我需要帮助才能使用'PHPCassa'将Cassandra与php连接起来。我尝试了但是得到了以下异常。我正在使用Ubuntu作为Web服务器。
NoServerAvailable Object（[message：protected] =＆gt;尝试连接到每个服务器两次，但所有尝试都失败。最后一个错误是：异常'cassandra_InvalidRequestException'，消息'Keyspace'testApp'不存在'在/var/www/Cassandra/phpcassa/thrift/packages/cassandra/Cassandra.php:138堆栈追踪：＃0 /var/www/Cassandra/phpcassa/thrift/packages/cassandra/Cassandra.php(138):swift_protocol_read_binary（对象（TBinaryProtocolAccelerated），'cassandra_Cassa ...'，false）＃1 /var/www/Cassandra/phpcassa/thrift/packages/cassandra/Cassandra.php(113）：CassandraClient-＆gt; recv_set_keyspace（）＃2 / var / www / Cassandra / phpcassa / connection.php（102）：CassandraClient-＆gt; set_keyspace（'testApp'）＃3 /var/www/Cassandra/phpcassa/connection.php(84）：ConnectionWrapper-＆gt; set_keyspace（'testApp' ）＃4 /var/www/Cassandra/phpcassa/connection.php(222）：ConnectionWrapper-＆gt; __ construct（'testApp'，'127.0.0.1：9160'，NULL，true，5000,5000）＃5 / var / WWW /卡桑德拉/ phpcassa / connection.p hp（258）：ConnectionPool-＆gt; make_conn（）＃6 /var/www/Cassandra/phpcassa/connection.php(352）：ConnectionPool-＆gt; get（）＃7 / var / www / Cassandra / phpcassa / connection。 php（287）：ConnectionPool-＆gt; call（'describe_keyspa ...'，'testApp'）＃8 /var/www/Cassandra/phpcassa/columnfamily.php(194):ConnectPool-＆gt; describe_keyspace（）＃9 / var / www / Cassandra / index.php（7）：ColumnFamily-＆gt; __ construct（Object（ConnectionPool），'Users'）＃10 {main} [string：Exception：private] =＆gt; [code：protected] =＆gt; 0 [file：protected] =＆gt; /var/www/Cassandra/phpcassa/connection.php [line：protected] =＆gt; 233 [trace：Exception：private] =＆gt;数组（[0] =＆gt;数组（[file] =＆gt; /var/www/Cassandra/phpcassa/connection.php [line] =＆gt; 258 [function] =＆gt; make_conn [class] =＆gt; ConnectionPool [ type] =＆gt; - ＆gt; [args] =＆gt; Array（））[1] =＆gt;数组（[file] =＆gt; /var/www/Cassandra/phpcassa/connection.php [line] =＆gt; 352 [function] =＆gt; get [class] =＆gt; ConnectionPool [type] =＆gt; - ＆gt; [args] =＆gt; Array（））[2] =＆gt;数组（[file] =＆gt; / var /www/Cassandra/phpcassa/connection.php [line] =＆gt; 287 [function] =＆gt; call [class] =＆gt; ConnectionPool [type] =＆gt; - ＆gt; [args] =＆gt;数组（[0 ] =＆gt; describe_keyspace [1] =＆gt; testApp））[3] =＆gt;数组（[file] =＆gt; /var/www/Cassandra/phpcassa/columnfamily.php [line] =＆gt; 194 [功能] =＆gt; describe_keyspace [class] =＆gt; ConnectionPool [type] =＆gt; - ＆gt; [args] =＆gt; Array（））[4] =＆gt;数组（[file] =＆gt; / var / www / Cassandra /index.php [line] =＆gt; 7 [function] =＆gt; __construct [class] =＆gt; ColumnFamily [type] =＆gt; - ＆gt; [args] =＆gt;数组（[0] =＆gt; Co nnectionPool对象（[keyspace] =＆gt; testApp [servers：ConnectionPool：private] =＆gt;数组（[0] =＆gt; 127.0.0.1:9160）[pool_size：ConnectionPool：private] =＆gt; 5 [send_timeout：ConnectionPool：private] =＆gt; 5000 [recv_timeout：ConnectionPool：private] =＆gt; 5000 [凭证：ConnectionPool：私人] =＆gt; [framed_transport：ConnectionPool：private] =＆gt; 1 [queue：ConnectionPool：private] =＆gt; Array（）[keyspace_description：ConnectionPool：private] =＆gt; [max_retries] =＆gt; 5 [recycle] =＆gt; 10000 [stats] =＆gt;数组（[created] =＆gt; 0 [失败] =＆gt; 2 [再生] =＆gt; 0）[list_position] =＆gt; 0）[1] =＆gt;用户）））[上一个：例外：私人] =＆gt; ）
答案 0 :(得分：1)
Keyspace名称与thrift（phpcassa）区分大小写。如果使用“cqlsh”创建密钥空间，并且未使用单引号，则CQL会在创建之前将名称转换为小写。
http://www.datastax.com/documentation/cassandra/1.2/webhelp/index.html#cassandra/cql_reference/cql_lexicon_c.html#reference_ds_b4h_gx5_yj
尝试连接“testapp”作为phpcassa中的名称。