JRuby Cassandra 问题

Question

我正在使用 Jruby 连接 Cassandra 和 ruby​​。我正在开发一个必须与 Rails 中的 cassandra 交互的代码。我已经配置并安装了jruby。我还对 cassandra 和 jruby 的所有依赖项进行了“导入”。我在运行文件时遇到问题。我收到这样的错误。

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org/apache/thrift/transport/TIOStreamTransport.java:132:in `read': org.apache.thrift.transport.TTransportException: null (NativeException)
    from org/apache/thrift/transport/TTransport.java:84:in `readAll'
    from org/apache/thrift/protocol/TBinaryProtocol.java:378:in `readAll'
    from org/apache/thrift/protocol/TBinaryProtocol.java:297:in `readI32'
    from org/apache/thrift/protocol/TBinaryProtocol.java:204:in `readMessageBegin'
    from org/apache/cassandra/thrift/Cassandra.java:1062:in `recv_describe_cluster_name'
    from org/apache/cassandra/thrift/Cassandra.java:1048:in `describe_cluster_name'
    from sun/reflect/NativeMethodAccessorImpl.java:-2:in `invoke0'
    from sun/reflect/NativeMethodAccessorImpl.java:39:in `invoke'
     ... 13 levels...
    from org/jruby/Main.java:203:in `run'
    from org/jruby/Main.java:100:in `run'
    from org/jruby/Main.java:84:in `main'

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谁能帮我解决这个问题？

Answer 1

您可以发布您的代码吗？仅通过堆栈跟踪很难进行调试。

看起来您正在使用原始 thrift，有一个用于 java cassandra 客户端库的 jruby 包装器 < href="https://github.com/rantav/hector" rel="nofollow">hector 会更容易使用。