" >> /etc/php/7.0/fpm/php.ini

为确保通过 CLI 正确加载驱动程序，您可以执行以下操作：

php -m | grep cassandra

或

php -i | grep -A 10 "^cassandra$"

php -m 将打印出 PHP 能够加载的所有 extension/modules 而 php -i 将显示有关 PHP 安装配置的更多详细信息.

Answer 2

更新 1

当我执行以下2条命令时，我得到了以下两个结果，看起来很成功。

php-m | grep 卡桑德拉

cassandra

php-i | grep -A 10 "^cassandra$"

cassandra

Cassandra support => enabled C/C++ driver version => 2.2.2 Persistent Clusters => 0 Persistent Sessions => 0

Directive => Local Value => Master Value cassandra.log => cassandra.log => cassandra.log cassandra.log_level => ERROR => ERROR

但还是报错class Cassandra.

更新 2

一切正常。

php > $cluster = Cassandra::cluster()->build(); 
php > var_dump($cluster); 
object(Cassandra\DefaultCluster)#2 (0) { } 
php >

PHP-Driver DataStax Cassandra DB - 如何使用？

PHP-Driver DataStax Cassandra DB - How to use?

debian

nginx

cassandra

nosql

php-7