使用phpcassa無法連接到雲服務器上的Cassandra

Question

我已經在Cassandra database（0.6.8）上安裝了一個測試雲服務器（Rackspace上的Ubuntu 10.10）。 使用cassandra-cli基本客戶端，我無法從服務器內部和外部計算機連接任何問題：我創建並檢索了示例數據。

我已經在雲服務器和外部計算機上安裝了phpcassa。

我創建了一個非常簡單的PHP程序來測試連接：

<?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.' 
?> 

我使用緩衝的傳輸。

我可以高興地連接並從服務器讀取中的數據（上我也安裝LAMP）：

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

而不是從外面，因爲我總是得到異常：

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

這是我的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支持建議更改fir ewall設置，但我沒有防火牆：

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   

任何幫助非常感謝！

乾杯，Rujero

Answer 1

接入節點（第一）與http://wiki.apache.org/cassandra/CassandraCli