无法使用 phpcassa 连接到云服务器上的 Cassandra

Question

我已经设置了一个测试云服务器（Rackspace 上的 Ubuntu 10.10）来使用 Cassandra 数据库 (0.6.8)。 我可以使用 cassandra-cli 基本客户端从服务器内部和云外部计算机进行连接，没有任何问题：我已经创建并检索了示例数据。

然后我在云服务器和外部计算机上安装了 phpcassa。

我创建了一个非常简单的 php 程序来测试连接：

<?php
$GLOBALS['THRIFT_ROOT'] = dirname(__FILE__) . '/include/thrift/';
require_once $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/Cassandra.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';
require_once $GLOBALS['THRIFT_ROOT'].'/protocol/TBinaryProtocol.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TFramedTransport.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TBufferedTransport.php';

include_once(dirname(__FILE__) . '/include/phpcassa.php');
include_once(dirname(__FILE__) . '/include/uuid.php');

echo 'phpcassa test01<br /><br />';
CassandraConn::add_node('184.106.97.245', 9160);

$users = new CassandraCF('Keyspace1', 'Standard2');

try {
    $res = $users->get('jsmith');
    print_r($res);
} catch (Exception $e) {
    print CassandraConn::$last_error;
}

echo 'End.'
?>

我正在使用缓冲传输。

我可以愉快地从服务器内部连接并读取数据（我还在服务器上安装了 LAMP）：

phpcassa test01
Array ( [age] => 42 [first] => John [last] => Smith ) 
End.

但不能从外部连接，因为我总是遇到异常：

phpcassa test01
TException: TSocket: Could not connect to 184.106.97.245:9160 (Operation timed out [60])
End.

这是我的 storage-conf.xml 文件：

<Storage>
<ClusterName>Test Cluster</ClusterName>
<AutoBootstrap>false</AutoBootstrap>
<HintedHandoffEnabled>true</HintedHandoffEnabled>
<IndexInterval>128</IndexInterval>
<Keyspaces>
<Keyspace Name="Keyspace1">
  <ColumnFamily Name="Standard1" CompareWith="BytesType"
                KeysCached="1000"
                RowsCached="100"
                RowCacheSavePeriodInSeconds="0"
                KeyCacheSavePeriodInSeconds="3600"/>
  <ColumnFamily Name="Standard2" 
                CompareWith="UTF8Type"
                KeysCached="100%"/>
  <ColumnFamily Name="StandardByUUID1" CompareWith="TimeUUIDType" />
  <ColumnFamily Name="Super1"
                ColumnType="Super"
                CompareWith="BytesType"
                CompareSubcolumnsWith="BytesType" />
  <ColumnFamily Name="Super2"
                ColumnType="Super"
                CompareWith="UTF8Type"
                CompareSubcolumnsWith="UTF8Type"
                RowsCached="10000"
                KeysCached="50%"
                Comment="A column family with supercolumns, whose column and subcolumn names are UTF8 strings"/>
  <ReplicaPlacementStrategy>org.apache.cassandra.locator.RackUnawareStrategy</ReplicaPlacementStrategy>
  <ReplicationFactor>1</ReplicationFactor>
  <EndPointSnitch>org.apache.cassandra.locator.EndPointSnitch</EndPointSnitch>        
</Keyspace>
</Keyspaces>
<Authenticator>org.apache.cassandra.auth.AllowAllAuthenticator</Authenticator>  
<Partitioner>org.apache.cassandra.dht.RandomPartitioner</Partitioner>
<InitialToken></InitialToken>
<SavedCachesDirectory>/var/lib/cassandra/saved_caches</SavedCachesDirectory>
<CommitLogDirectory>/var/lib/cassandra/commitlog</CommitLogDirectory>
<DataFileDirectories>
  <DataFileDirectory>/var/lib/cassandra/data</DataFileDirectory>
</DataFileDirectories>
<Seeds>
  <Seed>184.106.97.245</Seed>
</Seeds>
<RpcTimeoutInMillis>10000</RpcTimeoutInMillis>
<CommitLogRotationThresholdInMB>128</CommitLogRotationThresholdInMB>
<ListenAddress>184.106.97.245</ListenAddress>
<StoragePort>7000</StoragePort>
<ThriftAddress>184.106.97.245</ThriftAddress>
<ThriftPort>9160</ThriftPort>
<ThriftFramedTransport>false</ThriftFramedTransport>
<DiskAccessMode>auto</DiskAccessMode>
<RowWarningThresholdInMB>64</RowWarningThresholdInMB>
<SlicedBufferSizeInKB>64</SlicedBufferSizeInKB>
<FlushDataBufferSizeInMB>32</FlushDataBufferSizeInMB>
<FlushIndexBufferSizeInMB>8</FlushIndexBufferSizeInMB>
<ColumnIndexSizeInKB>64</ColumnIndexSizeInKB>
<MemtableThroughputInMB>64</MemtableThroughputInMB>
<BinaryMemtableThroughputInMB>256</BinaryMemtableThroughputInMB>
<MemtableOperationsInMillions>0.3</MemtableOperationsInMillions>
<MemtableFlushAfterMinutes>60</MemtableFlushAfterMinutes>
<ConcurrentReads>8</ConcurrentReads>
<ConcurrentWrites>32</ConcurrentWrites>
<CommitLogSync>periodic</CommitLogSync>
<CommitLogSyncPeriodInMS>10000</CommitLogSyncPeriodInMS>
<GCGraceSeconds>864000</GCGraceSeconds>
<DoConsistencyChecksBoolean>true</DoConsistencyChecksBoolean>
</Storage>

Rackspace 支持建议更改防火墙设置但我没有防火墙：

root@Oahu:~# iptables --list
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

非常感谢任何帮助！

干杯，鲁杰罗

Answer 1

使用 http://wiki.apache.org/cassandra/Cas​​sandraCli 访问节点（首先）